Author name code: malanushenko-olena
ADS astronomy entries on 2022-09-14
author:"Malanushenko, Olena"
------------------------------------------------------------------------
Title: VizieR Online Data Catalog: Low ionization emission-line
regions galaxies (Belfiore+, 2017)
Authors: Belfiore, F.; Maiolino, R.; Maraston, C.; Emsellem, E.;
Bershady, M. A.; Masters, K. L.; Bizyaev, D.; Boquien, M.; Brownstein,
J. R.; Bundy, K.; Diamond-Stanic, A. M.; Drory, N.; Heckman, T. M.;
Law, D. R.; Malanushenko, O.; Oravetz, A.; Pan, K.; Roman-Lopes, A.;
Thomas, D.; Weijmans, A. -M.; Westfall, K. B.; Yan, R.
Bibcode: 2019yCat..74662570B
Altcode:
We study the properties of galaxies based on their spatially resolved
ionized gas emission. We make use of spatially resolved spectroscopy
for a sample of 586 galaxies from SDSS-IV MaNGA. The sample is
presented in table B. Direct any queries to Francesco Belfiore,
fb338(at)cam.ac.uk. (1 data file).
Title: The Fifteenth Data Release of the Sloan Digital Sky Surveys:
First Release of MaNGA-derived Quantities, Data Visualization Tools,
and Stellar Library
Authors: Aguado, D. S.; Ahumada, Romina; Almeida, Andrés; Anderson,
Scott F.; Andrews, Brett H.; Anguiano, Borja; Aquino Ortíz, Erik;
Aragón-Salamanca, Alfonso; Argudo-Fernández, Maria; Aubert, Marie;
Avila-Reese, Vladimir; Badenes, Carles; Barboza Rembold, Sandro;
Barger, Kat; Barrera-Ballesteros, Jorge; Bates, Dominic; Bautista,
Julian; Beaton, Rachael L.; Beers, Timothy C.; Belfiore, Francesco;
Bernardi, Mariangela; Bershady, Matthew; Beutler, Florian; Bird,
Jonathan; Bizyaev, Dmitry; Blanc, Guillermo A.; Blanton, Michael R.;
Blomqvist, Michael; Bolton, Adam S.; Boquien, Médéric; Borissova,
Jura; Bovy, Jo; Brandt, William Nielsen; Brinkmann, Jonathan;
Brownstein, Joel R.; Bundy, Kevin; Burgasser, Adam; Byler, Nell; Cano
Diaz, Mariana; Cappellari, Michele; Carrera, Ricardo; Cervantes Sodi,
Bernardo; Chen, Yanping; Cherinka, Brian; Choi, Peter Doohyun; Chung,
Haeun; Coffey, Damien; Comerford, Julia M.; Comparat, Johan; Covey,
Kevin; da Silva Ilha, Gabriele; da Costa, Luiz; Dai, Yu Sophia; Damke,
Guillermo; Darling, Jeremy; Davies, Roger; Dawson, Kyle; de Sainte
Agathe, Victoria; Deconto Machado, Alice; Del Moro, Agnese; De Lee,
Nathan; Diamond-Stanic, Aleksandar M.; Domínguez Sánchez, Helena;
Donor, John; Drory, Niv; du Mas des Bourboux, Hélion; Duckworth,
Chris; Dwelly, Tom; Ebelke, Garrett; Emsellem, Eric; Escoffier,
Stephanie; Fernández-Trincado, José G.; Feuillet, Diane; Fischer,
Johanna-Laina; Fleming, Scott W.; Fraser-McKelvie, Amelia; Freischlad,
Gordon; Frinchaboy, Peter M.; Fu, Hai; Galbany, Lluís; Garcia-Dias,
Rafael; García-Hernández, D. A.; Garma Oehmichen, Luis Alberto;
Geimba Maia, Marcio Antonio; Gil-Marín, Héctor; Grabowski, Kathleen;
Gu, Meng; Guo, Hong; Ha, Jaewon; Harrington, Emily; Hasselquist, Sten;
Hayes, Christian R.; Hearty, Fred; Hernandez Toledo, Hector; Hicks,
Harry; Hogg, David W.; Holley-Bockelmann, Kelly; Holtzman, Jon A.;
Hsieh, Bau-Ching; Hunt, Jason A. S.; Hwang, Ho Seong; Ibarra-Medel,
Héctor J.; Jimenez Angel, Camilo Eduardo; Johnson, Jennifer; Jones,
Amy; Jönsson, Henrik; Kinemuchi, Karen; Kollmeier, Juna; Krawczyk,
Coleman; Kreckel, Kathryn; Kruk, Sandor; Lacerna, Ivan; Lan, Ting-Wen;
Lane, Richard R.; Law, David R.; Lee, Young-Bae; Li, Cheng; Lian,
Jianhui; Lin, Lihwai; Lin, Yen-Ting; Lintott, Chris; Long, Dan;
Longa-Peña, Penélope; Mackereth, J. Ted; de la Macorra, Axel;
Majewski, Steven R.; Malanushenko, Olena; Manchado, Arturo; Maraston,
Claudia; Mariappan, Vivek; Marinelli, Mariarosa; Marques-Chaves,
Rui; Masseron, Thomas; Masters, Karen L.; McDermid, Richard M.;
Medina Peña, Nicolás; Meneses-Goytia, Sofia; Merloni, Andrea;
Merrifield, Michael; Meszaros, Szabolcs; Minniti, Dante; Minsley,
Rebecca; Muna, Demitri; Myers, Adam D.; Nair, Preethi; Correa do
Nascimento, Janaina; Newman, Jeffrey A.; Nitschelm, Christian;
Olmstead, Matthew D.; Oravetz, Audrey; Oravetz, Daniel; Ortega
Minakata, René A.; Pace, Zach; Padilla, Nelson; Palicio, Pedro A.;
Pan, Kaike; Pan, Hsi-An; Parikh, Taniya; Parker, James, III; Peirani,
Sebastien; Penny, Samantha; Percival, Will J.; Perez-Fournon, Ismael;
Peterken, Thomas; Pinsonneault, Marc H.; Prakash, Abhishek; Raddick,
M. Jordan; Raichoor, Anand; Riffel, Rogemar A.; Riffel, Rogério; Rix,
Hans-Walter; Robin, Annie C.; Roman-Lopes, Alexandre; Rose, Benjamin;
Ross, Ashley J.; Rossi, Graziano; Rowlands, Kate; Rubin, Kate H. R.;
Sánchez, Sebastián F.; Sánchez-Gallego, José R.; Sayres, Conor;
Schaefer, Adam; Schiavon, Ricardo P.; Schimoia, Jaderson S.; Schlafly,
Edward; Schlegel, David; Schneider, Donald P.; Schultheis, Mathias;
Seo, Hee-Jong; Shamsi, Shoaib J.; Shao, Zhengyi; Shen, Shiyin;
Shetty, Shravan; Simonian, Gregory; Smethurst, Rebecca J.; Sobeck,
Jennifer; Souter, Barbara J.; Spindler, Ashley; Stark, David V.;
Stassun, Keivan G.; Steinmetz, Matthias; Storchi-Bergmann, Thaisa;
Stringfellow, Guy S.; Suárez, Genaro; Sun, Jing; Taghizadeh-Popp,
Manuchehr; Talbot, Michael S.; Tayar, Jamie; Thakar, Aniruddha R.;
Thomas, Daniel; Tissera, Patricia; Tojeiro, Rita; Troup, Nicholas W.;
Unda-Sanzana, Eduardo; Valenzuela, Octavio; Vargas-Magaña, Mariana;
Vázquez-Mata, José Antonio; Wake, David; Weaver, Benjamin Alan;
Weijmans, Anne-Marie; Westfall, Kyle B.; Wild, Vivienne; Wilson, John;
Woods, Emily; Yan, Renbin; Yang, Meng; Zamora, Olga; Zasowski, Gail;
Zhang, Kai; Zheng, Zheng; Zheng, Zheng; Zhu, Guangtun; Zinn, Joel C.;
Zou, Hu
Bibcode: 2019ApJS..240...23A
Altcode: 2018arXiv181202759A
Twenty years have passed since first light for the Sloan Digital Sky
Survey (SDSS). Here, we release data taken by the fourth phase of SDSS
(SDSS-IV) across its first three years of operation (2014 July-2017
July). This is the third data release for SDSS-IV, and the 15th from
SDSS (Data Release Fifteen; DR15). New data come from MaNGA—we
release 4824 data cubes, as well as the first stellar spectra in the
MaNGA Stellar Library (MaStar), the first set of survey-supported
analysis products (e.g., stellar and gas kinematics, emission-line
and other maps) from the MaNGA Data Analysis Pipeline, and a new data
visualization and access tool we call “Marvin.” The next data
release, DR16, will include new data from both APOGEE-2 and eBOSS;
those surveys release no new data here, but we document updates
and corrections to their data processing pipelines. The release is
cumulative; it also includes the most recent reductions and calibrations
of all data taken by SDSS since first light. In this paper, we describe
the location and format of the data and tools and cite technical
references describing how it was obtained and processed. The SDSS
website (www.sdss.org) has also been updated, providing links to data
downloads, tutorials, and examples of data use. Although SDSS-IV will
continue to collect astronomical data until 2020, and will be followed
by SDSS-V (2020-2025), we end this paper by describing plans to ensure
the sustainability of the SDSS data archive for many years beyond the
collection of data.
Title: The 13th Data Release of the Sloan Digital Sky Survey: First
Spectroscopic Data from the SDSS-IV Survey Mapping Nearby Galaxies
at Apache Point Observatory
Authors: Albareti, Franco D.; Allende Prieto, Carlos; Almeida,
Andres; Anders, Friedrich; Anderson, Scott; Andrews, Brett H.;
Aragón-Salamanca, Alfonso; Argudo-Fernández, Maria; Armengaud,
Eric; Aubourg, Eric; Avila-Reese, Vladimir; Badenes, Carles; Bailey,
Stephen; Barbuy, Beatriz; Barger, Kat; Barrera-Ballesteros, Jorge;
Bartosz, Curtis; Basu, Sarbani; Bates, Dominic; Battaglia, Giuseppina;
Baumgarten, Falk; Baur, Julien; Bautista, Julian; Beers, Timothy
C.; Belfiore, Francesco; Bershady, Matthew; Bertran de Lis, Sara;
Bird, Jonathan C.; Bizyaev, Dmitry; Blanc, Guillermo A.; Blanton,
Michael; Blomqvist, Michael; Bolton, Adam S.; Borissova, J.; Bovy,
Jo; Brandt, William Nielsen; Brinkmann, Jonathan; Brownstein,
Joel R.; Bundy, Kevin; Burtin, Etienne; Busca, Nicolás G.;
Camacho Chavez, Hugo Orlando; Cano Díaz, M.; Cappellari, Michele;
Carrera, Ricardo; Chen, Yanping; Cherinka, Brian; Cheung, Edmond;
Chiappini, Cristina; Chojnowski, Drew; Chuang, Chia-Hsun; Chung,
Haeun; Cirolini, Rafael Fernando; Clerc, Nicolas; Cohen, Roger E.;
Comerford, Julia M.; Comparat, Johan; Correa do Nascimento, Janaina;
Cousinou, Marie-Claude; Covey, Kevin; Crane, Jeffrey D.; Croft, Rupert;
Cunha, Katia; Darling, Jeremy; Davidson, James W., Jr.; Dawson, Kyle;
Da Costa, Luiz; Da Silva Ilha, Gabriele; Deconto Machado, Alice;
Delubac, Timothée; De Lee, Nathan; De la Macorra, Axel; De la Torre,
Sylvain; Diamond-Stanic, Aleksandar M.; Donor, John; Downes, Juan
Jose; Drory, Niv; Du, Cheng; Du Mas des Bourboux, Hélion; Dwelly,
Tom; Ebelke, Garrett; Eigenbrot, Arthur; Eisenstein, Daniel J.;
Elsworth, Yvonne P.; Emsellem, Eric; Eracleous, Michael; Escoffier,
Stephanie; Evans, Michael L.; Falcón-Barroso, Jesús; Fan, Xiaohui;
Favole, Ginevra; Fernandez-Alvar, Emma; Fernandez-Trincado, J. G.;
Feuillet, Diane; Fleming, Scott W.; Font-Ribera, Andreu; Freischlad,
Gordon; Frinchaboy, Peter; Fu, Hai; Gao, Yang; Garcia, Rafael A.;
Garcia-Dias, R.; Garcia-Hernández, D. A.; Garcia Pérez, Ana E.;
Gaulme, Patrick; Ge, Junqiang; Geisler, Douglas; Gillespie, Bruce;
Gil Marin, Hector; Girardi, Léo; Goddard, Daniel; Gomez Maqueo
Chew, Yilen; Gonzalez-Perez, Violeta; Grabowski, Kathleen; Green,
Paul; Grier, Catherine J.; Grier, Thomas; Guo, Hong; Guy, Julien;
Hagen, Alex; Hall, Matt; Harding, Paul; Harley, R. E.; Hasselquist,
Sten; Hawley, Suzanne; Hayes, Christian R.; Hearty, Fred; Hekker,
Saskia; Hernandez Toledo, Hector; Ho, Shirley; Hogg, David W.;
Holley-Bockelmann, Kelly; Holtzman, Jon A.; Holzer, Parker H.; Hu,
Jian; Huber, Daniel; Hutchinson, Timothy Alan; Hwang, Ho Seong;
Ibarra-Medel, Héctor J.; Ivans, Inese I.; Ivory, KeShawn; Jaehnig,
Kurt; Jensen, Trey W.; Johnson, Jennifer A.; Jones, Amy; Jullo, Eric;
Kallinger, T.; Kinemuchi, Karen; Kirkby, David; Klaene, Mark; Kneib,
Jean-Paul; Kollmeier, Juna A.; Lacerna, Ivan; Lane, Richard R.; Lang,
Dustin; Laurent, Pierre; Law, David R.; Leauthaud, Alexie; Le Goff,
Jean-Marc; Li, Chen; Li, Cheng; Li, Niu; Li, Ran; Liang, Fu-Heng;
Liang, Yu; Lima, Marcos; Lin, Lihwai; Lin, Lin; Lin, Yen-Ting; Liu,
Chao; Long, Dan; Lucatello, Sara; MacDonald, Nicholas; MacLeod,
Chelsea L.; Mackereth, J. Ted; Mahadevan, Suvrath; Maia, Marcio
Antonio Geimba; Maiolino, Roberto; Majewski, Steven R.; Malanushenko,
Olena; Malanushenko, Viktor; Mallmann, Nícolas Dullius; Manchado,
Arturo; Maraston, Claudia; Marques-Chaves, Rui; Martinez Valpuesta,
Inma; Masters, Karen L.; Mathur, Savita; McGreer, Ian D.; Merloni,
Andrea; Merrifield, Michael R.; Mészáros, Szabolcs; Meza, Andres;
Miglio, Andrea; Minchev, Ivan; Molaverdikhani, Karan; Montero-Dorta,
Antonio D.; Mosser, Benoit; Muna, Demitri; Myers, Adam; Nair,
Preethi; Nandra, Kirpal; Ness, Melissa; Newman, Jeffrey A.; Nichol,
Robert C.; Nidever, David L.; Nitschelm, Christian; O'Connell, Julia;
Oravetz, Audrey; Oravetz, Daniel J.; Pace, Zachary; Padilla, Nelson;
Palanque-Delabrouille, Nathalie; Pan, Kaike; Parejko, John; Paris,
Isabelle; Park, Changbom; Peacock, John A.; Peirani, Sebastien;
Pellejero-Ibanez, Marcos; Penny, Samantha; Percival, Will J.;
Percival, Jeffrey W.; Perez-Fournon, Ismael; Petitjean, Patrick;
Pieri, Matthew; Pinsonneault, Marc H.; Pisani, Alice; Prada, Francisco;
Prakash, Abhishek; Price-Jones, Natalie; Raddick, M. Jordan; Rahman,
Mubdi; Raichoor, Anand; Barboza Rembold, Sandro; Reyna, A. M.; Rich,
James; Richstein, Hannah; Ridl, Jethro; Riffel, Rogemar A.; Riffel,
Rogério; Rix, Hans-Walter; Robin, Annie C.; Rockosi, Constance M.;
Rodríguez-Torres, Sergio; Rodrigues, Thaíse S.; Roe, Natalie; Roman
Lopes, A.; Román-Zúñiga, Carlos; Ross, Ashley J.; Rossi, Graziano;
Ruan, John; Ruggeri, Rossana; Runnoe, Jessie C.; Salazar-Albornoz,
Salvador; Salvato, Mara; Sanchez, Sebastian F.; Sanchez, Ariel G.;
Sanchez-Gallego, José R.; Santiago, Basílio Xavier; Schiavon,
Ricardo; Schimoia, Jaderson S.; Schlafly, Eddie; Schlegel, David J.;
Schneider, Donald P.; Schönrich, Ralph; Schultheis, Mathias; Schwope,
Axel; Seo, Hee-Jong; Serenelli, Aldo; Sesar, Branimir; Shao, Zhengyi;
Shetrone, Matthew; Shull, Michael; Silva Aguirre, Victor; Skrutskie,
M. F.; Slosar, Anže; Smith, Michael; Smith, Verne V.; Sobeck,
Jennifer; Somers, Garrett; Souto, Diogo; Stark, David V.; Stassun,
Keivan G.; Steinmetz, Matthias; Stello, Dennis; Storchi Bergmann,
Thaisa; Strauss, Michael A.; Streblyanska, Alina; Stringfellow, Guy S.;
Suarez, Genaro; Sun, Jing; Taghizadeh-Popp, Manuchehr; Tang, Baitian;
Tao, Charling; Tayar, Jamie; Tembe, Mita; Thomas, Daniel; Tinker,
Jeremy; Tojeiro, Rita; Tremonti, Christy; Troup, Nicholas; Trump,
Jonathan R.; Unda-Sanzana, Eduardo; Valenzuela, O.; Van den Bosch,
Remco; Vargas-Magaña, Mariana; Vazquez, Jose Alberto; Villanova,
Sandro; Vivek, M.; Vogt, Nicole; Wake, David; Walterbos, Rene; Wang,
Yuting; Wang, Enci; Weaver, Benjamin Alan; Weijmans, Anne-Marie;
Weinberg, David H.; Westfall, Kyle B.; Whelan, David G.; Wilcots,
Eric; Wild, Vivienne; Williams, Rob A.; Wilson, John; Wood-Vasey,
W. M.; Wylezalek, Dominika; Xiao, Ting; Yan, Renbin; Yang, Meng;
Ybarra, Jason E.; Yeche, Christophe; Yuan, Fang-Ting; Zakamska,
Nadia; Zamora, Olga; Zasowski, Gail; Zhang, Kai; Zhao, Cheng; Zhao,
Gong-Bo; Zheng, Zheng; Zheng, Zheng; Zhou, Zhi-Min; Zhu, Guangtun;
Zinn, Joel C.; Zou, Hu
Bibcode: 2017ApJS..233...25A
Altcode: 2016arXiv160802013S
The fourth generation of the Sloan Digital Sky Survey (SDSS-IV)
began observations in 2014 July. It pursues three core programs: the
Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2),
Mapping Nearby Galaxies at APO (MaNGA), and the Extended Baryon
Oscillation Spectroscopic Survey (eBOSS). As well as its core program,
eBOSS contains two major subprograms: the Time Domain Spectroscopic
Survey (TDSS) and the SPectroscopic IDentification of ERosita Sources
(SPIDERS). This paper describes the first data release from SDSS-IV,
Data Release 13 (DR13). DR13 makes publicly available the first 1390
spatially resolved integral field unit observations of nearby galaxies
from MaNGA. It includes new observations from eBOSS, completing the
Sloan Extended QUasar, Emission-line galaxy, Luminous red galaxy
Survey (SEQUELS), which also targeted variability-selected objects
and X-ray-selected objects. DR13 includes new reductions of the
SDSS-III BOSS data, improving the spectrophotometric calibration
and redshift classification, and new reductions of the SDSS-III
APOGEE-1 data, improving stellar parameters for dwarf stars and
cooler stars. DR13 provides more robust and precise photometric
calibrations. Value-added target catalogs relevant for eBOSS, TDSS,
and SPIDERS and an updated red-clump catalog for APOGEE are also
available. This paper describes the location and format of the data
and provides references to important technical papers. The SDSS web
site, http://www.sdss.org, provides
links to the data, tutorials, examples of data access, and extensive
documentation of the reduction and analysis procedures. DR13 is the
first of a scheduled set that will contain new data and analyses from
the planned ∼6 yr operations of SDSS-IV.
Title: SDSS-IV MaNGA - the spatially resolved transition from star
formation to quiescence
Authors: Belfiore, Francesco; Maiolino, Roberto; Maraston, Claudia;
Emsellem, Eric; Bershady, Matthew A.; Masters, Karen L.; Bizyaev,
Dmitry; Boquien, Médéric; Brownstein, Joel R.; Bundy, Kevin;
Diamond-Stanic, Aleksandar M.; Drory, Niv; Heckman, Timothy M.;
Law, David R.; Malanushenko, Olena; Oravetz, Audrey; Pan, Kaike;
Roman-Lopes, Alexandre; Thomas, Daniel; Weijmans, Anne-Marie; Westfall,
Kyle B.; Yan, Renbin
Bibcode: 2017MNRAS.466.2570B
Altcode: 2016arXiv160901737B
Using spatially resolved spectroscopy from SDSS-IV MaNGA we have
demonstrated that low ionization emission-line regions (LIERs) in local
galaxies result from photoionization by hot evolved stars, not active
galactic nuclei, hence tracing galactic region hosting old stellar
population where, despite the presence of ionized gas, star formation
is no longer occurring. LIERs are ubiquitous in both quiescent galaxies
and in the central regions of galaxies where star formation takes place
at larger radii. We refer to these two classes of galaxies as extended
LIER (eLIER) and central LIER (cLIER) galaxies, respectively. cLIERs
are late-type galaxies primarily spread across the green valley,
in the transition region between the star formation main sequence and
quiescent galaxies. These galaxies display regular disc rotation in both
stars and gas, although featuring a higher central stellar velocity
dispersion than star-forming galaxies of the same mass. cLIERs are
consistent with being slowly quenched inside-out; the transformation
is associated with massive bulges, pointing towards the importance
of bulge growth via secular evolution. eLIERs are morphologically
early types and are indistinguishable from passive galaxies devoid of
line emission in terms of their stellar populations, morphology and
central stellar velocity dispersion. Ionized gas in eLIERs shows both
disturbed and disc-like kinematics. When a large-scale flow/rotation
is observed in the gas, it is often misaligned relative to the stellar
component. These features indicate that eLIERs are passive galaxies
harbouring a residual cold gas component, acquired mostly via external
accretion. Importantly, quiescent galaxies devoid of line emission
reside in denser environments and have significantly higher satellite
fraction than eLIERs. Environmental effects thus represent the likely
cause for the existence of line-less galaxies on the red sequence.
Title: SDSS-IV MaNGA: environmental dependence of stellar age and
metallicity gradients in nearby galaxies
Authors: Zheng, Zheng; Wang, Huiyuan; Ge, Junqiang; Mao, Shude;
Li, Cheng; Li, Ran; Mo, Houjun; Goddard, Daniel; Bundy, Kevin; Li,
Hongyu; Nair, Preethi; Lin, Lihwai; Long, R. J.; Riffel, Rogério;
Thomas, Daniel; Masters, Karen; Bizyaev, Dmitry; Brownstein, Joel
R.; Zhang, Kai; Law, David R.; Drory, Niv; Roman Lopes, Alexandre;
Malanushenko, Olena
Bibcode: 2017MNRAS.465.4572Z
Altcode: 2016arXiv161201523Z
We present a study on the stellar age and metallicity distributions
for 1105 galaxies using the STARLIGHT software on MaNGA (Mapping
Nearby Galaxies at APO) integral field spectra. We derive age and
metallicity gradients by fitting straight lines to the radial profiles,
and explore their correlations with total stellar mass M*,
NUV - r colour and environments, as identified by both the large-scale
structure (LSS) type and the local density. We find that the mean age
and metallicity gradients are close to zero but slightly negative,
which is consistent with the inside-out formation scenario. Within
our sample, we find that both the age and metallicity gradients show
weak or no correlation with either the LSS type or local density
environment. In addition, we also study the environmental dependence
of age and metallicity values at the effective radii. The age and
metallicity values are highly correlated with M* and NUV -
r and are also dependent on LSS type as well as local density. Low-mass
galaxies tend to be younger and have lower metallicity in low-density
environments while high-mass galaxies are less affected by environment.
Title: SDSS-IV MaNGA: A Serendipitous Observation of a Potential
Gas Accretion Event
Authors: Cheung, Edmond; Stark, David V.; Huang, Song; Rubin, Kate
H. R.; Lin, Lihwai; Tremonti, Christy; Zhang, Kai; Yan, Renbin;
Bizyaev, Dmitry; Boquien, Médéric; Brownstein, Joel R.; Drory, Niv;
Gelfand, Joseph D.; Knapen, Johan H.; Maiolino, Roberto; Malanushenko,
Olena; Masters, Karen L.; Merrifield, Michael R.; Pace, Zach; Pan,
Kaike; Riffel, Rogemar A.; Roman-Lopes, Alexandre; Rujopakarn, Wiphu;
Schneider, Donald P.; Stott, John P.; Thomas, Daniel; Weijmans,
Anne-Marie
Bibcode: 2016ApJ...832..182C
Altcode: 2016arXiv160902155C
The nature of warm, ionized gas outside of galaxies may illuminate
several key galaxy evolutionary processes. A serendipitous observation
by the MaNGA survey has revealed a large, asymmetric Hα complex with
no optical counterpart that extends ≈8″ (≈6.3 kpc) beyond the
effective radius of a dusty, starbursting galaxy. This Hα extension is
approximately three times the effective radius of the host galaxy and
displays a tail-like morphology. We analyze its gas-phase metallicities,
gaseous kinematics, and emission-line ratios and discuss whether this
Hα extension could be diffuse ionized gas, a gas accretion event,
or something else. We find that this warm, ionized gas structure is
most consistent with gas accretion through recycled wind material,
which could be an important process that regulates the low-mass end
of the galaxy stellar mass function.
Title: Observations and Orbits of Comets
Authors: Bacci, P.; Rossi, E.; Tesi, L.; Fagioli, G.; Casali, M.;
Coffano, A.; Marinello, W.; Micheli, M.; Pizzetti, G.; Jaeger, M.;
Prosperi, E.; Vollmann, W.; Naves, R.; Campas, M.; Hasubick, W.;
Scotti, J. V.; Kadota, K.; Abe, H.; Rodriguez, D.; Sarneczky, K.;
Szalai, T.; Kelemen, J.; Kashuba, V.; Gorbanev, Y.; Podlesnyak, S.;
Zhukov, V.; Stogneeva, I.; Baransky, A.; Larson, S. M.; Johnson, J. A.;
Christensen, E. J.; Gibbs, A. R.; Grauer, A. D.; Hill, R. E.; Kowalski,
R. A.; Shelly, F. C.; Brewington, H.; Dembicky, J.; Harvanek, M.;
Ketzeback, B.; Long, D.; Pan, K.; Malanushenko, O.; McMillan, R.;
Snedden, S.; Watters, S.; Krzesinski, J.; Nitta, A.; Kleinman, S.;
Durig, D. T.; Roberts, C. A.; Carlson, B. A.; Vidal, J. R.; Dupouy,
P.; de Vanssay, J. B.; James, N.; Storey, D.; Cozzi, E.; Klotz, A.;
Kugel, F.; Nicolas, J.; Aymami, J. M.; Linder, J.; Overhaus, C.;
Bosch, J. M.; Olivera, R.; Martignoni, M.; Bryssinck, E.; Soulier,
J. -F.; Matkin, A.; Diepvens, A.; Aledo, J.; Shurpakov, S.; Dangl,
G.; Gaitan, J.; Lipunov, V.; Tiurina, N.; Balanutsa, P.; Gorbovskoy,
E.; Kornilov, V.; Shatskiy, N.; Chazov, V.; Kuznetsov, A.; Zimnukhov,
D.; Yurkov, V.; Varda, D.; Sinyakov, E.; Krushinsky, V.; Zalozhnih,
I.; Popov, A.; Ivanov, K.; Budnev, N.; Konstantinov, E.; Chuvalaev,
O.; Poleshchuk, V.; Gress, O.; Tlatov, A.; Dormidontov, D.; Senik,
V.; Shumkov, V.; Punanova, A.; Denisenko, D.; Zhao, H. B.; Li,
B.; Xia, Y.; Zhaori, G.; Hong, R. Q.; Hu, L. F.; Lu, H.; Ohshima,
Y.; Sugiyama, Y.; Hills, K.; Takahashi, T.; Herald, D.; Oey, J.;
Camilleri, P.; Williams, H.; Drummond, J.; Primak, N.; Schultz, A.;
Goggia, T.; Willman, M.; Bergero, S.; Novichonok, A.; Suzuki, M.;
Prystavski, T.; Elenin, L.; Savanevych, V.; Bryukhovetskiy, A.; Hug,
G.; Sherrod, P. C.; Bell, C.; Chapman, A.; Diaz, N. D.; Waszczak, A.;
Masek, M.; Cerny, J.; Ebr, J.; Prouza, M.; Kubanek, P.; Jelinek, M.;
Honkova, K.; Jurysek, J.; Ebrova, I.; Janecek, P.; Lozano, J.; Martin,
J. L.; Buczynski, D.; Paul, N.; Limon, F.; Hernandez, J. F.; Pinilla,
F. G.; Garcia, F.; Arce, E.; Loudeche, A.; Arnold, L.; Furgoni, R.;
Brosio, A.; Benishek, V.; Vintdevara, C.; Liu, J.; Sato, H.; Urbanik,
M.; Tilley, S. M.; Maury, A.; G Bosch, J.; Noel, T.; Jacques, C.;
Pimentel, E.; Barros, J.; Linan, G.
Bibcode: 2014MPEC....F...39B
Altcode:
No abstract at ADS
Title: The clustering of galaxies at z ≈ 0.5 in the SDSS-III Data
Release 9 BOSS-CMASS sample: a test for the ΛCDM cosmology
Authors: Nuza, Sebastián E.; Sánchez, Ariel G.; Prada, Francisco;
Klypin, Anatoly; Schlegel, David J.; Gottlöber, Stefan; Montero-Dorta,
Antonio D.; Manera, Marc; McBride, Cameron K.; Ross, Ashley J.;
Angulo, Raul; Blanton, Michael; Bolton, Adam; Favole, Ginevra;
Samushia, Lado; Montesano, Francesco; Percival, Will J.; Padmanabhan,
Nikhil; Steinmetz, Matthias; Tinker, Jeremy; Skibba, Ramin; Schneider,
Donald P.; Guo, Hong; Zehavi, Idit; Zheng, Zheng; Bizyaev, Dmitry;
Malanushenko, Olena; Malanushenko, Viktor; Oravetz, Audrey E.; Oravetz,
Daniel J.; Shelden, Alaina C.
Bibcode: 2013MNRAS.432..743N
Altcode: 2012arXiv1202.6057N
We present results on the clustering of 282 068 galaxies in the Baryon
Oscillation Spectroscopic Survey (BOSS) sample of massive galaxies
with redshifts 0.4 < z < 0.7 which is part of the Sloan Digital
Sky Survey III project. Our results cover a large range of scales
from ∼500 to ∼90 h-1 Mpc. We compare these estimates
with the expectations of the flat Λ cold dark matter (ΛCDM) standard
cosmological model with parameters compatible with Wilkinson Microwave
Anisotropy Probe 7 data. We use the MultiDark cosmological simulation,
one of the largest N-body runs presently available, together with a
simple halo abundance matching technique, to estimate galaxy correlation
functions, power spectra, abundance of subhaloes and galaxy biases. We
find that the ΛCDM model gives a reasonable description to the observed
correlation functions at z ≈ 0.5, which is remarkably good agreement
considering that the model, once matched to the observed abundance of
BOSS galaxies, does not have any free parameters. However, we find
a ≳10 per cent deviation in the correlation functions for scales
≲ 1 and ∼10-40 h-1 Mpc. A more realistic abundance
matching model and better statistics from upcoming observations are
needed to clarify the situation. We also estimate that about 12 per
cent of the `galaxies' in the abundance-matched sample are satellites
inhabiting central haloes with mass M ≳ 1014 h-1
M⊙. Using the MultiDark simulation, we also study the
real-space halo bias b of the matched catalogue finding that b = 2.00
± 0.07 at large scales, consistent with the one obtained using the
measured BOSS-projected correlation function. Furthermore, the linear
large-scale bias, defined using the extrapolated linear matter power
spectrum, depends on the number density n of the abundance-matched
sample as b = -0.048 - (0.594 ± 0.02)log10(n/ h3
Mpc-3). Extrapolating these results to baryon acoustic
oscillation scales, we measure a scale-dependent damping of the acoustic
signal produced by non-linear evolution that leads to ∼2-4 per cent
dips at ≳ 3σ level for wavenumbers k ≳ 0.1 h Mpc-1
in the linear large-scale bias.
Title: Minor Planet Observations [705 Apache Point]
Authors: Sarneczky, K.; Kurti, S.; Brewington, H.; Dembicky, J.;
Harvanek, M.; Ketzeback, B.; Long, D.; Pan, K.; Malanushenko, O.;
Malanushenko, V.; McMillan, R.; Snedden, S.; Watters, S.
Bibcode: 2012MPC..78045...1S
Altcode:
No abstract at ADS
Title: Minor Planet Observations [705 Apache Point]
Authors: Sarneczky, K.; Brewington, H.; Dembicky, J.; Harvanek, M.;
Ketzeback, B.; Long, D.; Pan, K.; Malanushenko, O.; Malanushenko,
V.; McMillan, R.; Snedden, S.; Watters, S.
Bibcode: 2011MPC..76441...1S
Altcode:
No abstract at ADS
Title: Minor Planet Observations [705 Apache Point]
Authors: Sarneczky, K.; Brewington, H.; Dembicky, J.; Harvanek, M.;
Ketzeback, B.; Long, D.; Pan, K.; Malanushenko, O.; Malanushenko,
V.; McMillan, R.; Snedden, S.; Watters, S.
Bibcode: 2011MPC..75938...1S
Altcode:
No abstract at ADS
Title: Minor Planet Observations [705 Apache Point]
Authors: Esquerdo, G. A.; Sarneczky, K.; Kurti, S.; Brewington,
H.; Dembicky, J.; Harvanek, M.; Ketzeback, B.; Long, D.; Pan, K.;
Malanushenko, O.; Malanushenko, V.; McMillan, R.; Snedden, S.;
Watters, S.
Bibcode: 2011MPC..75622...1E
Altcode:
No abstract at ADS
Title: Minor Planet Observations [705 Apache Point]
Authors: Sarneczky, K.; Brewington, H.; Dembicky, J.; Harvanek, M.;
Ketzeback, B.; Long, D.; Pan, K.; Malanushenko, O.; Malanushenko, V.;
McMillan, R.; Snedden, S.; Watters, S.; Krzesinski, J.; Malanushenko,
E.; Barentine, J.; Lampeitl, H.
Bibcode: 2011MPC..75441...1S
Altcode:
No abstract at ADS
Title: Observations and Orbits of Comets
Authors: Tesi, L.; Bacci, P.; Fagioli, G.; Bacci, R.; Casali, M.;
Coffano, A.; Marinello, W.; Micheli, M.; Pizzetti, G.; Cernis, K.;
Zdanavicius, J.; Maskoliunas, M.; Haver, R.; Foglia, S.; Galli, G.;
Buzzi, L.; Naves, R.; Campas, M.; Hasubick, W.; Donati, S.; McAndrew,
S. G.; Sanchez C., A.; Donato, L.; Gonano, V.; Travagini, M.; Bill, H.;
Baransky, A.; Buriev, A.; Ponomarenko, V.; Scotti, J. V.; Kowalski,
R. A.; Ahern, J. D.; Beshore, E. C.; Boattini, A.; Garradd, G. J.;
Gibbs, A. R.; Tricarico, P.; Grauer, A. D.; Hill, R. E.; Larson,
S. M.; McNaught, R. H.; Blythe, M.; Spitz, G.; Brungard, R.; Paige,
J.; Festler, P.; McVey, T.; Valdivia, A.; Brewington, H.; Dembicky,
J.; Harvanek, M.; Ketzeback, B.; Long, D.; Pan, K.; Malanushenko, O.;
McMillan, R.; Snedden, S.; Watters, S.; Sarneczky, K.; Durig, D. T.;
Uriostegui, J. R.; Danusantoso, J. F.; Kharel, S.; Duenas, D. E.;
Rice, A. C.; Vasquez, J. A.; Murphree, C. L.; Koury, E. S.; Castellano,
J.; Ferrando, R.; Vidal, J. R.; Baldris, F.; Kocher, P.; Jaeger, M.;
Prosperi, E.; Vollmann, W.; Rinner, C.; Kugel, F.; Nicolas, J.; Bel,
J.; Borghini, W.; Bryssinck, E.; Sachot, G.; Soulier, J. F.; Diepvens,
A.; Dangl, G.; Hills, K.; Takahashi, T.; Novichonok, A.; Baroni, S.;
Concari, P.; Tombelli, M.; Chestnov, D.; Sato, H.; Herald, D.; Lister,
T.; Guido, E.; Howes, N.; Sostero, G.; McCormick, J.; Primak, N.;
Schultz, A.; Thiel, J.; Goggia, T.; Glinos, T.; Plaksa, S.; Elenin,
L.; Hall-Angel Peaks Observatory, J.; Hall, J.; Holmes, R.; Vorobjov,
T.; Linder, T.; Mills, M.; Hug, G.; Sherrod, P. C.; Bell, C.; Jehin,
E.; Manfroid, J.; Gillon, M.; Hutsemekers, D.; Magain, P.; Limon,
F.; Gonzalez, J.; Pena Ciriza, F.; Del Maes, A.; Hernandez, J. F.;
Garcia, F.; Fletcher, J.; Climent, T.; Williams, G. V.
Bibcode: 2011MPEC....N...13T
Altcode:
No abstract at ADS
Title: Comet Observations [705 Apache Point]
Authors: Brewington, H.; Dembicky, J.; Harvanek, M.; Ketzeback, B.;
Long, D.; Pan, K.; Malanushenko, O.; Malanushenko, V.; McMillan, R.;
Snedden, S.; Watters, S.; Sarneczky, K.
Bibcode: 2011MPC..75358...8B
Altcode:
No abstract at ADS
Title: Observations and Orbits of Comets
Authors: Tesi, L.; Bacci, P.; Fagioli, G.; Gajdos, S.; Buzzi, L.;
Naves, R.; Campas, M.; Kadota, K.; Klein, M.; Jung, M.; Feger, F.;
Bill, H.; Blythe, M.; Spitz, G.; Brungard, R.; Paige, J.; Festler,
P.; McVey, T.; Valdivia, A.; Brewington, H.; Dembicky, J.; Harvanek,
M.; Ketzeback, B.; Long, D.; Pan, K.; Malanushenko, O.; McMillan, R.;
Snedden, S.; Watters, S.; Sarneczky, K.; Durig, D. T.; Uriostegui,
J. R.; Tran, J. T.; Nichols, E. M.; Strickland, T. D.; Torres Perez,
J. A.; Murp, C. L.; Essix, G. V.; Williams, K. A.; Morris, T. A.; Rice,
A. C.; Va, J. A.; Duenas, D. E.; Kharel, S.; Grishaw, A. C.; Emerson,
S. E.; Guhlin, A. R.; Edman, J. R.; Johnson, E. C.; Danusantoso,
J. F.; Castellano, J.; Vidal, J. R.; Baldris, F.; Salto, J. L.;
Salto, A.; Jaeger, M.; Prosperi, E.; Vollmann, W.; Rinner, C.; Kugel,
F.; Nicolas, J.; Noel, T.; Hills, K.; Takahashi, T.; Bryssinck, E.;
Plaksa, S.; McNaught, R. H.; Ahern, J. D.; Beshore, E. C.; Boattini,
A.; Garradd, G. J.; Gibbs, A. R.; Grauer, A. D.; Hill, R. E.; Kowalski,
R. A.; Larson, S. M.; Lister, T.; Fulton, B. J.; Dymock, R.; Sato,
H.; Ligustri, R.; Chestnov, D.; Novichonok, A.; Elenin, L.; Hall, J.;
Sherrod, P. C.; Bell, C.; Limon, F.; Gonzalez, J.; Busch, M.; Drefke,
A.; Geffert, P.; Koschny, D.; Kracht, R.; Kresken, R.; Hernandez,
J. F.; Garcia, F.; Climent, T.
Bibcode: 2011MPEC....M...31T
Altcode:
No abstract at ADS
Title: Minor Planet Observations [705 Apache Point]
Authors: Esquerdo, G. A.; Brewington, H.; Dembicky, J.; Harvanek,
M.; Ketzeback, B.; Long, D.; Pan, K.; Malanushenko, O.; Malanushenko,
V.; McMillan, R.; Snedden, S.; Watters, S.; Sarneczky, K.
Bibcode: 2011MPC..73216...1E
Altcode:
No abstract at ADS
Title: Discovery of a Low-mass Companion to a Metal-rich F Star with
the MARVELS Pilot Project
Authors: Fleming, Scott W.; Ge, Jian; Mahadevan, Suvrath; Lee, Brian;
Eastman, Jason D.; Siverd, Robert J.; Gaudi, B. Scott; Niedzielski,
Andrzej; Sivarani, Thirupathi; Stassun, Keivan G.; Wolszczan, Alex;
Barnes, Rory; Gary, Bruce; Nguyen, Duy Cuong; Morehead, Robert C.;
Wan, Xiaoke; Zhao, Bo; Liu, Jian; Guo, Pengcheng; Kane, Stephen R.;
van Eyken, Julian C.; De Lee, Nathan M.; Crepp, Justin R.; Shelden,
Alaina C.; Laws, Chris; Wisniewski, John P.; Schneider, Donald P.;
Pepper, Joshua; Snedden, Stephanie A.; Pan, Kaike; Bizyaev, Dmitry;
Brewington, Howard; Malanushenko, Olena; Malanushenko, Viktor; Oravetz,
Daniel; Simmons, Audrey; Watters, Shannon
Bibcode: 2010ApJ...718.1186F
Altcode: 2010arXiv1006.1627F
We report the discovery of a low-mass companion orbiting the metal-rich,
main sequence F star TYC 2949-00557-1 during the Multi-object APO Radial
Velocity Exoplanet Large-area Survey (MARVELS) pilot project. The host
star has an effective temperature T eff = 6135 ± 40 K,
logg = 4.4 ± 0.1, and [Fe/H] = 0.32 ± 0.01, indicating a mass of M =
1.25 ± 0.09 M sun and R = 1.15 ± 0.15 R sun. The
companion has an orbital period of 5.69449 ± 0.00023 days and straddles
the hydrogen burning limit with a minimum mass of 64 MJ ,
and thus may be an example of the rare class of brown dwarfs orbiting
at distances comparable to those of "Hot Jupiters." We present relative
photometry that demonstrates that the host star is photometrically
stable at the few millimagnitude level on time scales of hours to years,
and rules out transits for a companion of radius gsim0.8 RJ
at the 95% confidence level. Tidal analysis of the system suggests that
the star and companion are likely in a double synchronous state where
both rotational and orbital synchronization have been achieved. This is
the first low-mass companion detected with a multi-object, dispersed,
fixed-delay interferometer.
Title: Minor Planet Observations [705 Apache Point]
Authors: Sarneczky, K.; Brewington, H.; Dembicky, J.; Harvanek, M.;
Ketzeback, B.; Long, D.; Pan, K.; Malanushenko, O.; Malanushenko,
V.; McMillan, R.; Snedden, S.; Watters, S.
Bibcode: 2010MPC..71575...1S
Altcode:
No abstract at ADS
Title: Statistical Feature Recognition for Multidimensional Solar
Imagery
Authors: Turmon, Michael; Jones, Harrison P.; Malanushenko, Olena V.;
Pap, Judit M.
Bibcode: 2010SoPh..262..277T
Altcode: 2010SoPh..tmp...52T
A maximum a posteriori (MAP) technique is developed to identify solar
features in cotemporal and cospatial images of line-of-sight magnetic
flux, continuum intensity, and equivalent width observed with the
NASA/National Solar Observatory (NSO) Spectromagnetograph (SPM). The
technique facilitates human understanding of patterns in large data
sets and enables systematic studies of feature characteristics for
comparison with models and observations of long-term solar activity
and variability. The method uses Bayes' rule to compute the posterior
probability of any feature segmentation of a trio of observed
images from per-pixel, class-conditional probabilities derived from
independently-segmented training images. Simulated annealing is used
to find the most likely segmentation. New algorithms for computing
class-conditional probabilities from three-dimensional Gaussian
mixture models and interpolated histogram densities are described and
compared. A new extension to the spatial smoothing in the Bayesian
prior model is introduced, which can incorporate a spatial dependence
such as center-to-limb variation. How the spatial scale of training
segmentations affects the results is discussed, and a new method for
statistical separation of quiet Sun and quiet network is presented.
Title: Analysis of Ca II 8542 Å scanning spectroscopy for statistical
feature recognition.
Authors: Malanushenko, O.; Jones, H.; Turmon, M.; Pap, J.
Bibcode: 2010MmSAI..81..801M
Altcode:
Previously, we used Bayesian methods to recognize active regions (AR),
enhanced magnetic network (EN), and sunspots (SS) in National Solar
Observatory/Kitt Peak Vacuum Telescope synoptic observations. In this
paper we study imaging spectroscopy of the chromospheric Ca II 8542
Å and photospheric Fe I 8688 Å lines to improve separation of ARs
and EN. We find that correlation plots between Ca line-center and ±
0.45 Å line-wing intensities show two identifiable but overlapping
distributions. The first includes ARs (bright and faint) and the second
includes ENs, network, and moat (``quiet Sun''). Active and Quiet
distributions overlap in areas of EN and faint AR, so that feature
identification using thresholds is unreliable. The statistical
methodology of our previous work, however, is particularly well
suited for distinguishing features with such partially overlapping
distributions. Additionally, we find features in the Ca line which
are not visible in the Fe observations, including a dark moat around
an AR and narrow dark points associated with network and strong
line-of-sight flows.
Title: The Seventh Data Release of the Sloan Digital Sky Survey
Authors: Abazajian, Kevork N.; Adelman-McCarthy, Jennifer K.; Agüeros,
Marcel A.; Allam, Sahar S.; Allende Prieto, Carlos; An, Deokkeun;
Anderson, Kurt S. J.; Anderson, Scott F.; Annis, James; Bahcall,
Neta A.; Bailer-Jones, C. A. L.; Barentine, J. C.; Bassett, Bruce
A.; Becker, Andrew C.; Beers, Timothy C.; Bell, Eric F.; Belokurov,
Vasily; Berlind, Andreas A.; Berman, Eileen F.; Bernardi, Mariangela;
Bickerton, Steven J.; Bizyaev, Dmitry; Blakeslee, John P.; Blanton,
Michael R.; Bochanski, John J.; Boroski, William N.; Brewington,
Howard J.; Brinchmann, Jarle; Brinkmann, J.; Brunner, Robert J.;
Budavári, Tamás; Carey, Larry N.; Carliles, Samuel; Carr, Michael
A.; Castander, Francisco J.; Cinabro, David; Connolly, A. J.; Csabai,
István; Cunha, Carlos E.; Czarapata, Paul C.; Davenport, James R. A.;
de Haas, Ernst; Dilday, Ben; Doi, Mamoru; Eisenstein, Daniel J.;
Evans, Michael L.; Evans, N. W.; Fan, Xiaohui; Friedman, Scott D.;
Frieman, Joshua A.; Fukugita, Masataka; Gänsicke, Boris T.; Gates,
Evalyn; Gillespie, Bruce; Gilmore, G.; Gonzalez, Belinda; Gonzalez,
Carlos F.; Grebel, Eva K.; Gunn, James E.; Györy, Zsuzsanna; Hall,
Patrick B.; Harding, Paul; Harris, Frederick H.; Harvanek, Michael;
Hawley, Suzanne L.; Hayes, Jeffrey J. E.; Heckman, Timothy M.; Hendry,
John S.; Hennessy, Gregory S.; Hindsley, Robert B.; Hoblitt, J.; Hogan,
Craig J.; Hogg, David W.; Holtzman, Jon A.; Hyde, Joseph B.; Ichikawa,
Shin-ichi; Ichikawa, Takashi; Im, Myungshin; Ivezić, Željko;
Jester, Sebastian; Jiang, Linhua; Johnson, Jennifer A.; Jorgensen,
Anders M.; Jurić, Mario; Kent, Stephen M.; Kessler, R.; Kleinman,
S. J.; Knapp, G. R.; Konishi, Kohki; Kron, Richard G.; Krzesinski,
Jurek; Kuropatkin, Nikolay; Lampeitl, Hubert; Lebedeva, Svetlana; Lee,
Myung Gyoon; Lee, Young Sun; French Leger, R.; Lépine, Sébastien;
Li, Nolan; Lima, Marcos; Lin, Huan; Long, Daniel C.; Loomis, Craig P.;
Loveday, Jon; Lupton, Robert H.; Magnier, Eugene; Malanushenko, Olena;
Malanushenko, Viktor; Mandelbaum, Rachel; Margon, Bruce; Marriner,
John P.; Martínez-Delgado, David; Matsubara, Takahiko; McGehee,
Peregrine M.; McKay, Timothy A.; Meiksin, Avery; Morrison, Heather
L.; Mullally, Fergal; Munn, Jeffrey A.; Murphy, Tara; Nash, Thomas;
Nebot, Ada; Neilsen, Eric H., Jr.; Newberg, Heidi Jo; Newman, Peter
R.; Nichol, Robert C.; Nicinski, Tom; Nieto-Santisteban, Maria; Nitta,
Atsuko; Okamura, Sadanori; Oravetz, Daniel J.; Ostriker, Jeremiah P.;
Owen, Russell; Padmanabhan, Nikhil; Pan, Kaike; Park, Changbom; Pauls,
George; Peoples, John, Jr.; Percival, Will J.; Pier, Jeffrey R.; Pope,
Adrian C.; Pourbaix, Dimitri; Price, Paul A.; Purger, Norbert; Quinn,
Thomas; Raddick, M. Jordan; Re Fiorentin, Paola; Richards, Gordon
T.; Richmond, Michael W.; Riess, Adam G.; Rix, Hans-Walter; Rockosi,
Constance M.; Sako, Masao; Schlegel, David J.; Schneider, Donald P.;
Scholz, Ralf-Dieter; Schreiber, Matthias R.; Schwope, Axel D.; Seljak,
Uroš; Sesar, Branimir; Sheldon, Erin; Shimasaku, Kazu; Sibley, Valena
C.; Simmons, A. E.; Sivarani, Thirupathi; Allyn Smith, J.; Smith,
Martin C.; Smolčić, Vernesa; Snedden, Stephanie A.; Stebbins, Albert;
Steinmetz, Matthias; Stoughton, Chris; Strauss, Michael A.; SubbaRao,
Mark; Suto, Yasushi; Szalay, Alexander S.; Szapudi, István; Szkody,
Paula; Tanaka, Masayuki; Tegmark, Max; Teodoro, Luis F. A.; Thakar,
Aniruddha R.; Tremonti, Christy A.; Tucker, Douglas L.; Uomoto, Alan;
Vanden Berk, Daniel E.; Vandenberg, Jan; Vidrih, S.; Vogeley, Michael
S.; Voges, Wolfgang; Vogt, Nicole P.; Wadadekar, Yogesh; Watters,
Shannon; Weinberg, David H.; West, Andrew A.; White, Simon D. M.;
Wilhite, Brian C.; Wonders, Alainna C.; Yanny, Brian; Yocum, D. R.;
York, Donald G.; Zehavi, Idit; Zibetti, Stefano; Zucker, Daniel B.
Bibcode: 2009ApJS..182..543A
Altcode: 2008arXiv0812.0649A
This paper describes the Seventh Data Release of the Sloan Digital
Sky Survey (SDSS), marking the completion of the original goals of
the SDSS and the end of the phase known as SDSS-II. It includes 11,663
deg2 of imaging data, with most of the ~2000 deg2
increment over the previous data release lying in regions of low
Galactic latitude. The catalog contains five-band photometry for 357
million distinct objects. The survey also includes repeat photometry
on a 120° long, 2fdg5 wide stripe along the celestial equator in
the Southern Galactic Cap, with some regions covered by as many as
90 individual imaging runs. We include a co-addition of the best of
these data, going roughly 2 mag fainter than the main survey over
250 deg2. The survey has completed spectroscopy over
9380 deg2 the spectroscopy is now complete over a large
contiguous area of the Northern Galactic Cap, closing the gap that
was present in previous data releases. There are over 1.6 million
spectra in total, including 930,000 galaxies, 120,000 quasars, and
460,000 stars. The data release includes improved stellar photometry
at low Galactic latitude. The astrometry has all been recalibrated
with the second version of the USNO CCD Astrograph Catalog, reducing
the rms statistical errors at the bright end to 45 milliarcseconds
per coordinate. We further quantify a systematic error in bright
galaxy photometry due to poor sky determination; this problem is less
severe than previously reported for the majority of galaxies. Finally,
we describe a series of improvements to the spectroscopic reductions,
including better flat fielding and improved wavelength calibration at
the blue end, better processing of objects with extremely strong narrow
emission lines, and an improved determination of stellar metallicities.
Title: Training Sets for Statistical Feature Recognition in
Multidimensional Solar Imagery
Authors: Jones, Harrison P.; Turmon, M. J.; Malanushenko, O. V.; Pap,
J. M.
Bibcode: 2009SPD....40.1518J
Altcode:
We have previously reported the multi-dimensional extension of a
statistical maximum likelihood algorithm for segmenting images into
different feature classes developed by Turmon, Pap, and Mukhtar
(2002, ApJ 568, p. 396). The method works best for features which
have overlapping but nonetheless distinct distributions of observed
variables. Developing these empirical class-conditional distributions
from independently classified training sets depends sensitively on
the match of spatial scales between the training segmentations and
the desired feature classes. We discuss recent progress in extracting
well-posed class distributions even when the training segmentations
are mixtures of the classes which we wish to identify. For example,
in addition to large-scale labelings, Harvey and White (1999, ApJ
515, p. 812) provide finely grained information which we use to help
isolate areas of pure quiet Sun. Quiet Sun distributions of observed
quantities can then be separated from distributions derived from
areas labeled as network which also include quiet Sun. Similarly,
these distributions can then be isolated from those mixed with active
regions and/or sunspots. This research is funded by a NASA Supporting
Research and Technology grant.
Title: SEGUE: A Spectroscopic Survey of 240,000 Stars with g = 14-20
Authors: Yanny, Brian; Rockosi, Constance; Newberg, Heidi Jo; Knapp,
Gillian R.; Adelman-McCarthy, Jennifer K.; Alcorn, Bonnie; Allam,
Sahar; Allende Prieto, Carlos; An, Deokkeun; Anderson, Kurt S. J.;
Anderson, Scott; Bailer-Jones, Coryn A. L.; Bastian, Steve; Beers,
Timothy C.; Bell, Eric; Belokurov, Vasily; Bizyaev, Dmitry; Blythe,
Norm; Bochanski, John J.; Boroski, William N.; Brinchmann, Jarle;
Brinkmann, J.; Brewington, Howard; Carey, Larry; Cudworth, Kyle
M.; Evans, Michael; Evans, N. W.; Gates, Evalyn; Gänsicke, B. T.;
Gillespie, Bruce; Gilmore, Gerald; Nebot Gomez-Moran, Ada; Grebel, Eva
K.; Greenwell, Jim; Gunn, James E.; Jordan, Cathy; Jordan, Wendell;
Harding, Paul; Harris, Hugh; Hendry, John S.; Holder, Diana; Ivans,
Inese I.; Ivezič, Željko; Jester, Sebastian; Johnson, Jennifer
A.; Kent, Stephen M.; Kleinman, Scot; Kniazev, Alexei; Krzesinski,
Jurek; Kron, Richard; Kuropatkin, Nikolay; Lebedeva, Svetlana; Lee,
Young Sun; French Leger, R.; Lépine, Sébastien; Levine, Steve; Lin,
Huan; Long, Daniel C.; Loomis, Craig; Lupton, Robert; Malanushenko,
Olena; Malanushenko, Viktor; Margon, Bruce; Martinez-Delgado, David;
McGehee, Peregrine; Monet, Dave; Morrison, Heather L.; Munn, Jeffrey
A.; Neilsen, Eric H., Jr.; Nitta, Atsuko; Norris, John E.; Oravetz,
Dan; Owen, Russell; Padmanabhan, Nikhil; Pan, Kaike; Peterson, R. S.;
Pier, Jeffrey R.; Platson, Jared; Re Fiorentin, Paola; Richards,
Gordon T.; Rix, Hans-Walter; Schlegel, David J.; Schneider, Donald P.;
Schreiber, Matthias R.; Schwope, Axel; Sibley, Valena; Simmons, Audrey;
Snedden, Stephanie A.; Allyn Smith, J.; Stark, Larry; Stauffer, Fritz;
Steinmetz, M.; Stoughton, C.; SubbaRao, Mark; Szalay, Alex; Szkody,
Paula; Thakar, Aniruddha R.; Sivarani, Thirupathi; Tucker, Douglas;
Uomoto, Alan; Vanden Berk, Dan; Vidrih, Simon; Wadadekar, Yogesh;
Watters, Shannon; Wilhelm, Ron; Wyse, Rosemary F. G.; Yarger, Jean;
Zucker, Dan
Bibcode: 2009AJ....137.4377Y
Altcode: 2009arXiv0902.1781T; 2009arXiv0902.1781Y
The Sloan Extension for Galactic Understanding and Exploration (SEGUE)
Survey obtained ≈240,000 moderate-resolution (R ~ 1800) spectra from
3900 Å to 9000 Å of fainter Milky Way stars (14.0 < g < 20.3)
of a wide variety of spectral types, both main-sequence and evolved
objects, with the goal of studying the kinematics and populations of our
Galaxy and its halo. The spectra are clustered in 212 regions spaced
over three quarters of the sky. Radial velocity accuracies for stars
are \sigma (RV) \sim 4 \:km\; s^{-1} at g < 18, degrading to \sigma
(RV) \sim 15\:km\; s^{-1} at g ~ 20. For stars with signal-to-noise
ratio >10 per resolution element, stellar atmospheric parameters
are estimated, including metallicity, surface gravity, and effective
temperature. SEGUE obtained 3500 deg2 of additional
ugriz imaging (primarily at low Galactic latitudes) providing precise
multicolor photometry (σ(g, r, i) ~ 2%), (σ(u, z) ~ 3%) and astrometry
(≈0farcs1) for spectroscopic target selection. The stellar spectra,
imaging data, and derived parameter catalogs for this survey are
publicly available as part of Sloan Digital Sky Survey Data Release 7.
Title: The application of Gaussian Mixture and Histogram-based
Bayesian methods to NSO/Kitt Peak VT data.
Authors: Malanushenko, O.; Jones, H. P.; Turmon, M.; Pap, J.
Bibcode: 2008AGUFMSH13A1519M
Altcode:
We applied Gaussian Mixture and Histogram-based Bayesian methods to
recognize several solar features using Kitt Peak Vacuum Telescope
(VT) observations from 1992-2003. We used 5D observations in the
868.8 nm line including LoS magnetic field, continuum intensity,
radial velocity, line depth, and EqW. We applied the analysis for
recognition of active regions, magnetic network, and sunspots, for
the purpose of automatic recognition of solar activity, and linking
solar activity to irradiance changes. The success of such a feature
recognition process strongly depends on separation and sensitivity
of observable and derivative parameters for different features. For
some features it works very well for two kind of data, but in some
other cases the probability of correct recognition of a feature is low
without the adding complementary data. We discuss the advantages and
limitations of these statistical methods, review the importance and
possibility of using the complementary data, and compare our results
with other methods which derive feature areas. This methodological
review will help to create the strategy for new SDO/HMI analysis.
Title: Feature Classification of NSO/Kitt Peak Magnetograms
Authors: Malanushenko, O.; Jones, H. P.; Pap, J. M.; Turmon, M.
Bibcode: 2008AGUSMSP31B..04M
Altcode:
We present new segmentations of daily NASA/NSO Spectromagnetograph
(SPM) multidimensional magnetograms obtained at the NSO/Kitt Peak
Vacuum Telescope from 1992-2003. Full-disk images are divided into
areas of quiet Sun, network, active regions, and sunspots using a
three-dimensional adaptation of a statistical image classification
method developed by Turmon, Pap, and Mukhtar (ApJ 568:396-407,
2002). Probability distributions for each feature class are derived
from a training set of images independently segmented using thresholds
in magnetic flux and continuum intensity. We summarize our analysis
procedures and compare segmentations derived from class-conditional
probabilities computed with Gaussian mixture models and histogram
interpolation. We also compare our segmentations with features
identified by other methods and with solar irradiance variation.
Title: The Sixth Data Release of the Sloan Digital Sky Survey
Authors: Adelman-McCarthy, Jennifer K.; Agüeros, Marcel A.; Allam,
Sahar S.; Allende Prieto, Carlos; Anderson, Kurt S. J.; Anderson,
Scott F.; Annis, James; Bahcall, Neta A.; Bailer-Jones, C. A. L.;
Baldry, Ivan K.; Barentine, J. C.; Bassett, Bruce A.; Becker, Andrew
C.; Beers, Timothy C.; Bell, Eric F.; Berlind, Andreas A.; Bernardi,
Mariangela; Blanton, Michael R.; Bochanski, John J.; Boroski,
William N.; Brinchmann, Jarle; Brinkmann, J.; Brunner, Robert J.;
Budavári, Tamás; Carliles, Samuel; Carr, Michael A.; Castander,
Francisco J.; Cinabro, David; Cool, R. J.; Covey, Kevin R.; Csabai,
István; Cunha, Carlos E.; Davenport, James R. A.; Dilday, Ben; Doi,
Mamoru; Eisenstein, Daniel J.; Evans, Michael L.; Fan, Xiaohui;
Finkbeiner, Douglas P.; Friedman, Scott D.; Frieman, Joshua A.;
Fukugita, Masataka; Gänsicke, Boris T.; Gates, Evalyn; Gillespie,
Bruce; Glazebrook, Karl; Gray, Jim; Grebel, Eva K.; Gunn, James
E.; Gurbani, Vijay K.; Hall, Patrick B.; Harding, Paul; Harvanek,
Michael; Hawley, Suzanne L.; Hayes, Jeffrey; Heckman, Timothy M.;
Hendry, John S.; Hindsley, Robert B.; Hirata, Christopher M.; Hogan,
Craig J.; Hogg, David W.; Hyde, Joseph B.; Ichikawa, Shin-ichi;
Ivezić, Željko; Jester, Sebastian; Johnson, Jennifer A.; Jorgensen,
Anders M.; Jurić, Mario; Kent, Stephen M.; Kessler, R.; Kleinman,
S. J.; Knapp, G. R.; Kron, Richard G.; Krzesinski, Jurek; Kuropatkin,
Nikolay; Lamb, Donald Q.; Lampeitl, Hubert; Lebedeva, Svetlana; Lee,
Young Sun; French Leger, R.; Lépine, Sébastien; Lima, Marcos; Lin,
Huan; Long, Daniel C.; Loomis, Craig P.; Loveday, Jon; Lupton, Robert
H.; Malanushenko, Olena; Malanushenko, Viktor; Mandelbaum, Rachel;
Margon, Bruce; Marriner, John P.; Martínez-Delgado, David; Matsubara,
Takahiko; McGehee, Peregrine M.; McKay, Timothy A.; Meiksin, Avery;
Morrison, Heather L.; Munn, Jeffrey A.; Nakajima, Reiko; Neilsen,
Eric H., Jr.; Newberg, Heidi Jo; Nichol, Robert C.; Nicinski, Tom;
Nieto-Santisteban, Maria; Nitta, Atsuko; Okamura, Sadanori; Owen,
Russell; Oyaizu, Hiroaki; Padmanabhan, Nikhil; Pan, Kaike; Park,
Changbom; Peoples, John, Jr.; Pier, Jeffrey R.; Pope, Adrian C.;
Purger, Norbert; Raddick, M. Jordan; Re Fiorentin, Paola; Richards,
Gordon T.; Richmond, Michael W.; Riess, Adam G.; Rix, Hans-Walter;
Rockosi, Constance M.; Sako, Masao; Schlegel, David J.; Schneider,
Donald P.; Schreiber, Matthias R.; Schwope, Axel D.; Seljak, Uroš;
Sesar, Branimir; Sheldon, Erin; Shimasaku, Kazu; Sivarani, Thirupathi;
Allyn Smith, J.; Snedden, Stephanie A.; Steinmetz, Matthias; Strauss,
Michael A.; SubbaRao, Mark; Suto, Yasushi; Szalay, Alexander S.;
Szapudi, István; Szkody, Paula; Tegmark, Max; Thakar, Aniruddha R.;
Tremonti, Christy A.; Tucker, Douglas L.; Uomoto, Alan; Vanden Berk,
Daniel E.; Vandenberg, Jan; Vidrih, S.; Vogeley, Michael S.; Voges,
Wolfgang; Vogt, Nicole P.; Wadadekar, Yogesh; Weinberg, David H.;
West, Andrew A.; White, Simon D. M.; Wilhite, Brian C.; Yanny, Brian;
Yocum, D. R.; York, Donald G.; Zehavi, Idit; Zucker, Daniel B.
Bibcode: 2008ApJS..175..297A
Altcode: 2007arXiv0707.3413A
This paper describes the Sixth Data Release of the Sloan Digital Sky
Survey. With this data release, the imaging of the northern Galactic cap
is now complete. The survey contains images and parameters of roughly
287 million objects over 9583 deg2, including scans over
a large range of Galactic latitudes and longitudes. The survey also
includes 1.27 million spectra of stars, galaxies, quasars, and blank
sky (for sky subtraction) selected over 7425 deg2. This
release includes much more stellar spectroscopy than was available in
previous data releases and also includes detailed estimates of stellar
temperatures, gravities, and metallicities. The results of improved
photometric calibration are now available, with uncertainties of
roughly 1% in g, r, i, and z, and 2% in u, substantially better than
the uncertainties in previous data releases. The spectra in this data
release have improved wavelength and flux calibration, especially
in the extreme blue and extreme red, leading to the qualitatively
better determination of stellar types and radial velocities. The
spectrophotometric fluxes are now tied to point-spread function
magnitudes of stars rather than fiber magnitudes. This gives more robust
results in the presence of seeing variations, but also implies a change
in the spectrophotometric scale, which is now brighter by roughly 0.35
mag. Systematic errors in the velocity dispersions of galaxies have
been fixed, and the results of two independent codes for determining
spectral classifications and redshifts are made available. Additional
spectral outputs are made available, including calibrated spectra from
individual 15 minute exposures and the sky spectrum subtracted from
each exposure. We also quantify a recently recognized underestimation
of the brightnesses of galaxies of large angular extent due to poor sky
subtraction; the bias can exceed 0.2 mag for galaxies brighter than r =
14 mag.
Title: A Search for Galactic Halo and Thick Disk Planetary Nebulae
in the SDSS Footprint: First Results
Authors: Snedden, Stephanie; Oravetz, D.; Simmons, A.; Baerny, J.;
MacLeod, C.; Balick, B.; Bizyaev, D.; Brewington, H.; Malanushenko,
O.; Malanushenko, V.; Pan, K.; Watters, S.; Anderson, K.; Lutz, J.;
Kniazev, A.; Kwitter, K.; SDSS Collaboration
Bibcode: 2007AAS...21110003S
Altcode: 2007BAAS...39..911S
We present early results from a search for Galactic halo and thick
disk planetary nebulae (PNe) within the Sloan Digital Sky Survey
Data Release 6 (SDSS DR6) imaging footprint. Known PNe of high and
low excitation states cover a broad region in SDSS filter color-color
diagrams. This space overlaps the areas where white dwarfs, quasars,
A stars and emission line galaxies fall, and makes identification, from
SDSS colors alone, difficult. We describe a search strategy that employs
the SDSS colors, [O III] narrowband imaging and spectroscopy, and
present the early results of the search for PN candidates with strong
[O III] emission lines, from the first four months of observations.
Title: Application of Statistical Image Segmentation to Recognition
of Solar Magnetic Network
Authors: Jones, H. P.; Malanushenko, O. V.; Pap, J. M.; Turmon, M. J.
Bibcode: 2007AGUFMSH13A1096J
Altcode:
We have developed a statistical method for feature identification in NSO
multidimensional imagery which requires a training set of independently
determined image segmentations. The large spatial scale of our initial
training set determined by the algorithm of Harvey and White (1999, ApJ
515, p. 812) mixes the details of magnetic network which are contained
in the observations with quiet Sun and other features. We have found
it difficult to reproduce this large scale in models of conditional
and prior probabilities and are in fact interested in marking smaller
scale structures for comparison with variation of total and spectral
solar irradiance. We describe in this paper the performance of our
technique with finer scale training sets determined by observations
from other instruments and independently for the NSO data.
Title: Supernovae 2007rg and 2007sb-2007sn
Authors: Bassett, B.; Becker, A.; Bizyaev, D.; Brewington, H.; Choi,
C.; Cinabro, D.; D'Andrea, C.; Dembicky, J.; Depoy, D. L.; Dilday,
B.; Doi, M.; Eastman, J.; Frieman, J.; Garnavich, P.; Goobar, A.;
Hogan, C.; Holtzman, J.; Im, M.; Jha, S.; Kessler, R.; Ketzeback,
B.; Konishi, K.; Krzesinski, J.; Lampeitl, H.; Leloudas, G.; Long,
D.; Malanushenko, O.; Marriner, J.; McMillan, R.; Miknaitis, G.;
Morokuma, T.; Mosher, J.; Nichol, R.; Oravetz, D.; Pan, K.; Ostman,
L.; Prieto, J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.;
Schneider, D.; Simmons, A.; Smith, M.; Snedden, S.; Sollerman, J.;
Stritzinger, M.; Takanashi, N.; Tokita, K.; Taylor, M. F.; van der
Heyden, K.; Watters, S.; Yasuda, N.; Wheeler, C.; Zheng, C.; Bender,
R.; Hopp, U.; Kollatschny, W.; Assef, R.; Atlee, D.; Aragon-Salamanca,
A.; Bremer, M.; Turatto, M.; Ruiz-Lapuente, P.; Castander, F.; Romer,
A. K.; Collins, C.; Lucey, J.; Edge, A.; Wake, D.; Sullivan, M.
Bibcode: 2007CBET.1167....1B
Altcode: 2007CBET.1167A...1B
Further to CBETs 611 and 1146, B. Bassett, South African Astronomical
Observatory and University of Cape Town (UCT); A. Becker, University of
Washington (UW); D. Bizyaev and H. Brewington, Apache Point Observatory
(APO); C. Choi, Seoul National University (SNU); D. Cinabro, Wayne
State University (WSU); C. D'Andrea, University of Pennsylvania
(Penn); J. Dembicky, APO; D. L. DePoy, Ohio State University (OSU);
B. Dilday, University of Chicago (UC); M. Doi, University of Tokyo
(UoT); J. Eastman, OSU; J. Frieman, Fermilab and UC; P. Garnavich,
University of Notre Dame; A. Goobar, Stockholm University; C. Hogan,
UW; J. Holtzman, New Mexico State University; M. Im, SNU; S. Jha,
Rutgers University; R. Kessler, UC; B. Ketzeback, APO; K. Konishi,
UoT; J. Krzesinski, APO; H. Lampeitl, University of Portsmouth
(UP); G. Leloudas, Dark Cosmology Centre; D. Long, O. Malanushenko,
and V. Malanushenko, APO; J. Marriner, Fermilab; R. McMillan, APO;
G. Miknaitis, Fermilab; T. Morokuma, National Astronomical Observatory
of Japan; J. Mosher, Penn; R. Nichol, UP; D. Oravetz and K. Pan, APO;
L. Ostman, Stockholm University; J. L. Prieto, OSU; M. Richmond,
Rochester Institute of Technology; A. Riess, Space Telescope
Science Institute; R. Romani, Stanford University (SU); M. Sako,
Penn; D. Schneider, Pennsylvania State University; A. Simmons, APO;
M. Smith, UP; S. Snedden, APO; J. Sollerman and M. Stritzinger, Dark
Cosmology Centre; N. Takanashi and K. Tokita, UoT; M. F. Taylor, WSU;
K. van der Heyden, UCT; S. Watters, APO; N. Yasuda, UoT; C. Wheeler,
University of Texas; and C. Zheng, SU, on behalf of the Sloan Digital
Sky Survey II collaboration, report the discovery of thirteen type-Ia
supernovae on g, r, and i images taken with the SDSS 2.5-m telescope
at APO by the SDSS observing team. R. Romani, C. Zheng, M. Sako,
C. Wheeler, D. Schneider, and R. Bender, together with and U. Hopp
(University of Munich) and W. Kollatschny (University of Goettingen),
report confirming spectroscopy that was obtained at the Hobby-Eberly
Telescope on on Nov. 5 and 9 UT for 2007sc and 2007sk, and on Nov. 17
for 2007sb. J. L. Prieto and D. DePoy report confirming spectroscopy
for 2007sh and 2007si that was obtained by R. Assef and D. Atlee
(OSU) on the Hiltner 2.4-m telescope at MDM Observatory on Nov. 23
and 25. A. Aragon-Salamanca (University of Nottingham), M. Bremer
(University of Bristol), M. Turatto (University of Padova), A. Goobar,
R. Nichol, J. Sollerman, P. Ruiz-Lapuente (University of Barcelona),
F. Castander (ICE/CSIC, Barcelona), A. K. Romer (University of
Sussex), C. Collins (Liverpool John Moores University), and J. Lucey
and A. Edge (University of Durham) report confirming spectroscopy of
2007sl and 2007sm that was obtained by D. Wake (Durham) on Dec. 3 at
the William Herschel 4.2-m telescope, and confirming spectroscopy for
2007sd, 2007se, 2007sf, 2007sg, 2007sj, and 2007sn that was obtained
by M. Smith and A. K. Romer on Dec. 7, 8, and 9 at the European
Southern Observatory's New Technology Telescope. The discovery
magnitudes tabulated below are all g magnitudes; spectroscopic
redshifts are given in the column labelled z. Peak dates (all 2007)
are approximate estimates from fits to the early light curves, with a
typical uncertainty of plus-or-minus two days. SN Discov. R.A. (2000.0)
Decl. Mag. z Estimated Type Date UT Peak Date 2007sb Oct. 11 0 41
23.75 + 0 24 43.0 22.0 0.21 Oct. 20 Ia 2007sc Nov. 11 2 15 11.87 +
0 32 09.3 22.1 0.27 Nov. 20 Ia 2007sd Nov. 11 3 32 00.58 - 0 39 42.7
21.0 0.09 Nov. 21 IIP 2007se Nov. 12 22 12 37.10 + 0 47 48.2 22.3
0.18 Nov. 27 Ia 2007sf Nov. 12 22 48 59.11 + 1 12 21.9 22.3 0.10
Nov. 29 Ia 2007sg Nov. 12 23 19 26.09 - 0 54 05.9 22.7 0.19 Nov. 28
Ia 2007sh Nov. 12 0 29 24.67 + 0 49 53.4 21.2 0.15 Nov. 26 Ia 2007si
Nov. 12 1 59 51.14 + 1 12 59.3 20.8 0.13 Nov. 22 Ia 2007sj Nov. 17 0 10
39.63 - 0 03 10.2 21.2 0.04 Nov. 29 Ib/c 2007sk Nov. 17 1 27 05.25 +
1 12 54.5 21.9 0.23 Nov. 27 II 2007sl Nov. 17 21 13 42.82 - 0 50 16.0
21.3 0.10 Dec. 5 Ia 2007sm Nov. 27 21 22 50.57 + 0 25 17.9 20.4 0.06
Dec. 14 Ia 2007sn Nov. 27 22 14 04.42 - 0 12 47.5 21.3 0.14 Dec. 11 Ia
Corrigendum. Re-analysis of the spectrum of 2007rg (cf. CBET 1146) by
M. Sullivan (University of Oxford) indicates that its redshift is 0.27.
Title: Supernovae 2007qz and 2007rc-2007rs
Authors: Bassett, B.; Becker, A.; Bizyaev, D.; Brewington, H.; Choi,
C.; Cinabro, D.; D'Andrea, C.; Dembicky, J.; Depoy, D. L.; Dilday,
B.; Doi, M.; Eastman, J.; Frieman, J.; Garnavich, P.; Goobar, A.;
Hogan, C.; Holtzman, J.; Im, M.; Jha, S.; Kessler, R.; Ketzeback, B.;
Konishi, K.; Krzesinski, J.; Lampeitl, H.; Leloudas, G.; Long, D.;
Malanushenko, O.; Marriner, J.; McMillan, R.; Miknaitis, G.; Morokuma,
T.; Mosher, J.; Nichol, R.; Oravetz, D.; Pan, K.; Ostman, L.; Prieto,
J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Schneider, D.;
Simmons, A.; Smith, M.; Snedden, S.; Sollerman, J.; Stritzinger, M.;
Takanashi, N.; Tokita, K.; Taylor, M. F.; van der Heyden, K.; Watters,
S.; Yasuda, N.; Wheeler, C.; Zheng, C.; Aragon-Salamanca, A.; Bremer,
M.; Turatto, M.; Ruiz-Lapuente, P.; Castander, F.; Romer, A. K.;
Collins, C.; Lucey, J.; Edge, A.; Bender, R.; Hopp, U.; Kollatschny, W.
Bibcode: 2007CBET.1146....1B
Altcode: 2007CBET.1146A...1B
Further to CBETs 611 and 1139, B. Bassett, South African Astronomical
Observatory and University of Cape Town (UCT); A. Becker, University of
Washington (UW); D. Bizyaev and H. Brewington, Apache Point Observatory
(APO); C. Choi, Seoul National University (SNU); D. Cinabro, Wayne
State University (WSU); C. D'Andrea, University of Pennsylvania
(Penn); J. Dembicky, APO; D. L. DePoy, Ohio State University (OSU);
B. Dilday, University of Chicago (UC); M. Doi, University of Tokyo
(UoT); J. Eastman, OSU; J. Frieman, Fermilab and UC; P. Garnavich,
University of Notre Dame; A. Goobar, Stockholm University; C. Hogan,
UW; J. Holtzman, New Mexico State University; M. Im, SNU; S. Jha,
Rutgers University; R. Kessler, UC; B. Ketzeback, APO; K. Konishi,
UoT; J. Krzesinski, APO; H. Lampeitl, University of Portsmouth (UP);
G. Leloudas, Dark Cosmology Centre, University of Copenhagen; D. Long,
O. Malanushenko, and V. Malanushenko, APO; J. Marriner, Fermilab;
R. McMillan, APO; G. Miknaitis, Fermilab; T. Morokuma, National
Astronomical Observatory of Japan; J. Mosher, Penn; R. Nichol, UP;
D. Oravetz, K. Pan, APO; L. Ostman, Stockholm University; J. L. Prieto,
OSU; M. Richmond, Rochester Institute of Technology; A. Riess,
Space Telescope Science Institute; R. Romani, Stanford University
(SU); M. Sako, Penn; D. Schneider, Pennsylvania State University;
A. Simmons, APO; M. Smith, UP; S. Snedden, APO; J. Sollerman and
M. Stritzinger, Dark Cosmology Centre; N. Takanashi and K. Tokita,
UoT; M. F. Taylor, WSU; K. van der Heyden, UCT; S. Watters, APO;
N. Yasuda, UoT; C. Wheeler, University of Texas, and C. Zheng,
SU, on behalf of the Sloan Digital Sky Survey II collaboration,
report the discovery of seventeen supernovae on g, r, and i images
taken with the SDSS 2.5-m telescope at APO by the SDSS observing
team. A. Aragon- Salamanca (University of Nottingham), M. Bremer
(University of Bristol), M. Turatto (University of Padova), A. Goobar,
R. Nichol, J. Sollerman, P. Ruiz-Lapuente (University of Barcelona),
F. Castander (ICE/CSIC, Barcelona), A. K. Romer (University of Sussex),
C. Collins (Liverpool John Moores University), and J. Lucey and A. Edge
(University of Durham) report their confirming spectroscopy that
obtained at the European Southern Observatory's 3.6-m New Technology
Telescope on Nov. 15 and 16 UT for 2007rd, 2007re, 2007rf, 2007rg,
2007ri, 2007rj, 2007rl, 2007rn, 2007rp, 2007rq, 2007rr, and 2007rs
by M. Smith and H. Lampeitl. M. Stritzinger and J. Sollerman report
their confirming spectroscopy for 2007rc, 2007rh, and 2007ro that
was obtained by G. Leloudas and J. Sollerman at the Nordic Optical
Telescope on Nov. 15. R. Romani, C. Zheng, M. Sako, C. Wheeler,
D. Schneider, and R. Bender, together with U. Hopp (University of
Munich) and W. Kollatschny (University of Goettingen) report their
confirming spectroscopy that was obtained at the Hobby Eberly Telescope
on Nov. 13 for 2007rk and 2007rm. The discovery magnitudes tabulated
below are all g magnitudes; spectroscopic redshifts are given in the
column labelled z. Peak dates (all 2007) are approximate estimates
from fits to the early light curves, with a typical uncertainty of
plus-or-minus two days. Types marked with a question mark (?) imply
that the type identification based on the spectrum is uncertain. SN
Discov. R.A. (2000.0) Decl. Mag. z Estimated Type Date UT Peak Date
2007rc Oct. 21 1 50 20.20 - 0 24 13.7 20.0 0.13 Oct. 27 Ia 2007rd
Oct. 30 20 47 01.09 - 0 05 57.6 21.4 0.24 Nov. 1 Ia? 2007re Oct. 30 21
17 34.92 - 0 31 26.3 23.0 0.20 Nov. 11 Ia 2007rf Oct. 30 21 55 31.07 +
0 48 54.2 21.5 0.29 Nov. 4 Ia 2007rg Oct. 31 20 51 20.27 + 1 01 08.0
22.3 0.45 Nov. 7 Ia? 2007rh Oct. 31 21 41 03.77 + 0 08 33.2 21.5 0.22
Nov. 10 Ia? 2007ri Nov. 2 1 06 52.35 + 1 09 14.6 22.8 0.19 Nov. 16 Ia
2007rj Nov. 2 1 53 58.86 - 0 05 33.6 22.5 0.09 Nov. 10 Ia 2007rk Nov. 2
3 42 17.43 + 1 03 47.3 22.2 0.20 Nov. 4 Ia 2007rl Nov. 4 2 21 33.07 -
0 22 29.7 22.5 0.33 Nov. 17 Ia 2007rm Nov. 4 2 21 45.09 + 0 51 52.1
22.7 0.30 Nov. 18 Ia 2007rn Nov. 4 23 58 01.40 - 0 44 15.2 22.8 0.28
Nov. 18 Ia 2007ro Nov. 5 1 44 28.97 + 0 13 47.2 21.5 0.17 Nov. 19 Ia
2007rp Nov. 5 22 13 43.58 + 0 23 46.7 22.3 0.15 Nov. 17 Ia 2007rq
Nov. 7 0 53 32.11 + 0 54 01.0 22.4 0.27 Nov. 17 Ia 2007rr Nov. 7 1
01 47.80 - 0 41 37.0 22.2 0.19 Nov. 19 Ia 2007rs Nov. 11 0 46 27.40 -
1 03 44.1 22.5 0.12 Nov. 19 Ia On CBET 1139, it should have been noted
that the spectroscopic information for 2007qz was also contributed by
Aragon-Salamanca et al.
Title: Supernova 2007qd
Authors: Bassett, B.; Becker, A.; Bizyaev, D.; Brewington, H.; Choi,
C.; Cinabro, D.; D'Andrea, C.; Dembicky, J.; Depoy, D. L.; Dilday,
B.; Doi, M.; Eastman, J.; Frieman, J.; Garnavich, P.; Goobar, A.;
Hogan, C.; Holtzman, J.; Im, M.; Jha, S.; Kessler, R.; Ketzeback, B.;
Konishi, K.; Krzesinski, J.; Lampeitl, H.; Leloudas, G.; Long, D.;
Malanushenko, O.; Marriner, J.; McMillan, R.; Miknaitis, G.; Morokuma,
T.; Mosher, J.; Nichol, R.; Oravetz, D.; Pan, K.; Ostman, L.; Prieto,
J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Schneider, D.;
Simmons, A.; Smith, M.; Snedden, S.; Sollerman, J.; Stritzinger, M.;
Takanashi, N.; Tokita, K.; Taylor, M. F.; van der Heyden, K.; Watters,
S.; Yasuda, N.; Wheeler, C.; Zheng, C.
Bibcode: 2007CBET.1137....1B
Altcode: 2007CBET.1137A...1B
B. Bassett, South African Astronomical Observatory and University of
Cape Town (UCT); A. Becker, University of Washington (UW); D. Bizyaev
and H. Brewington, Apache Point Observatory (APO); C. Choi, Seoul
National University (SNU); D. Cinabro, Wayne State University (WSU);
C. D'Andrea, University of Pennsylvania (Penn); J. Dembicky, APO;
D. L. DePoy, Ohio State University (OSU); B. Dilday, University of
Chicago (UC); M. Doi, University of Tokyo (UoT); J. Eastman, OSU;
J. Frieman, Fermilab and UC; P. Garnavich, University of Notre Dame;
A. Goobar, Stockholm University; C. Hogan, UW; J. Holtzman, New Mexico
State University; M. Im, SNU; S. Jha, Rutgers University; R. Kessler,
UC; B. Ketzeback, APO; K. Konishi, UoT; J. Krzesinski, APO; H. Lampeitl,
University of Portsmouth (UP); G. Leloudas, Dark Cosmology Centre,
University of Copenhagen; D. Long, O. Malanushenko, and V. Malanushenko,
APO; J. Marriner, Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab;
T. Morokuma, National Astronomical Observatory of Japan; J. Mosher,
Penn; R. Nichol, UP; D. Oravetz and K. Pan, APO; L. Ostman, Stockholm
University; J. L. Prieto, OSU; M. Richmond, Rochester Institute of
Technology; A. Riess, Space Telescope Science Institute; R. Romani,
Stanford University (SU); M. Sako, Penn; D. Schneider, Pennsylvania
State University; A. Simmons, APO; M. Smith, UP; S. Snedden, APO;
J. Sollerman and M. Stritzinger, Dark Cosmology Centre; N. Takanashi and
K. Tokita, UoT; M. F. Taylor, WSU; K. van der Heyden, UCT; S. Watters,
APO; N. Yasuda, UoT; C. Wheeler, University of Texas; and C. Zheng,
SU, on behalf of the Sloan Digital Sky Survey II collaboration, report
the discovery of a peculiar, sub-luminous, type-Ia supernova on g,
r, and i images taken with the SDSS 2.5-m telescope at APO by the
SDSS observing team on multiple nights. The object was first detected
with r-band magnitude 20.8 on Oct. 31 UT and reached maximum light at
comparable magnitude around Nov. 2. SN 2007qd is located at R.A. =
2h09m33s.56, Decl. = -1o00'02".2 (equinox 2000.0), which is near
the visible end of a spiral arm of a host galaxy centered at R.A. =
2h09m32s.74, Decl.= -0o59'59".6 (redshift z = 0.04313 from the SDSS-I
galaxy redshift survey).
Title: Supernovae 2007pn-2007qb
Authors: Bassett, B.; Becker, A.; Bizyaev, D.; Brewington, H.; Choi,
C.; Cinabro, D.; D'Andrea, C.; Dembicky, J.; Depoy, D. L.; Dilday,
B.; Doi, M.; Eastman, J.; Frieman, J.; Garnavich, P.; Goobar, A.;
Hogan, C.; Holtzman, J.; Im, M.; Jha, S.; Kessler, R.; Ketzeback, B.;
Konishi, K.; Krzesinski, J.; Lampeitl, H.; Leloudas, G.; Long, D.;
Malanushenko, O.; Marriner, J.; McMillan, R.; Miknaitis, G.; Morokuma,
T.; Mosher, J.; Nichol, R.; Oravetz, D.; Pan, K.; Ostman, L.; Prieto,
J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Schneider, D.;
Simmons, A.; Smith, M.; Snedden, S.; Sollerman, J.; Stritzinger, M.;
Takanashi, N.; Tokita, K.; Taylor, M. F.; van der Heyden, K.; Watters,
S.; Yasuda, N.; Wheeler, C.; Zheng, C.; McGinnis, D.; Bender, R.;
Hopp, U.; Kollatschny, W.; Watson, L.
Bibcode: 2007CBET.1135....1B
Altcode: 2007CBET.1135A...1B
Further to CBETs 611 and 1128, B. Bassett, South African Astronomical
Observatory and University of Cape Town (UCT); A. Becker, University of
Washington (UW); D. Bizyaev and H. Brewington, Apache Point Observatory
(APO); C. Choi, Seoul National University (SNU); D. Cinabro, Wayne
State University (WSU); C. D'Andrea, University of Pennsylvania
(Penn); J. Dembicky, APO; D. L. DePoy, Ohio State University (OSU);
B. Dilday, University of Chicago (UC); M. Doi, University of Tokyo
(UoT); J. Eastman, OSU; J. Frieman, Fermilab and UC; P. Garnavich,
University of Notre Dame; A. Goobar, Stockholm University; C. Hogan,
UW; J. Holtzman, New Mexico State University; M. Im, SNU; S. Jha,
Rutgers University; R. Kessler, UC; B. Ketzeback, APO; K. Konishi,
UoT; J. Krzesinski, APO; H. Lampeitl, University of Portsmouth
(UP); G. Leloudas, Dark Cosmology Centre (DARK), University of
Copenhagen; D. Long, O. Malanushenko, and V. Malanushenko, APO;
J. Marriner, Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab;
T. Morokuma, National Astronomical Observatory of Japan; J. Mosher,
Penn; R. Nichol, UP; D. Oravetz and K. Pan, APO; L. Ostman, Stockholm
University; J. L. Prieto, OSU; M. Richmond, Rochester Institute of
Technology; A. Riess, Space Telescope Science Institute; R. Romani,
Stanford University (SU); M. Sako, Penn; D. Schneider, Pennsylvania
State University; A. Simmons, APO; M. Smith, UP; S. Snedden, APO;
J. Sollerman and M. Stritzinger, DARK; N. Takanashi and K. Tokita,
UoT; M. F. Taylor, WSU; K. van der Heyden, UCT; S. Watters, APO;
N. Yasuda, UoT; C. Wheeler, University of Texas; and C. Zheng,
SU, on behalf of the Sloan Digital Sky Survey II collaboration,
report the discovery of fifteen supernovae on g, r, and i images
taken with the SDSS 2.5-m telescope at APO by the SDSS observing
team. J. Marriner, D. McGinnis (Fermilab), G. Miknaitis, A. Becker,
J. Frieman, J. Holtzman, and A. Riess report confirming spectroscopy
of 2007pt, 2007pu, 2007qa, and 2007qb that was obtained at the ARC
3.5-m telescope on Nov. 9 and 10 UT. R. Romani, C. Zheng, M. Sako,
C. Wheeler, D. Schneider, and R. Bender, together with U. Hopp
(University of Munich) and W. Kollatschny (University of Goettingen),
report confirming spectroscopy that was obtained at the Hobby-Eberly
Telescope on Nov. 8, 9, and 10 for 2007pn, 2007po, 2007pp, 2007pq,
2007pr, 2007ps, 2007pv, 2007pw, and 2007py. L. Watson (OSU) and
J. Prieto report confirming spectroscopy of 2007px and 2007pz that
was obtained at the Hiltner 2.4-m telescope at MDM Observatory on the
night of Nov. 9. The discovery magnitudes tabulated below are all g
magnitudes; spectroscopic redshifts are given in the column labelled
z. Peak dates (all 2007) are approximate estimates either from fits to
the early light curves or from the spectra, with a typical uncertainty
of plus-or-minus several days; in cases where such estimates are either
uncertain or very discrepant, they are not reported. Types marked with
a question mark (?) imply that the type identification based on the
spectrum is uncertain. SN Discov. R.A. (2000.0) Decl. Mag. z Estimated
Type Date UT Peak Date 2007pn Oct. 12 2 16 33.90 - 0 43 20.5 22.5 0.31
Oct. 20 Ia? 2007po Oct. 13 3 35 32.23 + 0 42 12.1 22.1 0.29 Oct. 17
Ia 2007pp Oct. 15 3 11 01.16 + 0 21 24.3 22.2 0.26 Oct. 20 Ia 2007pq
Oct. 15 22 37 13.94 + 0 44 11.0 22.1 0.19 Oct. 30 Ia 2007pr Oct. 20 23
06 13.03 + 0 19 44.3 22.9 0.33 Oct. 27 Ia 2007ps Oct. 21 2 19 13.53 -
0 23 05.4 21.8 0.25 Oct. 28 Ia 2007pt Oct. 29 2 07 38.51 - 0 19 26.4
20.5 0.18 Oct. 31 Ia 2007pu Oct. 29 22 45 58.15 - 0 38 55.4 21.6 0.09
Nov. 16 Ia 2007pv Oct. 30 21 59 45.15 + 1 07 37.0 21.5 0.26 Nov. 6 Ia
2007pw Oct. 30 23 37 34.65 + 0 14 53.2 21.6 0.25 Nov. 2 Ia 2007px Nov. 2
0 22 44.01 - 0 28 44.4 23.1 0.11 Nov. 14 Ia 2007py Nov. 4 3 29 31.60 +
0 30 56.0 22.4 0.21 Nov. 11 Ia 2007pz Nov. 4 3 30 25.18 + 1 00 33.9
20.9 0.13 Nov. 15 Ia 2007qa Nov. 5 1 52 33.92 + 1 14 38.7 22.5 0.11
Nov. 15 Ia 2007qb Nov. 8 0 59 18.73 - 0 56 49.4 20.2 0.08 Nov. 19 II
Title: Supernovae 2007oe-2007om
Authors: Bassett, B.; Becker, A.; Bizyaev, D.; Brewington, H.; Choi,
C.; Cinabro, D.; D'Andrea, C.; Dembicky, J.; Depoy, D. L.; Dilday,
B.; Doi, M.; Eastman, J.; Frieman, J.; Garnavich, P.; Goobar, A.;
Hogan, C.; Holtzman, J.; Im, M.; Jha, S.; Kessler, R.; Ketzeback, B.;
Konishi, K.; Krzesinski, J.; Lampeitl, H.; Leloudas, G.; Long, D.;
Malanushenko, O.; Marriner, J.; McMillan, R.; Miknaitis, G.; Morokuma,
T.; Mosher, J.; Nichol, R.; Oravetz, D.; Pan, K.; Ostman, L.; Prieto,
J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Schneider, D.;
Simmons, A.; Smith, M.; Snedden, S.; Sollerman, J.; Stritzinger, M.;
Takanashi, N.; Tokita, K.; Taylor, M. F.; van der Heyden, K.; Watters,
S.; Yasuda, N.; Wheeler, C.; Zheng, C.; McGinnis, D.; Bender, R.;
Kollatschny, W.; Bird, J.
Bibcode: 2007CBET.1117....1B
Altcode: 2007CBET.1117A...1B
Further to CBETs 611 and 1109, B. Bassett, South African Astronomical
Observatory and University of Cape Town (UCT); A. Becker, University of
Washington (UW); D. Bizyaev and H. Brewington, Apache Point Observatory
(APO); C. Choi, Seoul National University (SNU); D. Cinabro, Wayne
State University (WSU); C. D'Andrea, University of Pennsylvania
(Penn); J. Dembicky, APO; D. L. DePoy, Ohio State University (OSU);
B. Dilday, University of Chicago (UC); M. Doi, University of Tokyo
(UoT); J. Eastman, OSU; J. Frieman, Fermilab and UC; P. Garnavich,
University of Notre Dame; A. Goobar, Stockholm University; C. Hogan,
UW; J. Holtzman, New Mexico State University; M. Im, SNU; S. Jha,
Rutgers University; R. Kessler, UC; B. Ketzeback, APO; K. Konishi,
UoT; J. Krzesinski, APO; H. Lampeitl, University of Portsmouth (UP);
G. Leloudas, Dark Cosmology Centre (DCC), University of Copenhagen;
D. Long, O. Malanushenko, and V. Malanushenko, APO; J. Marriner,
Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab; T. Morokuma,
National Astronomical Observatory of Japan; J. Mosher, Penn;
R. Nichol, UP; D. Oravetz and K. Pan, APO; L. Ostman, Stockholm
University; J. L. Prieto, OSU; M. Richmond, Rochester Institute of
Technology; A. Riess, Space Telescope Science Institute; R. Romani,
Stanford University (SU); M. Sako, Penn; D. Schneider, Pennsylvania
State University; A. Simmons, APO; M. Smith, UP; S. Snedden, APO;
J. Sollerman and M. Stritzinger, DCC; N. Takanashi and K. Tokita, UoT;
M. F. Taylor, WSU; K. van der Heyden, UCT; S. Watters, APO; N. Yasuda,
UoT; C. Wheeler, University of Texas; and C. Zheng, SU, on behalf of the
Sloan Digital Sky Survey II collaboration, report the discovery of nine
supernovae on g, r, and i images taken with the SDSS 2.5-m telescope at
APO by the SDSS observing team. J. Marriner, D. McGinnis (Fermilab),
G. Miknaitis, A. Becker, J. Frieman, J. Holtzman, and A. Riess report
confirming spectroscopy of 2007ol and 2007om, obtained with the ARC
3.5-m telescope on Nov. 2 UT. M. Sako, C. D'Andrea, and N. Yasuda report
confirming spectroscopy of 2007oe and 2007og, obtained on the Subaru
8-m telescope on Oct. 17. R. Romani, C. Zheng, M. Sako, C. Wheeler,
D. Schneider, and R. Bender, together with University of Hopp
(University of Munich) and W. Kollatschny (University of Goettingen),
report confirming spectroscopy with the Hobby-Eberly Telescope on
Oct. 30 and 31 for 2007of, 2007oh, and 2007oi. J. Eastman (OSU),
J. Bird (OSU), and J. Prieto report confirming spectroscopy of 2007oj
and 2007ok, obtained with the Hiltner 2.4-m telescope on the nights
of Oct. 27 and 28. The discovery magnitudes tabulated below are all g
magnitudes; spectroscopic redshifts are given in the column labelled
z. Peak dates (all 2007) are approximate estimates either from fits to
the early light curves or from the spectra, with a typical uncertainty
of plus-or-minus several days; in cases where such estimates are either
uncertain or very discrepant, they are not reported. Types marked with
a question mark (?) imply that the type identification based on the
spectrum is uncertain. SN Discov. R.A. (2000.0) Decl. Mag. z Estimated
Type Date UT Peak Date 2007oe Sep. 22 0 24 10.34 + 0 46 30.2 21.6 --
Oct. 13 IIn 2007of Oct. 6 21 04 56.27 + 0 03 39.6 22.8 0.40 Oct. 9
Ia? 2007og Oct. 8 2 48 20.54 - 0 58 10.7 21.4 -- Oct. 13 IIP 2007oh
Oct. 10 20 52 36.92 - 0 27 14.3 22.9 0.42 Oct. 12 Ia 2007oi Oct. 13 0
21 17.87 + 1 04 28.3 23.1 0.30 Oct. 21 Ia? 2007oj Oct. 15 23 51 38.01 +
0 16 47.4 21.6 0.12 Oct. 25 Ia 2007ok Oct. 17 2 28 24.27 + 0 11 04.8
21.3 0.17 Oct. 31 Ia 2007ol Oct. 29 1 37 23.70 - 0 18 43.2 19.4 0.06
Nov. 8 Ia 2007om Oct. 30 23 54 20.69 - 0 55 03.4 19.7 0.11 Nov. 9 Ia
Title: Supernovae 2007oq-2007pj
Authors: Bassett, B.; Becker, A.; Bizyaev, D.; Brewington, H.; Choi,
C.; Cinabro, D.; D'Andrea, C.; Dembicky, J.; Depoy, D. L.; Dilday,
B.; Doi, M.; Eastman, J.; Frieman, J.; Garnavich, P.; Goobar, A.;
Hogan, C.; Holtzman, J.; Im, M.; Jha, S.; Kessler, R.; Ketzeback, B.;
Konishi, K.; Krzesinski, J.; Lampeitl, H.; Leloudas, G.; Long, D.;
Malanushenko, O.; Marriner, J.; McMillan, R.; Miknaitis, G.; Morokuma,
T.; Mosher, J.; Nichol, R.; Oravetz, D.; Pan, K.; Ostman, L.; Prieto,
J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Schneider, D.;
Simmons, A.; Smith, M.; Snedden, S.; Sollerman, J.; Stritzinger, M.;
Takanashi, N.; Tokita, K.; Taylor, M. F.; van der Heyden, K.; Watters,
S.; Yasuda, N.; Wheeler, C.; Zheng, C.; McGinnis, D.; Bender, R.; Hopp,
U.; Kollatschny, W.; Molla, M.; Castander, F.; Miquel, R.; Galbany, L.
Bibcode: 2007CBET.1128....1B
Altcode: 2007CBET.1128A...1B
Further to CBETs 611 and 1117, B. Bassett, South African Astronomical
Observatory and University of Cape Town (UCT); A. Becker, University of
Washington (UW); D. Bizyaev and H. Brewington, Apache Point Observatory
(APO); C. Choi, Seoul National University (SNU); D. Cinabro, Wayne
State University (WSU); C. D'Andrea, University of Pennsylvania
(Penn); J. Dembicky, APO; D. L. DePoy, Ohio State University (OSU);
B. Dilday, University of Chicago (UC); M. Doi, University of Tokyo
(UoT); J. Eastman, OSU; J. Frieman, Fermilab and UC; P. Garnavich,
University of Notre Dame; A. Goobar, Stockholm University; C. Hogan,
UW; J. Holtzman, New Mexico State University; M. Im, SNU; S. Jha,
Rutgers University; R. Kessler, UC; B. Ketzeback, APO; K. Konishi,
UoT; J. Krzesinski, APO; H. Lampeitl, University of Portsmouth
(UP); G. Leloudas, Dark Cosmology Centre (DARK), University of
Copenhagen; D. Long, O. Malanushenko, and V. Malanushenko, APO;
J. Marriner, Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab;
T. Morokuma, National Astronomical Observatory of Japan; J. Mosher,
Penn; R. Nichol, UP; D. Oravetz and K. Pan, APO; L. Ostman, Stockholm
University; J. L. Prieto, OSU; M. Richmond, Rochester Institute of
Technology; A. Riess, Space Telescope Science Institute; R. Romani,
Stanford University (SU); M. Sako, Penn; D. Schneider, Pennsylvania
State University; A. Simmons, APO; M. Smith, UP; S. Snedden, APO;
J. Sollerman and M. Stritzinger, DARK; N. Takanashi and K. Tokita, UoT;
M. F. Taylor, WSU; K. van der Heyden, UCT; S. Watters, APO; N. Yasuda,
UoT; C. Wheeler, University of Texas; and C. Zheng, SU, on behalf of
the Sloan Digital Sky Survey II collaboration, report the discovery
of twenty supernovae on g, r, and i images taken with the SDSS 2.5-m
telescope at APO by the SDSS observing team. J. Marriner, D. McGinnis
(Fermilab), G. Miknaitis, A. Becker, J. Frieman, J. Holtzman, and
A. Riess report confirming spectroscopy of 2007or, 2007ou, and 2007pg
that was obtained with the ARC 3.5-m telescope on Nov. 4 UT. R. Romani,
C. Zheng, M. Sako, C. Wheeler, D. Schneider, and R. Bender,
together with U. Hopp (University of Munich) and W. Kollatschny
(University of Goettingen), report confirming spectroscopy that was
obtained with the Hobby-Eberly Telescope on Nov. 4 and 5 for 2007oq,
2007os, 2007ov, 2007ow, 2007ox, 2007oy, 2007oz, 2007pe, 2007pi, and
2007pj. A. Goobar, R. Nichol, M. Molla (Centro de Investigaciones
Energeticas, Medioambientales y Tecnologicas, Madrid), F. Castander
(Institut de Ciencies de l'Espai, Barcelona), and R. Miquel (Institut
de Fisica d'Altes Energies = IFAE, Barcelona), report confirming
spectroscopy that was taken by Miquel, Molla, and L. Galbany (IFAE)
at the 3.58-m Telescopio Nazionale Galileo on La Palma on the nights
of Nov. 4 and 5 for 2007ot, 2007pa, 2007pb, 2007pc, 2007pd, 2007pf, and
2007ph. The discovery magnitudes tabulated below are all g magnitudes;
spectroscopic redshifts are given in the column labelled z. Peak dates
(all 2007) are approximate estimates either from fits to the early light
curves or from the spectra, with a typical uncertainty of plus-or-minus
several days; in cases where such estimates are either uncertain or
very discrepant, they are not reported. Types marked with a question
mark (?) imply that the type identification based on the spectrum is
uncertain. SN Discov. R.A. (2000.0) Decl. Mag. z Estimated Type Date
UT Peak Date 2007oq Oct. 6 21 42 30.75 + 0 59 04.6 22.0 0.34 Oct. 10
Ia? 2007or Oct. 9 1 42 38.33 + 1 01 49.5 21.9 0.17 Oct. 21 Ia 2007os
Oct. 11 1 57 38.65 - 0 31 19.7 22.6 0.35 Oct. 11 Ia? 2007ot Oct. 12 0
35 36.76 - 0 13 57.7 23.0 0.20 Oct. 27 Ia 2007ou Oct. 12 2 23 42.69 -
0 49 33.6 22.5 0.11 Oct. 28 Ia 2007ov Oct. 12 2 41 08.76 + 0 08 40.0
22.3 0.32 Oct. 19 Ia 2007ow Oct. 12 21 34 02.09 - 0 44 25.9 22.2 0.21
Oct. 18 Ia? 2007ox Oct. 13 22 46 58.08 - 0 04 18.5 21.7 0.21 Oct. 22
Ia? 2007oy Oct. 15 23 17 55.44 + 1 13 22.2 22.7 0.38 Oct. 22 Ia 2007oz
Oct. 15 23 57 16.57 + 0 14 57.7 23.0 0.30 Oct. 20 Ia 2007pa Oct. 19 21
01 34.45 - 0 16 06.6 21.5 0.16 Nov. 3 Ia 2007pb Oct. 19 23 48 25.00 -
1 11 06.0 22.0 0.24 Oct. 30 Ia 2007pc Oct. 20 21 15 49.46 + 0 39 04.7
21.4 0.15 Nov. 1 Ia 2007pd Oct. 20 23 11 54.07 - 0 34 41.1 22.1 0.15
Nov. 3 Ia 2007pe Oct. 21 2 21 04.01 + 0 29 47.1 21.8 0.30 Oct. 22 Ia
2007pf Oct. 29 22 11 43.32 + 0 34 44.6 20.2 0.12 Nov. 11 Ia 2007pg
Oct. 29 23 27 49.61 + 0 27 26.9 19.6 0.12 Oct. 29 II? 2007ph Oct. 30 20
51 13.40 - 0 57 20.9 21.5 0.14 Nov. 8 Ia 2007pi Oct. 30 22 46 49.33 +
0 45 22.7 22.2 0.29 Nov. 6 Ia 2007pj Oct. 31 23 49 10.70 + 0 47 52.4
22.3 0.35 Nov. 5 Ia
Title: Supernovae 2007qf-2007ra
Authors: Bassett, B.; Becker, A.; Bizyaev, D.; Brewington, H.; Choi,
C.; Cinabro, D.; D'Andrea, C.; Dembicky, J.; Depoy, D. L.; Dilday,
B.; Doi, M.; Eastman, J.; Frieman, J.; Garnavich, P.; Goobar, A.;
Hogan, C.; Holtzman, J.; Im, M.; Jha, S.; Kessler, R.; Ketzeback, B.;
Konishi, K.; Krzesinski, J.; Lampeitl, H.; Leloudas, G.; Long, D.;
Malanushenko, O.; Marriner, J.; McMillan, R.; Miknaitis, G.; Morokuma,
T.; Mosher, J.; Nichol, R.; Oravetz, D.; Pan, K.; Ostman, L.; Prieto,
J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Schneider, D.;
Simmons, A.; Smith, M.; Snedden, S.; Sollerman, J.; Stritzinger,
M.; Takanashi, N.; Tokita, K.; Taylor, M. F.; van der Heyden, K.;
Watters, S.; Yasuda, N.; Wheeler, C.; Zheng, C.; Aragon-Salamanca,
A.; Bremer, M.; Turatto, M.; Ruiz-Lapuente, P.; Castander, F.; Romer,
A. K.; Collins, C.; Lucey, J.; Edge, A.; McGinnis, D.; Bender, R.;
Hopp, U.; Kollatschny, W.; Watson, L.; Silverman, J. M.; Filippenko,
A. V.; Foley, R. J.
Bibcode: 2007CBET.1139....1B
Altcode: 2007CBET.1139A...1B
Further to CBETs 611 and 1135, B. Bassett, South African Astronomical
Observatory and University of Cape Town (UCT); A. Becker, University of
Washington (UW); D. Bizyaev and H. Brewington, Apache Point Observatory
(APO); C. Choi, Seoul National University (SNU); D. Cinabro, Wayne
State University (WSU); C. D'Andrea, University of Pennsylvania
(Penn); J. Dembicky, APO; D. L. DePoy, Ohio State University (OSU);
B. Dilday, University of Chicago (UC); M. Doi, University of Tokyo
(UoT); J. Eastman, OSU; J. Frieman, Fermilab and UC; P. Garnavich,
University of Notre Dame; A. Goobar, Stockholm University; C. Hogan,
UW; J. Holtzman, New Mexico State University; M. Im, SNU; S. Jha,
Rutgers University; R. Kessler, UC; B. Ketzeback, APO; K. Konishi,
UoT; J. Krzesinski, APO; H. Lampeitl, University of Portsmouth
(UP); G. Leloudas, Dark Cosmology Centre (DARK), University of
Copenhagen; D. Long, O. Malanushenko, and V. Malanushenko, APO;
J. Marriner, Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab;
T. Morokuma, National Astronomical Observatory of Japan; J. Mosher,
Penn; R. Nichol, UP; D. Oravetz and K. Pan, APO; L. Ostman, Stockholm
University; J. L. Prieto, OSU; M. Richmond, Rochester Institute of
Technology; A. Riess, Space Telescope Science Institute; R. Romani,
Stanford University (SU); M. Sako, Penn; D. Schneider, Pennsylvania
State University; A. Simmons, APO; M. Smith, UP; S. Snedden, APO;
J. Sollerman and M. Stritzinger, DARK; N. Takanashi and K. Tokita,
UoT; M. F. Taylor, WSU; K. van der Heyden, UCT; S. Watters, APO;
N. Yasuda, UoT; C. Wheeler, University of Texas; and C. Zheng,
SU, on behalf of the Sloan Digital Sky Survey II collaboration,
report the discovery of twenty-two supernovae on g, r, and i images
taken with the SDSS 2.5-m telescope at APO by the SDSS observing
team. A. Aragon-Salamanca (University of Nottingham), M. Bremer
(University of Bristol), M. Turatto (University of Padova), A. Goobar,
R. Nichol, J. Sollerman, P. Ruiz-Lapuente (University of Barcelona),
F. Castander (ICE/CSIC, Barcelona), A. K. Romer (University of Sussex),
C. Collins (Liverpool John Moores University), and J. Lucey and
A. Edge (University of Durham) report confirming spectroscopy that was
obtained at the European Southern Observatory's 3.6-m New Technology
Telescope on Nov. 13 and 14 UT for 2007qf, 2007qg, 2007qh, 2007qi,
2007qj, 2007ql, 2007qo, 2007qp, 2007qs, 2007qx, and 2007qy by M. Smith
and H. Lampeitl. J. Marriner, D. McGinnis (Fermilab), G. Miknaitis,
A. Becker, J. Frieman, J. Holtzman, and A. Riess report confirming
spectroscopy of 2007qm and 2007qw that was obtained at the ARC 3.5-m
telescope on Nov. 12. R. Romani, C. Zheng, M. Sako, C. Wheeler,
D. Schneider, and R. Bender, together with U. Hopp (University
of Munich) and W. Kollatschny (University of Goettingen), report
confirming spectroscopy that was obtained at the Hobby-Eberly Telescope
on Nov. 12 and 13 for 2007qt, 2007qk, 2007qn, and 2007qq. L. Watson
(OSU) and J. Prieto report confirming spectroscopy for 2007qr and 2007qv
that was obtained at the Hiltner 2.4-m telescope at MDM Observatory
on the night of Nov. 11. J. M. Silverman, A. V. Filippenko, and
R. J. Foley (University of California, Berkeley) report confirming
spectroscopy for 2007qu that was obtained at the Keck I telescope on
Nov. 12. M. Stritzinger and J. Sollerman report confirming spectroscopy
for 2007ra that was obtained by G. Leloudas and J. Sollerman at the
Nordic Optical Telescope on Nov. 13; the host galaxy for this event
contains an active galactic nucleus. The discovery magnitudes tabulated
below are all g magnitudes; spectroscopic redshifts are given in the
column labelled z. Peak dates (all 2007) are approximate estimates
either from fits to the early light curves or from the spectra, with
a typical uncertainty of plus-or-minus several days; in cases where
such estimates are either uncertain or very discrepant, they are not
reported. SN Discov. R.A. (2000.0) Decl. Mag. z Estimated Type Date
UT Peak Date 2007qf Oct. 21 22 15 03.00 - 0 20 28.5 22.0 0.21 Oct. 23
Ia 2007qg Oct. 23 1 32 01.97 - 0 25 47.0 21.8 -- Nov. 4 Ia 2007qh
Oct. 29 0 39 30.86 + 1 01 27.6 21.2 0.25 Oct. 28 Ia 2007qi Oct. 30 23
16 28.80 - 0 05 54.6 21.4 0.30 Oct. 31 Ia 2007qj Oct. 31 20 49 40.04 +
0 28 07.1 21.7 0.17 Nov. 16 Ia 2007qk Oct. 31 21 03 14.12 + 0 27 26.4
22.2 0.30 Nov. 2 Ia 2007ql Oct. 31 21 29 43.66 + 0 26 40.6 21.6 0.23
Nov. 10 Ia 2007qm Oct. 31 22 30 48.73 + 0 00 38.7 21.8 0.21 Nov. 10
Ia 2007qn Oct. 31 23 59 09.24 + 1 09 30.0 22.2 0.32 Nov. 7 Ia 2007qo
Nov. 1 1 43 01.60 - 0 56 43.7 22.5 0.23 Nov. 14 Ia 2007qp Nov. 2 0
42 48.43 + 0 22 47.1 22.2 0.27 Nov. 13 Ia 2007qq Nov. 2 2 42 30.21 -
0 58 16.1 23.0 0.24 Nov. 10 Ia 2007qr Nov. 4 2 52 29.23 - 1 08 22.3
20.5 0.14 Nov. 12 Ia 2007qs Nov. 4 3 11 46.03 + 0 05 30.9 21.5 0.29
Nov. 8 Ia 2007qt Nov. 4 3 29 25.41 - 0 38 46.7 22.7 0.31 Nov. 17 Ia
2007qu Nov. 4 22 32 32.82 + 0 51 32.7 22.3 0.31 Nov. 15 Ia 2007qv
Nov. 4 22 35 07.91 - 1 06 37.5 21.9 0.10 Nov. 7 II 2007qw Nov. 4 22
35 29.01 + 0 28 56.2 21.2 0.15 Nov. 16 Ic 2007qx Nov. 5 0 27 41.78 +
1 13 59.7 22.4 0.06 Nov. 15 Ib 2007qy Nov. 5 1 55 15.28 + 0 38 35.2
22.1 0.24 Nov. 17 Ia 2007qz Nov. 5 21 00 02.77 + 0 49 39.3 22.4 0.32
Nov. 14 Ia 2007ra Nov. 12 23 34 23.95 - 0 53 25.2 19.9 0.09 Nov. 26 Ia
Title: Supernovae 2007md and 2007mr-2007nl
Authors: Bassett, B.; Becker, A.; Bizyaev, D.; Brewington, H.; Choi,
C.; Cinabro, D.; D'Andrea, C.; Dembicky, J.; Depoy, D. L.; Dilday,
B.; Doi, M.; Eastman, J.; Frieman, J.; Garnavich, P.; Goobar, A.;
Hogan, C.; Holtzman, J.; Im, M.; Jha, S.; Kessler, R.; Ketzeback, B.;
Konishi, K.; Krzesinski, J.; Lampeitl, H.; Leloudas, G.; Long, D.;
Malanushenko, O.; Marriner, J.; McMillan, R.; Miknaitis, G.; Morokuma,
T.; Mosher, J.; Nichol, R.; Oravetz, D.; Pan, K.; Ostman, L.; Prieto,
J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Schneider, D.;
Simmons, A.; Smith, M.; Snedden, S.; Sollerman, J.; Stritzinger,
M.; Takanashi, N.; Tokita, K.; Taylor, M. F.; van der Heyden, K.;
Watters, S.; Yasuda, N.; Wheeler, C.; Zheng, C.; Filippenko, A. V.;
Silverman, J. M.; Foley, R. J.; Modjaz, M.; Bremer, M.; Turatto, M.;
Ruiz-Lapuente, P.; Castander, F.; Romer, A. K.; Collins, C.; Lucey,
J.; Edge, A.; Bender, R.; Hopp, U.; Kollatschny, W.; McGinnis, D.
Bibcode: 2007CBET.1104....1B
Altcode: 2007CBET.1104A...1B
Further to CBETs 611 and 1102, B. Bassett, South African Astronomical
Observatory; A. Becker, University of Washington (UW); D. Bizyaev
and H. Brewington, Apache Point Observatory (APO); C. Choi, Seoul
National University (SNU); D. Cinabro, Wayne State University (WSU);
C. D'Andrea, University of Pennsylvania (Penn); J. Dembicky, APO;
D. L. DePoy, Ohio State University (OSU); B. Dilday, University of
Chicago (UC); M. Doi, University of Tokyo (UoT); J. Eastman, OSU;
J. Frieman, Fermilab and UC; P. Garnavich, University of Notre Dame;
A. Goobar, Stockholm University; C. Hogan, UW; J. Holtzman, New Mexico
State University; M. Im, SNU; S. Jha, Rutgers University; R. Kessler,
UC; B. Ketzeback, APO; K. Konishi, UoT; J. Krzesinski, APO; H. Lampeitl,
University of Portsmouth (UP); G. Leloudas, Dark Cosmology Centre (DCC),
University of Copenhagen; D. Long, O. Malanushenko, and V. Malanushenko,
APO; J. Marriner, Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab;
T. Morokuma, National Astronomical Observatory of Japan; J. Mosher,
Penn; R. Nichol, UP; D. Oravetz, K. Pan, APO; L. Ostman, Stockholm
University, J. L. Prieto, OSU; M. Richmond, Rochester Institute of
Technology; A. Riess, Space Telescope Science Institute; R. Romani,
Stanford University (SU); M. Sako, Penn; D. Schneider, Pennsylvania
State University; A. Simmons, APO; M. Smith, UP; S. Snedden, APO;
J. Sollerman and M. Stritzinger, DCC; N. Takanashi and K. Tokita,
UoT; M. F. Taylor, WSU; K. van der Heyden, University of Cape Town;
S. Watters, APO; N. Yasuda, UoT; C. Wheeler, University of Texas;
and C. Zheng, SU, on behalf of the Sloan Digital Sky Survey II
collaboration, report the discovery of twenty-one supernovae on g, r,
and i images taken with the SDSS 2.5-m telescope at APO by the SDSS
observing team. A. V. Filippenko, J. M. Silverman, R. J. Foley, and
M. Modjaz, University of California, Berkeley, have reported confirming
spectroscopy of 2007my, obtained on the Keck 10-m telescope on Oct. 16
UT. A. Aragon-Salamanca, University of Nottingham; M. Bremer, University
of Bristol; M. Turatto, University of Padova; A. Goobar; R. Nichol;
J. Sollerman; P. Ruiz-Lapuente, University of Barcelona; F. Castander,
University of Barcelona; A. K. Romer, University of Sussex, C. Collins,
Liverpool John Moores University; and J. Lucey and A. Edge, University
of Durham, have reported confirming spectroscopy that was obtained
at the European Southern Observatory's New Technology Telescope on
Oct. 16 and 17 by M. Smith and G. Leloudas for 2007ms, 2007mr, 2007mz,
2007nl, 2007nb, 2007nc, 2007mv, 2007ne, 2007nf, 2007ni, 2007nj, and
2007nk. R. Romani, C. Zheng, M. Sako, C. Wheeler, and D. Schneider,
together with R. Bender and U. Hopp, University of Munich; and
W. Kollatschny, University of Goettingen, have reported confirming
spectroscopy obtained at the Hobby-Eberly Telescope on Oct. 15 and
17 for 2007mt, 2007mw, 2007mu, 2007nd, 2007ng, 2007nh, 2007mx, and
2007na. The discovery magnitudes tabulated below are all g magnitudes;
spectroscopic redshifts are given in the column labelled z. Peak dates
(all 2007) are approximate estimates either from fits to the early light
curves or from the spectra, with a typical uncertainty of plus-or-minus
several days; in cases where such estimates are either uncertain or
very discrepant, they are not reported. Types marked with question
marks (?) imply that the type identification based on the spectrum is
uncertain. SN Discov. R.A. (2000.0) Decl. Mag. z Estimated Type Date
UT Peak Date 2007mr Sep. 5 20 08 18.00 - 0 39 44.7 21.3 0.08 Sep. 1
II 2007ms Sep. 13 20 32 18.34 - 1 00 53.1 20.7 0.04 Sep. 17 II-pec
2007mt Sep. 19 1 45 56.59 - 0 13 03.5 23.1 0.41 Oct. 1 Ia? 2007mu
Sep. 22 0 12 18.56 - 0 04 38.3 22.0 0.40 Sep. 21 Ia 2007mv Sep. 22 0
35 37.37 + 0 22 12.1 22.3 0.26 Oct. 5 Ia 2007mw Oct. 3 23 03 02.76 +
0 50 57.0 22.4 0.33 Oct. 3 Ia 2007mx Oct. 6 21 14 10.87 - 0 17 46.5
22.7 0.41 Oct. 8 Ia 2007my Oct. 6 21 55 32.20 - 0 22 19.2 21.8 0.29
Oct. 12 Ia 2007mz Oct. 6 22 07 51.20 - 1 04 11.8 22.2 0.23 Oct. 16
Ia 2007na Oct. 6 22 13 32.79 + 0 52 49.8 22.8 0.47 Oct. 11 Ia 2007nb
Oct. 6 23 25 30.06 + 0 25 23.1 22.1 0.28 Oct. 18 Ia 2007nc Oct. 8 0
01 09.30 + 1 04 06.5 22.5 0.09 Oct. 20 Ib? 2007nd Oct. 8 0 40 18.81 -
1 02 14.5 21.8 0.27 Oct. 7 Ia 2007ne Oct. 8 0 54 02.20 + 1 04 08.4
22.2 0.21 Oct. 25 Ia 2007nf Oct. 8 1 03 26.47 + 0 19 53.0 22.8 0.24
Oct. 20 Ia 2007ng Oct. 8 2 25 38.10 + 0 42 34.5 23.2 0.40 Oct. 15
Ia 2007nh Oct. 8 2 50 27.69 - 0 33 04.2 21.8 0.27 Oct. 16 Ia 2007ni
Oct. 9 2 05 50.39 - 0 19 54.7 21.8 0.21 Oct. 23 Ia 2007nj Oct. 11 2
52 27.45 + 0 15 06.6 21.9 0.15 Oct. 18 Ia 2007nk Oct. 13 3 20 56.52 +
1 03 29.3 21.5 0.22 Oct. 19 Ia 2007nl Oct. 13 23 13 44.92 - 0 04 03.5
21.8 0.16 Oct. 11 II Also, J. Marriner and D. McGinnis (Fermilab),
G. Miknaitis, A. Becker, J. Frieman, J. Holtzman, and A. Riess report
that a spectrum taken with the ARC 3.5-m telescope on Oct. 16 shows
that 2007md, originally reported on CBET 1102 as a type-Ic supernova,
is in fact a type-II supernova.
Title: Supernovae 2007lx and 2007nr-2007oa
Authors: Bassett, B.; Becker, A.; Bizyaev, D.; Brewington, H.; Choi,
C.; Cinabro, D.; D'Andrea, C.; Dembicky, J.; Depoy, D. L.; Dilday,
B.; Doi, M.; Eastman, J.; Frieman, J.; Garnavich, P.; Goobar, A.;
Hogan, C.; Holtzman, J.; Im, M.; Jha, S.; Kessler, R.; Ketzeback, B.;
Konishi, K.; Krzesinski, J.; Lampeitl, H.; Leloudas, G.; Long, D.;
Malanushenko, O.; Marriner, J.; McMillan, R.; Miknaitis, G.; Morokuma,
T.; Mosher, J.; Nichol, R.; Oravetz, D.; Pan, K.; Ostman, L.; Prieto,
J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Schneider, D.;
Simmons, A.; Smith, M.; Snedden, S.; Sollerman, J.; Stritzinger, M.;
Takanashi, N.; Tokita, K.; Taylor, M. F.; van der Heyden, K.; Watters,
S.; Yasuda, N.; Wheeler, C.; Zheng, C.; McGinnis, D.; Bender, R.;
Hopp, U.; Kollatschny, W.
Bibcode: 2007CBET.1109....1B
Altcode: 2007CBET.1109A...1B
Further to CBETs 611 and 1104, B. Bassett, South African Astronomical
Observatory and University of Cape Town (UCT); A. Becker, University of
Washington (UW); D. Bizyaev and H. Brewington, Apache Point Observatory
(APO); C. Choi, Seoul National University (SNU); D. Cinabro, Wayne
State University (WSU); C. D'Andrea, University of Pennsylvania
(Penn); J. Dembicky, APO; D. L. DePoy, Ohio State University (OSU);
B. Dilday, University of Chicago (UC); M. Doi, University of Tokyo
(UoT); J. Eastman, OSU; J. Frieman, Fermilab and UC; P. Garnavich,
University of Notre Dame; A. Goobar, Stockholm University; C. Hogan,
UW; J. Holtzman, New Mexico State University; M. Im, SNU; S. Jha,
Rutgers University; R. Kessler, UC; B. Ketzeback, APO; K. Konishi,
UoT; J. Krzesinski, APO; H. Lampeitl, University of Portsmouth (UP);
G. Leloudas, Dark Cosmology Centre (DCC), University of Copenhagen;
D. Long, O. Malanushenko, and V. Malanushenko, APO; J. Marriner,
Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab; T. Morokuma,
National Astronomical Observatory of Japan; J. Mosher, Penn;
R. Nichol, UP; D. Oravetz and K. Pan, APO; L. Ostman, Stockholm
University; J. L. Prieto, OSU; M. Richmond, Rochester Institute of
Technology; A. Riess, Space Telescope Science Institute; R. Romani,
Stanford University (SU); M. Sako, Penn; D. Schneider, Pennsylvania
State University; A. Simmons, APO; M. Smith, UP; S. Snedden, APO;
J. Sollerman and M. Stritzinger, DCC; N. Takanashi and K. Tokita, UoT;
M. F. Taylor, WSU; K. van der Heyden, UCT; S. Watters, APO; N. Yasuda,
UoT; C. Wheeler, University of Texas; and C. Zheng, SU, on behalf of the
Sloan Digital Sky Survey II collaboration, report the discovery of ten
supernovae on g, r, and i images taken with the SDSS 2.5-m telescope at
APO by the SDSS observing team. J. Marriner, D. McGinnis (Fermilab),
G. Miknaitis, A. Becker, J. Frieman, J. Holtzman, and A. Riess also
report confirming spectroscopy for 2007nt, obtained with the ARC 3.5-m
telescope on Oct. 18 UT. M. Sako, C. D'Andrea, and N. Yasuda report
confirming spectroscopy for 2007nr, 2007nv, 2007nw, 2007nx, 2007ny,
and 2007oa that was obtained on the Subaru 8-m telescope on Oct. 19;
they add that a Subaru spectrum of 2007lx obtained on the same night
shows it to be a type-II supernova (this object was previously
reported on CBET 1102 as a possible type-II event). R. Romani,
C. Zheng, M. Sako, C. Wheeler, D. Schneider, and R. Bender, together
with U. Hopp (University of Munich) and W. Kollatschny (University
of Goettingen), report confirming spectroscopy that was obtained at
the Hobby-Eberly Telescope on Oct. 19 and 20 for 2007ns, 2007nu, and
2007nz. The discovery magnitudes tabulated below are all g magnitudes;
spectroscopic redshifts are given in the column labelled z. Peak dates
(all 2007) are approximate estimates either from fits to the early light
curves or from the spectra, with a typical uncertainty of plus-or-minus
several days; in cases where such estimates are either uncertain or
very discrepant, they are not reported. Spectroscopic types marked with
a question mark (?) imply that the type identification based on the
spectrum is uncertain. SN Discov. R.A. (2000.0) Decl. Mag. z Estimated
Type Date UT Peak Date 2007nr Sep. 15 1 01 59.47 + 0 40 55.0 21.5 0.14
Sep. 20 II-P 2007ns Sep. 22 2 37 02.97 - 0 51 59.8 22.5 0.37 Oct. 2
Ia 2007nt Oct. 3 3 06 43.80 - 0 45 14.5 22.1 0.21 Oct. 13 Ia 2007nu
Oct. 3 3 11 50.18 - 0 41 32.7 21.8 0.28 Oct. 12 Ia 2007nv Oct. 6 0 05
30.34 - 1 12 16.4 21.5 0.14 Oct. 5 II-P 2007nw Oct. 6 20 47 11.37 -
1 15 26.0 20.5 0.06 Oct. 1 II-P 2007nx Oct. 8 0 03 48.36 + 0 21 31.4
20.6 -- Oct. 5 IIn 2007ny Oct. 8 1 40 55.52 + 0 13 07.8 21.4 0.14
Oct. 12 II-P 2007nz Oct. 8 3 25 11.35 - 0 06 22.5 22.8 0.47 Oct. 12
Ia? 2007oa Oct. 9 22 13 51.35 - 0 55 13.0 21.8 -- Oct. 8 Ia
Title: Supernovae 2007ju and 2007kl-2007ld
Authors: Bassett, B.; Becker, A.; Bizyaev, D.; Brewington, H.; Choi,
C.; Cinabro, D.; D'Andrea, C.; Dembicky, J.; Depoy, D. L.; Dilday,
B.; Doi, M.; Eastman, J.; Frieman, J.; Gall, C.; Garnavich, P.;
Goobar, A.; Hogan, C.; Holtzman, J.; Im, M.; Jha, S.; Konishi, K.;
Krzesinski, J.; Lampeitl, H.; Kessler, R.; Ketzeback, B.; Long, D.;
Malanushenko, O.; Marriner, J.; McMillan, R.; Miknaitis, G.; Morokuma,
T.; Mosher, J.; Nichol, R.; Oravetz, D.; Pan, K.; Ostman, L.; Prieto,
J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Schneider, D.;
Simmons, A.; Smith, M.; Snedden, S.; Sollerman, J.; Stritzinger,
M.; Takanashi, N.; Tokita, K.; Taylor, M. F.; van der Heyden, K.;
Watters, S.; Yasuda, N.; Wheeler, C.; Zheng, C.; Bender, R.; Hopp,
U.; Kollatschny, W.; Assef, R.; Peeples, M.; Molla, M.; Castander,
F.; Miquel, R.; McGinnis, D.; Challis, P.; Narayan, G.; Kirshner, R.
Bibcode: 2007CBET.1098....1B
Altcode: 2007CBET.1098A...1B
Further to CBETs 611 and 1081, B. Bassett, South African Astronomical
Observatory; A. Becker, University of Washington (UW); D. Bizyaev
and H. Brewington, Apache Point Observatory (APO); C. Choi, Seoul
National University (SNU); D. Cinabro, Wayne State University (WSU);
C. D'Andrea, University of Pennsylvania (Penn); J. Dembicky, APO;
D. L. DePoy, Ohio State University (OSU); B. Dilday, University of
Chicago (UC); M. Doi, University of Tokyo (UoT); J. Eastman, OSU;
J. Frieman, Fermilab and UC; C. Gall, Dark Cosmology Centre (DCC),
University of Copenhagen; P. Garnavich, University of Notre Dame;
A. Goobar, Stockholm University; C. Hogan, UW; J. Holtzman, New Mexico
State University; M. Im, SNU; S. Jha, Rutgers University; K. Konishi,
UoT; J. Krzesinski, APO; H. Lampeitl, University of Portsmouth
(UP); R. Kessler, UC; B. Ketzeback, D. Long, O. Malanushenko,
and V. Malanushenko, APO; J. Marriner, Fermilab; R. McMillan, APO;
G. Miknaitis, Fermilab; T. Morokuma, National Astronomical Observatory
of Japan; J. Mosher, Penn; R. Nichol, UP; D. Oravetz and K. Pan, APO;
L. Ostman, Stockholm University; J. L. Prieto, OSU; M. Richmond,
Rochester Institute of Technology; A. Riess, Space Telescope
Science Institute; R. Romani, Stanford University (SU); M. Sako,
Penn; D. Schneider, Pennsylvania State University; A. Simmons, APO;
M. Smith, UP; S. Snedden, APO; J. Sollerman and M. Stritzinger,
DCC; N. Takanashi and K. Tokita, UoT; M. F. Taylor, WSU; K. van der
Heyden, University of Cape Town; S. Watters, APO; N. Yasuda, UoT;
C. Wheeler, University of Texas; and C. Zheng, SU, on behalf of the
Sloan Digital Sky Survey II collaboration, report the discovery of
nineteen supernovae on g, r, and i images taken with the SDSS 2.5-m
telescope at APO by the SDSS observing team. R. Romani, C. Zheng,
M. Sako, C. Wheeler, D. Schneider, R. Bender, U. Hopp (University
of Munich), and W. Kollatschny (University of Goettingen) add that
confirming spectroscopy was obtained at the Hobby- Eberly Telescope
on the nights of Sept. 23 (2007km) and Oct. 5 (2007kn, 2007kp, and
2007ku). R. Assef, M. Peeples, and J. Prieto (OSU) obtained confirming
spectroscopy of 2007ks at the Hiltner 2.4-m telescope on the night of
Sept. 28. A. Goobar, R. Nichol, and M. Molla, Centro de Investigaciones
Energeticas, Medioambientales y Tecnologicas, Madrid); F. Castander,
Institut de Ciencies de l'Espai, Barcelona; and R. Miquel, Institut de
Fisica d'Altes Energies, Barcelona), report that confirming spectroscopy
was taken by Castander and Miquel at the 3.58-m Telescopio Nazionale
Galileo on La Palma on the nights of Oct. 6-7 for 2007lb, 2007kt,
2007kw, 2007kz, and 2007ky. J. Marriner, D. McGinnis (Fermilab),
and G. Miknaitis report that confirming spectroscopy of 2007la and
2007lc was taken on the nights of Oct. 4 and 7, respectively. S. Jha,
Rutgers University; and P. Challis, G. Narayan, and R. Kirshner, Harvard
University, report that confirming spectroscopy was taken with the
Magellan Clay 6.5-m telescope (+ LDSS3) on the nights of Oct. 6-8 for
2007kx, 2007ld, 2007kl, 2007kr, 2007ko, 2007kq, 2007kv, and 2007ku. The
discovery magnitudes tabulated below are all g magnitudes; spectroscopic
redshifts are given in the column labelled z. Peak dates (all 2007) are
approximate estimates either from fits to the early light curves or from
the spectra, with a typical uncertainty of plus-or-minus several days;
in cases where such estimates are either uncertain or very discrepant,
they are not reported. Types marked with a question mark (?) imply
that the type identification based on the spectrum is uncertain.
Title: Supernovae 2007lf-2007mp
Authors: Bassett, B.; Becker, A.; Bizyaev, D.; Brewington, H.; Choi,
C.; Cinabro, D.; D'Andrea, C.; Dembicky, J.; Depoy, D. L.; Dilday,
B.; Doi, M.; Eastman, J.; Frieman, J.; Garnavich, P.; Goobar, A.;
Hogan, C.; Holtzman, J.; Im, M.; Jha, S.; Kessler, R.; Ketzeback, B.;
Konishi, K.; Krzesinski, J.; Lampeitl, H.; Leloudas, G.; Long, D.;
Malanushenko, O.; Marriner, J.; McMillan, R.; Miknaitis, G.; Morokuma,
T.; Mosher, J.; Nichol, R.; Oravetz, D.; Pan, K.; Ostman, L.; Prieto,
J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Schneider, D.;
Simmons, A.; Smith, M.; Snedden, S.; Sollerman, J.; Stritzinger, M.;
Takanashi, N.; Tokita, K.; Taylor, M. F.; van der Heyden, K.; Watters,
S.; Yasuda, N.; Wheeler, C.; Zheng, C.; Watson, L.; Filippenko,
A. V.; Silverman, J. M.; Foley, R. J.; Modjaz, M.; McGinnis, D.;
Aragon-Salamanca, A.; Bremer, M.; Turatto, M.; Ruiz-Lapuente, P.;
Castander, F.; Romer, A. K.; Collins, C.; Lucey, J.; Edge, A.
Bibcode: 2007CBET.1102....1B
Altcode: 2007CBET.1102A...1B
Further to CBETs 611 and 1098, B. Bassett, South African Astronomical
Observatory; A. Becker, University of Washington (UW); D. Bizyaev
and H. Brewington, Apache Point Observatory (APO); C. Choi, Seoul
National University (SNU); D. Cinabro, Wayne State University (WSU);
C. D'Andrea, University of Pennsylvania (Penn); J. Dembicky, APO;
D. L. DePoy, Ohio State University (OSU); B. Dilday, University of
Chicago (UC); M. Doi, University of Tokyo (UoT); J. Eastman, OSU;
J. Frieman, Fermilab and UC; P. Garnavich, University of Notre Dame;
A. Goobar, Stockholm University; C. Hogan, UW; J. Holtzman, New Mexico
State University; M. Im, SNU; S. Jha, Rutgers University; R. Kessler,
UC; B. Ketzeback, APO; K. Konishi, UoT; J. Krzesinski, APO; H. Lampeitl,
University of Portsmouth (UP); G. Leloudas, Dark Cosmology Centre (DCC),
University of Copenhagen; D. Long, O. Malanushenko, and V. Malanushenko,
APO; J. Marriner, Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab;
T. Morokuma, National Astronomical Observatory of Japan; J. Mosher,
Penn; R. Nichol, UP; D. Oravetz and K. Pan, APO; L. Ostman, Stockholm
University; J. L. Prieto, OSU; M. Richmond, Rochester Institute of
Technology; A. Riess, Space Telescope Science Institute; R. Romani,
Stanford University (SU); M. Sako, Penn; D. Schneider, Pennsylvania
State University; A. Simmons, APO; M. Smith, UP; S. Snedden, APO;
J. Sollerman and M. Stritzinger, DCC; N. Takanashi and K. Tokita,
UoT; M. F. Taylor, WSU; K. van der Heyden, University of Cape Town;
S. Watters, APO; N. Yasuda, UoT; C. Wheeler, University of Texas;
and C. Zheng, SU, on behalf of the Sloan Digital Sky Survey II
collaboration, report the discovery of thirty-seven supernovae on g,
r, and i images taken with the SDSS 2.5-m telescope at APO by the SDSS
observing team. L. Watson (OSU), J. Prieto, and C. Zheng have reported
on confirming spectroscopy of 2007lg, 2007li, 2007ll, 2007lt, 2007lv,
2007ly, 2007ma, 2007mc, 2007md, 2007mh, 2007mi, 2007mj, and 2007lx
obtained with the Hiltner 2.4-m telescope on Oct. 10-12 UT. P. Garnavich
has reported on confirming spectroscopy of 2007lj, 2007ln, 2007lo,
2007lp, 2007lz, 2007mb, 2007mg, and 2007mm obtained on the Kitt Peak
National Observatory 4-m telescope on Oct. 10 and 11. A. V. Filippenko,
J. M. Silverman, R. J. Foley, and M. Modjaz, University of California,
Berkeley, have reported on confirming spectroscopy of 2007lu and 2007lw
obtained on the Keck 10-m telescope on Oct. 14. J. Marriner, D. McGinnis
(Fermilab), G. Miknaitis, A. Becker, J. Frieman, J. Holtzman,
and A. Riess have reported on confirming spectroscopy of 2007lk and
2007lq obtained on the ARC 3.5-m telescope on the nights of Oct. 12 and
14. A. Aragon-Salamanca, University of Nottingham; M. Bremer, University
of Bristol; M. Turatto, University of Padova; A. Goobar; R. Nichol;
J. Sollerman; P. Ruiz-Lapuente, University of Barcelona; F. Castander,
University of Barcelona; A. K. Romer, University of Sussex; C. Collins,
Liverpool John Moores University; and J. Lucey and A. Edge, University
of Durham, have reported on confirming spectroscopy that was obtained
by the European Southern Observatory's New Technology Telescope on
Oct. 14 and 15 by M. Smith and G. Leloudas for 2007lf, 2007lh, 2007lm,
2007lr, 2007ls, 2007me, 2007mf, 2007ml, 2007mk, 2007mn, 2007mo, and
2007mp. The discovery magnitudes tabulated below are all g magnitudes;
spectroscopic redshifts are given in the column labelled z. Peak dates
(all 2007) are approximate estimates either from fits to the early light
curves or from the spectra, with a typical uncertainty of plus-or-minus
several days; in cases where such estimates are either uncertain or
very discrepant, they are not reported. Types marked with a question
mark (?) imply that the type identification based on the spectrum is
uncertain. SN Discov. R.A. (2000.0) Decl. Mag. z Estimated Type Date
UT Peak Date 2007lf Sep. 3 0 16 45.46 + 1 12 03.2 20.5 0.04 July 20
Ia 2007lg Sep. 22 0 46 03.95 - 0 00 37.4 21.9 0.12 Oct. 7 Ia 2007lh
Sep. 22 1 08 52.02 + 1 11 52.4 22.3 0.20 Oct. 5 Ia 2007li Sep. 22 1
13 04.01 - 0 32 24.0 21.4 0.12 Oct. 2 Ia 2007lj Sep. 30 21 28 41.93 -
0 04 02.1 20.6 0.04 Oct. 6 II 2007lk Oct. 3 1 57 50.11 - 0 23 53.2 21.0
0.22 Oct. 7 Ia? 2007ll Oct. 3 1 58 40.13 - 0 14 56.6 20.5 0.08 Oct. 4
II? 2007lm Oct. 3 3 13 40.44 + 0 37 47.9 21.4 0.21 Oct. 3 Ia 2007ln
Oct. 3 3 40 43.21 + 1 00 11.0 21.8 0.09 Oct. 10 Ia? 2007lo Oct. 3 22
35 56.06 + 0 36 33.2 22.1 0.14 Oct. 10 Ia 2007lp Oct. 3 22 43 41.01 +
0 25 16.9 22.2 0.15 Oct. 17 Ia 2007lq Oct. 6 0 23 07.87 + 0 59 00.5
21.5 0.23 Oct. 15 Ia? 2007lr Oct. 6 0 49 00.34 - 0 19 26.4 22.1 0.15
Oct. 14 Ia 2007ls Oct. 6 20 28 28.07 + 0 00 22.4 21.7 0.25 Oct. 12
Ia 2007lt Oct. 6 21 53 47.34 + 0 00 54.2 19.9 0.12 Oct. 8 Ia 2007lu
Oct. 6 22 01 34.90 - 0 15 24.8 22.3 0.32 Oct. 11 Ia 2007lv Oct. 6 23
24 47.98 + 0 56 40.4 20.5 0.12 Oct. 3 Ia? 2007lw Oct. 6 23 36 48.90 -
0 46 56.1 21.7 0.28 Oct. 9 Ia 2007lx Oct. 8 0 11 39.27 - 0 28 24.1 20.5
0.06 Oct. 10 II? 2007ly Oct. 8 0 22 53.38 + 0 46 33.4 20.1 0.08 Oct. 5
Ia 2007lz Oct. 8 0 31 23.21 + 0 19 08.1 21.0 0.09 Oct. 18 II 2007ma
Oct. 8 0 44 53.75 - 0 59 49.3 19.1 0.11 Oct. 13 Ia 2007mb Oct. 8 0
50 11.36 + 0 40 31.5 21.1 0.19 Oct. 8 Ia 2007mc Oct. 8 1 07 25.28 +
1 02 37.5 20.8 0.15 Oct. 18 Ia 2007md Oct. 8 1 21 56.85 - 1 00 47.8
20.7 0.05 Oct. 14 Ic 2007me Oct. 8 1 41 03.75 - 0 26 54.5 21.1 --
Oct. 18 Ia/Ic? 2007mf Oct. 8 1 58 55.14 - 1 01 37.5 21.3 0.20 Oct. 11
Ia 2007mg Oct. 8 3 06 33.83 + 0 47 35.9 21.1 0.16 Oct. 8 Ia 2007mh
Oct. 8 3 14 31.77 + 0 16 11.4 19.9 0.13 Oct. 9 Ia 2007mi Oct. 8 3 23
31.52 + 0 39 60.0 19.9 0.13 Oct. 6 Ia 2007mj Oct. 8 3 34 44.44 + 0 21
19.9 20.4 0.12 Oct. 10 Ia 2007mk Oct. 8 23 56 17.33 - 0 30 21.1 22.1
0.18 Oct. 22 Ia 2007ml Oct. 9 0 31 53.46 + 0 08 17.9 21.8 0.20 Oct. 21
Ia 2007mm Oct. 9 1 05 46.67 - 0 45 31.8 21.1 0.07 Oct. 18 Ia 2007mn
Oct. 9 2 05 03.96 + 0 10 28.4 21.9 0.08 Oct. 27 Ia 2007mo Oct. 9 22 11
33.85 + 0 45 53.2 21.7 0.24 Oct. 17 Ia 2007mp Oct. 12 21 16 35.63 -
0 46 11.6 21.5 0.06 -- Ia SN 2007lx in MCG +00-1-36 looks quite well
separated from the known BL Lac core of the galaxy and reasonably
separated from a bright knot within the host galaxy, both of which
have SDSS spectra and which look from the SDSS images like they may
show some sign of variability at a lower level than is seen for 2007lx.
Title: Supernovae 2007jy-2007kb
Authors: Bassett, B.; Becker, A.; Bizyaev, D.; Brewington, H.; Choi,
C.; Cinabro, D.; D'Andrea, C.; Dembicky, J.; Depoy, D. L.; Dilday,
B.; Doi, M.; Eastman, J.; Frieman, J.; Gall, C.; Garnavich, P.;
Goobar, A.; Hogan, C.; Holtzman, J.; Im, M.; Jha, S.; Konishi, K.;
Krzesinski, J.; Lampeitl, H.; Kessler, R.; Ketzeback, B.; Long, D.;
Malanushenko, O.; Marriner, J.; McMillan, R.; Miknaitis, G.; Morokuma,
T.; Mosher, J.; Nichol, R.; Oravetz, D.; Pan, K.; Ostman, L.; Prieto,
J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Schneider, D.;
Simmons, A.; Smith, M.; Snedden, S.; Sollerman, J.; Stritzinger,
M.; Takanashi, N.; Tokita, K.; Taylor, M. F.; van der Heyden, K.;
Watters, S.; Yasuda, N.; Wheeler, C.; Zheng, C.; Aragon-Salamanca,
A.; Bremer, M.; Turatto, M.; Ruiz-Lapuente, P.; Castander, F.; Romer,
A. K.; Collins, C.; Lucey, J.; Edge, A.
Bibcode: 2007CBET.1081....1B
Altcode: 2007CBET.1081A...1:
Further to CBETs 611 and 1079, B. Bassett, South African Astronomical
Observatory (SAAO); A. Becker, University of Washington (UW);
D. Bizyaev and H. Brewington, Apache Point Observatory (APO); C. Choi,
Seoul National University (SNU); D. Cinabro, Wayne State University
(WSU); C. D'Andrea, University of Pennsylvania (Penn); J. Dembicky,
APO; D. L. DePoy, Ohio State University (OSU); B. Dilday, University
of Chicago (UC); M. Doi, University of Tokyo (UoT); J. Eastman, OSU;
J. Frieman, Fermilab and UC; C. Gall, Dark Cosmology Centre (DCC),
University of Copenhagen; P. Garnavich, University of Notre Dame
(UND); A. Goobar, Stockholm University; C. Hogan, UW; J. Holtzman,
New Mexico State University; M. Im, SNU; S. Jha, Rutgers University;
K. Konishi, UoT; J. Krzesinski, APO; H. Lampeitl, University of
Portsmouth (UP); R. Kessler, UC; B. Ketzeback, D. Long, O. Malanushenko,
and V. Malanushenko, APO; J. Marriner, Fermilab; R. McMillan, APO;
G. Miknaitis, Fermilab; T. Morokuma, National Astronomical Observatory
of Japan; J. Mosher, Penn; R. Nichol, UP; D. Oravetz, K. Pan, APO;
L. Ostman, Stockholm University, J. L. Prieto, OSU; M. Richmond,
Rochester Institute of Technology; A. Riess, Space Telescope Science
Institute; R. Romani, Stanford University (SU); M. Sako, Penn;
D. Schneider, Pennsylvania State University; A. Simmons, APO; M. Smith,
UP; S. Snedden, APO; J. Sollerman and M. Stritzinger, DCC; N. Takanashi
and K. Tokita, UoT; M. F. Taylor, WSU; K. van der Heyden, University
of Cape Town; S. Watters, APO; N. Yasuda, UoT; C. Wheeler, University
of Texas; and C. Zheng, SU, on behalf of the Sloan Digital Sky Survey
(SDSS) II collaboration, report the discovery of four supernovae on
g, r, and i images taken with the SDSS 2.5-m telescope at APO by the
SDSS observing team. A. Aragon-Salamanca (University of Nottingham),
M. Bremer (University of Bristol), M. Turatto (University of Padova),
A. Goobar, R. Nichol, J. Sollerman, P. Ruiz-Lapuente (University of
Barcelona), F. Castander (Institut de Ciencies de l'Espai, Centre
d'Estudis Avancats de Blanes, Barcelona), A. K. Romer (University of
Sussex), C. Collins (Liverpool John Moores University), J. Lucey and
A. Edge (University of Durham) report that confirming spectroscopy
was obtained with the European Southern Observatory's New Technology
Telescope on the night of Sept. 19 for 2007kb, 2007jy, and 2007jz by
M. Smith and L. Ostman. M. Stritzinger, C. Gall, and J. Sollerman
report that spectroscopy was obtained by Stritzinger and Gall on
the Nordic Optical Telescope on the night of Sept. 19 for 2007ka. The
discovery magnitudes tabulated below are all g magnitudes; spectroscopic
redshifts are given in the column labelled z. Peak dates (all 2007) are
approximate estimates either from fits to the early light curves or from
the spectra, with a typical uncertainty of plus-or-minus several days;
in cases where such estimates are either uncertain or very discrepant,
they are not reported. Spectroscopic types marked with a question
mark (?) imply that the type identification based on the spectrum is
uncertain. SN Discov. R.A. (2000.0) Decl. Mag. z Estimated Type Date
UT Peak Date 2007jy Sep. 3 20 51 21.43 + 0 23 57.8 20.7 0.18 Sep. 4
Ib? 2007jz Sep. 5 1 23 56.01 + 1 15 18.0 21.7 0.22 Sep. 15 Ia 2007ka
Sep. 5 1 21 22.70 - 0 00 53.3 21.1 0.22 Sep. 12 Ia 2007kb Sep. 13 20
52 24.71 + 0 16 39.6 21.4 0.14 Sep. 15 Ia
Title: Supernovae 2007ix-2007jh
Authors: Bassett, B.; Becker, A.; Bizyaev, D.; Brewington, H.; Choi,
C.; Cinabro, D.; D'Andrea, C.; Dembicky, J.; Depoy, D. L.; Dilday, B.;
Doi, M.; Eastman, J.; Frieman, J.; Gall, C.; Garnavich, P.; Goobar,
A.; Hogan, C.; Holtzman, J.; Im, M.; Jha, S.; Konishi, K.; Krzesinski,
J.; Lampeitl, H.; Kessler, R.; Ketzeback, B.; Long, D.; Malanushenko,
O.; Marriner, J.; McMillan, R.; Miknaitis, G.; Morokuma, T.; Mosher,
J.; Nichol, R.; Oravetz, D.; Pan, K.; Prieto, J. L.; Richmond, M.;
Riess, A.; Romani, R.; Sako, M.; Schneider, D.; Simmons, A.; Smith, M.;
Snedden, S.; Sollerman, J.; Stritzinger, M.; Takanashi, N.; Tokita,
K.; Taylor, M. F.; van der Heyden, K.; Watters, S.; Yasuda, N.;
Wheeler, C.; Zheng, C.; Aragon-Salamanca, A.; Bremer, M.; Turatto,
M.; Ruiz-Lapuente, P.; Castander, F.; Romer, A. K.; Collins, C.;
Lucey, J.; Edge, A.; Ostman, L.; Bender, R.; Hopp, U.; Kollatschny, W.
Bibcode: 2007CBET.1076....1B
Altcode: 2007CBET.1076A...1:
Further to CBETs 611 and 1061, B. Bassett, South African Astronomical
Observatory (SAAO); A. Becker, University of Washington (UW);
D. Bizyaev and H. Brewington, Apache Point Observatory (APO); C. Choi,
Seoul National University (SNU); D. Cinabro, Wayne State University
(WSU); C. D'Andrea, University of Pennsylvania (Penn); J. Dembicky,
APO; D. L. DePoy, Ohio State University (OSU); B. Dilday, University
of Chicago (UC); M. Doi, University of Tokyo (UoT); J. Eastman,
OSU; J. Frieman, Fermilab and UC; C. Gall, University of Copenhagen
(UK); P. Garnavich, University of Notre Dame; A. Goobar, Stockholm
University; C. Hogan, UW; J. Holtzman, New Mexico State University;
M. Im, SNU; S. Jha, Rutgers University; K. Konishi, UoT; J. Krzesinski,
APO; H. Lampeitl, University of Portsmouth (UP); R. Kessler, UC;
B. Ketzeback, D. Long, O. Malanushenko, and V. Malanushenko, APO;
J. Marriner, Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab;
T. Morokuma, National Astronomical Observatory of Japan; J. Mosher,
Penn; R. Nichol, UP; D. Oravetz and K. Pan, APO; J. L. Prieto, OSU;
M. Richmond, Rochester Institute of Technology; A. Riess, Space
Telescope Science Institute; R. Romani, Stanford University (SU);
M. Sako, Penn; D. Schneider, Pennsylvania State University; A. Simmons,
APO; M. Smith, UP; S. Snedden, APO; J. Sollerman and M. Stritzinger,
UK; N. Takanashi and K. Tokita, UoT; M. F. Taylor, WSU; K. van der
Heyden, University of Cape Town; S. Watters, APO; N. Yasuda, UoT;
C. Wheeler, University of Texas, and C. Zheng, SU, on behalf of the
Sloan Digital Sky Survey II collaboration, report the discovery of
eleven supernovae on g, r, and i images taken with the SDSS 2.5-m
telescope at APO by the SDSS observing team. A. Aragon-Salamanca
(University of Nottingham), M. Bremer (University of Bristol),
M. Turatto (University of Padova), A. Goobar, R. Nichol, J. Sollerman,
P. Ruiz-Lapuente (University of Barcelona), F. Castander (University of
Barcelona), A. K. Romer (University of Sussex), C. Collins (Liverpool
John Moores University), and J. Lucey and A. Edge (University of Durham)
report that confirming spectroscopy was obtained of 2007ix, 2007ja,
2007jb, 2007jc, and 2007je at the European Southern Observatory's New
Technology Telescope on the night of Sept. 17 by M. Smith and L. Ostman
(Stockholm University). M. Stritzinger, C. Gall, and J. Sollerman report
that spectroscopy was obtained by Stritzinger and Gall on the Nordic
Optical Telescope on the night of Sept. 17 for 2007jd, 2007jf, 2007jg,
and 2007jh. R. Romani, C. Zheng, M. Sako, C. Wheeler, D. Schneider,
R. Bender and U. Hopp (University of Munich), and W. Kollatschny
(University of Goettingen) report that spectroscopy was obtained on
the night of Sept. 14 with the Hobby Eberly Telescope for 2007iy and
2007iz. The discovery magnitudes tabulated below are all g magnitudes;
spectroscopic redshifts are given in the column labelled z. Peak dates
(all 2007) are approximate estimates from fits to the early light
curves, with a typical uncertainty of plus-or- minus several days. SN
Discov. R.A. (2000.0) Decl. Mag. z Estimated Type Date UT Peak Date
2007ix Sept. 3 0 51 30.88 - 0 56 50.6 20.6 0.20 Sept. 9 Ia 2007iy
Sept. 3 20 41 05.96 - 0 25 19.6 22.9 0.37 Sept. 1 Ia 2007iz Sept. 3 21
17 35.50 + 0 18 56.3 22.2 0.25 Sep. 13 II 2007ja Sept. 3 23 30 05.49 +
0 43 32.3 21.7 0.09 Sept. 2 IIP 2007jb Sept. 4 0 26 33.79 + 0 02 31.1
21.1 0.28 Sept. 9 Ia 2007jc Sept. 4 23 23 48.62 - 1 08 10.1 20.2 0.13
Sept. 9 Ia/Ic 2007jd Sept. 5 2 59 53.37 + 1 09 38.6 22.5 0.07 Sep. 25
Ia 2007je Sep. 12 2 11 47.31 - 0 54 44.8 21.2 0.16 Sep. 23 Ia 2007jf
Sep. 14 0 12 22.32 - 1 06 19.6 21.0 0.07 Sep. 10 IIP 2007jg Sep. 14 3
29 50.82 + 0 03 24.6 18.4 0.04 Sep. 27? Ia 2007jh Sep. 15 3 36 01.54 +
1 06 12.2 19.2 0.04 Sep. 15 Ia
Title: Supernovae 2007ji-2007jx
Authors: Bassett, B.; Becker, A.; Bizyaev, D.; Brewington, H.; Choi,
C.; Cinabro, D.; D'Andrea, C.; Dembicky, J.; Depoy, D. L.; Dilday,
B.; Doi, M.; Eastman, J.; Frieman, J.; Gall, C.; Garnavich, P.;
Goobar, A.; Hogan, C.; Holtzman, J.; Im, M.; Jha, S.; Konishi, K.;
Krzesinski, J.; Lampeitl, H.; Kessler, R.; Ketzeback, B.; Long, D.;
Malanushenko, O.; Marriner, J.; McMillan, R.; Miknaitis, G.; Morokuma,
T.; Mosher, J.; Nichol, R.; Oravetz, D.; Pan, K.; Ostman, L.; Prieto,
J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Schneider, D.;
Simmons, A.; Smith, M.; Snedden, S.; Sollerman, J.; Stritzinger,
M.; Takanashi, N.; Tokita, K.; Taylor, M. F.; van der Heyden, K.;
Watters, S.; Yasuda, N.; Wheeler, C.; Zheng, C.; Aragon-Salamanca,
A.; Bremer, M.; Turatto, M.; Ruiz-Lapuente, P.; Castander, F.; Romer,
A. K.; Collins, C.; Lucey, J.; Edge, A.; Russell, M.
Bibcode: 2007CBET.1079....1B
Altcode: 2007CBET.1079A...1:
Further to CBETs 611 and 1076, B. Bassett, South African Astronomical
Observatory (SAAO); A. Becker, University of Washington (UW);
D. Bizyaev and H. Brewington, Apache Point Observatory (APO); C. Choi,
Seoul National University (SNU); D. Cinabro, Wayne State University
(WSU); C. D'Andrea, University of Pennsylvania (Penn); J. Dembicky,
APO; D. L. DePoy, Ohio State University (OSU); B. Dilday, University
of Chicago (UC); M. Doi, University of Tokyo (UoT); J. Eastman, OSU;
J. Frieman, Fermilab and UC; C. Gall, Dark Cosmology Centre (DCC),
University of Copenhagen; P. Garnavich, University of Notre Dame
(UND); A. Goobar, Stockholm University; C. Hogan, UW; J. Holtzman,
New Mexico State University; M. Im, SNU; S. Jha, Rutgers University;
K. Konishi, UoT; J. Krzesinski, APO; H. Lampeitl, University of
Portsmouth (UP); R. Kessler, UC; B. Ketzeback, D. Long, O. Malanushenko,
and V. Malanushenko, APO; J. Marriner, Fermilab; R. McMillan, APO;
G. Miknaitis, Fermilab; T. Morokuma, National Astronomical Observatory
of Japan; J. Mosher, Penn; R. Nichol, UP; D. Oravetz and K. Pan,
APO; L. Ostman, Stockholm University, J. L. Prieto, OSU; M. Richmond,
Rochester Institute of Technology; A. Riess, Space Telescope Science
Institute; R. Romani, Stanford University (SU); M. Sako, Penn;
D. Schneider, Pennsylvania State University; A. Simmons, APO; M. Smith,
UP; S. Snedden, APO; J. Sollerman and M. Stritzinger, DCC; N. Takanashi
and K. Tokita, UoT; M. F. Taylor, WSU; K. van der Heyden, University
of Cape Town; S. Watters, APO; N. Yasuda, UoT; C. Wheeler, University
of Texas, and C. Zheng, SU, on behalf of the Sloan Digital Sky Survey
(SDSS) II collaboration, report the discovery of sixteen supernovae on
g, r, and i images taken with the SDSS 2.5-m telescope at APO by the
SDSS observing team. A. Aragon-Salamanca (University of Nottingham),
M. Bremer (University of Bristol), M. Turatto (University of Padova),
A. Goobar, R. Nichol, J. Sollerman, P. Ruiz-Lapuente (University of
Barcelona), F. Castander (Institut de Ciencies de l'Espai, Centre
d'Estudis Avancats de Blanes, Barcelona), A. K. Romer (University of
Sussex), C. Collins (Liverpool John Moores University), and J. Lucey
and A. Edge (University of Durham) report that confirming spectroscopy
was obtained with the European Southern Observatory's New Technology
Telescope on the night of Sept. 18 for 2007ji, 2007jj, 2007jl, 2007jo,
2007js, 2007jv, and 2007jw by M. Smith and L. Ostman. M. Stritzinger,
C. Gall, and J. Sollerman report that spectroscopy was obtained by
Stritzinger and Gall on the Nordic Optical Telescope on the night of
Sept. 18 for 2007jk, 2007jp, 2007jq, 2007jt, and 2007jx. Garnavich and
M. Russell (UND) report that confirming spectroscopy was obtained by
them on the Kitt Peak National Observatory 4-m telescope on Sept. 18 for
2007jm, 2007jn, 2007jr, and 2007ju. The discovery magnitudes tabulated
below are all g magnitudes; spectroscopic redshifts are given in the
column labelled z. Peak dates (all 2007) are approximate estimates
either from fits to the early light curves or from the spectra, with
a typical uncertainty of plus-or-minus several days; in cases where
such estimates are either uncertain or very discrepant, they are not
reported. Spectroscopic types marked with a question mark (?) imply
that the type identification based on the spectrum is uncertain. SN
Discov. R.A. (2000.0) Decl. Mag. z Estimated Type Date UT Peak Date
2007ji Sept. 3 0 38 48.36 - 0 10 45.5 21.1 0.18 -- Ia 2007jj Sept. 3 1
45 26.73 - 0 01 09.9 20.7 0.24 Sept. 1 Ia 2007jk Sept. 3 2 55 05.64 -
0 08 50.8 21.9 0.18 Sep. 13 Ia 2007jl Sept. 3 21 29 16.94 - 1 00 11.5
21.7 0.26 Sep. 15 Ia 2007jm Sept. 3 21 55 38.59 - 0 10 36.3 20.5 0.09
Aug. 9 IIn 2007jn Sept. 3 22 47 31.99 + 0 24 52.5 20.6 0.06 Sept. 3
II 2007jo Sept. 3 23 10 12.58 - 0 55 53.1 20.6 0.19 Aug. 30 Ia 2007jp
Sept. 3 23 44 41.24 - 0 01 48.3 20.4 0.18 Sept. 8 Ia 2007jq Sept. 4 0
11 58.61 + 0 59 53.4 20.1 0.16 Aug. 30 Ia 2007jr Sept. 4 2 22 57.28 +
1 01 32.7 18.8 0.09 Aug. 24 Ia 2007js Sept. 5 20 36 48.67 + 0 05 54.4
20.2 0.17 -- Ia 2007jt Sep. 12 2 28 32.78 - 1 02 31.6 20.4 0.14 Sep. 20
Ia 2007ju Sep. 14 0 11 50.46 - 0 20 21.1 19.9 0.06 Sep. 18 Ic? 2007jv
Sep. 14 0 15 36.91 - 0 23 21.6 21.0 0.16 Sep. 20 Ia? 2007jw Sep. 14 2
02 32.74 - 1 05 21.0 21.6 0.14 Sep. 23 Ia 2007jx Sep. 15 20 02 32.82 +
0 22 18.1 21.0 0.18 Sep. 17 Ia
Title: Supernovae 2007hw-2007ie
Authors: Bassett, B.; Becker, A.; Brewington, H.; Choi, C.; Cinabro,
D.; D'Andrea, C.; Dembicky, J.; Depoy, D. L.; Dilday, B.; Doi, M.;
Eastman, J.; Frieman, J.; Garnavich, P.; Harvanek, M.; Hogan, C.;
Holtzman, J.; Im, M.; Jha, S.; Konishi, K.; Krzesinski, J.; Lampeitl,
H.; Kessler, R.; Ketzeback, B.; Long, D.; Malanushenko, O.; Marriner,
J.; McMillan, R.; Miknaitis, G.; Morokuma, T.; Mosher, J.; Nichol,
R.; Pan, K.; Prieto, J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako,
M.; Schneider, D.; Smith, M.; Snedden, S.; Takanashi, N.; Tokita, K.;
van der Heyden, K.; Watters, S.; Yasuda, N.; Wheeler, C.; Zheng, C.;
Atlee, D.
Bibcode: 2007CBET.1057....1B
Altcode: 2007CBET.1057A...1:
Further to CBETs 611 and 786, B. Bassett, South African Astronomical
Observatory; A. Becker, University of Washington (UW); H. Brewington,
Apache Point Observatory (APO); C. Choi, Seoul National University
(SNU); D. Cinabro, Wayne State University; C. D'Andrea, University
of Pennsylvania (Penn); J. Dembicky, APO; D. L. DePoy, Ohio State
University (OSU); B. Dilday, University of Chicago (UC); M. Doi,
University of Tokyo (UT); J. Eastman, OSU; J. Frieman, Fermilab and UC;
P. Garnavich, University of Notre Dame; M. Harvanek, APO; C. Hogan,
UW; J. Holtzman, New Mexico State University; M. Im, SNU; S. Jha,
Rutgers University; K. Konishi, UT; J. Krzesinski, APO; H. Lampeitl,
University of Portsmouth (UP); R. Kessler, UC; B. Ketzeback, D. Long,
O. Malanushenko, and V. Malanushenko, APO; J. Marriner, Fermilab;
R. McMillan, APO; G. Miknaitis, Fermilab; T. Morokuma, National
Astronomical Observatory of Japan; J. Mosher, Penn; R. Nichol, UP;
K. Pan, APO; J. L. Prieto, OSU; M. Richmond, Rochester Institute of
Technology; A. Riess, Space Telescope Science Institute; R. Romani,
Stanford University (SU); M. Sako, Penn; D. Schneider, Pennsylvania
State University; M. Smith, UP; S. Snedden, APO; N. Takanashi and
K. Tokita, UT; K. van der Heyden, University of Cape Town; S. Watters,
APO; N. Yasuda, UT; C. Wheeler, University of Texas; and C. Zheng,
SU, on behalf of the Sloan Digital Sky Survey (SDSS) II collaboration,
report the discovery of nine supernovae on g, r, and i images taken with
the SDSS 2.5-m telescope at APO by the SDSS observing team. D. Atlee,
J. Eastman, and J. Prieto (OSU) report that spectroscopy obtained with
the Hiltner 2.4-m telescope at MDM Observatory on the nights of Sept. 8
and 9 shows six of the new objects to be type-Ia supernovae, one to
be a probable type-Ia supernova, and two to be type-II supernovae. The
discovery magnitudes tabulated below are all g magnitudes. Spectroscopic
redshifts are given in the column labelled z. Peak dates are approximate
estimates from the spectra, with a typical uncertainty of +/- 2 to
3 days. SN Discov. R.A. (2000.0) Decl. Mag. z Estimated Type Date
UT Peak Date 2007hw Sept. 3 2 03 35.16 + 0 47 10.3 20.4 0.08 Sept. 6
II 2007hx Sept. 3 2 06 27.08 - 0 53 58.3 19.5 0.08 Sept. 8 Ia 2007hy
Sept. 3 3 39 42.33 + 1 05 32.2 20.9 0.19 Sept. 3 Ia 2007hz Sept. 3 21
03 08.95 - 1 01 45.1 19.7 0.14 Sept. 8 Ia 2007ia Sept. 4 3 43 10.06 +
0 06 08.9 20.0 0.13 Sept. 5 Ia 2007ib Sept. 4 23 15 44.56 + 0 27 25.6
20.4 0.03 Sep. 11 II 2007ic Sept. 5 0 05 57.98 + 1 06 11.1 20.0 0.14
Aug. 29 Ia 2007id Sept. 5 21 46 00.49 - 1 13 03.9 20.2 0.16 Aug. 29
Ia 2007ie Sept. 5 22 17 36.69 + 0 36 48.0 20.1 0.10 Aug. 27 Ia?
Title: Supernovae 2007ih-2007ik
Authors: Bassett, B.; Becker, A.; Bizyaev, D.; Brewington, H.; Choi,
C.; Cinabro, D.; D'Andrea, C.; Dembicky, J.; Depoy, D. L.; Dilday,
B.; Doi, M.; Eastman, J.; Frieman, J.; Garnavich, P.; Hogan, C.;
Holtzman, J.; Im, M.; Jha, S.; Konishi, K.; Krzesinski, J.; Lampeitl,
H.; Kessler, R.; Ketzeback, B.; Long, D.; Malanushenko, O.; Marriner,
J.; McMillan, R.; Miknaitis, G.; Morokuma, T.; Mosher, J.; Nichol, R.;
Oravetz, D.; Pan, K.; Prieto, J. L.; Richmond, M.; Riess, A.; Romani,
R.; Sako, M.; Schneider, D.; Simmons, A.; Smith, M.; Snedden, S.;
Takanashi, N.; Tokita, K.; van der Heyden, K.; Watters, S.; Yasuda,
N.; Wheeler, C.; Zheng, C.; Atlee, D.
Bibcode: 2007CBET.1061....1B
Altcode: 2007CBET.1061A...1:
Further to CBETs 611 and 1057, B. Bassett, South African Astronomical
Observatory; A. Becker, University of Washington (UW); D. Bizyaev and
H. Brewington, Apache Point Observatory (APO); C. Choi, Seoul National
University (SNU); D. Cinabro, Wayne State University; C. D'Andrea,
University of Pennsylvania (Penn); J. Dembicky, APO; D. L. DePoy,
Ohio State University (OSU); B. Dilday, University of Chicago (UC);
M. Doi, University of Tokyo (UT); J. Eastman, OSU; J. Frieman,
Fermilab and UC; P. Garnavich, University of Notre Dame; C. Hogan,
UW; J. Holtzman, New Mexico State University; M. Im, SNU; S. Jha,
Rutgers University; K. Konishi, UT; J. Krzesinski, APO; H. Lampeitl,
University of Portsmouth (UP); R. Kessler, UC; B. Ketzeback, D. Long,
O. Malanushenko, and V. Malanushenko, APO; J. Marriner, Fermilab;
R. McMillan, APO; G. Miknaitis, Fermilab; T. Morokuma, National
Astronomical Observatory of Japan; J. Mosher, Penn; R. Nichol, UP;
D. Oravetz and K. Pan, APO; J. L. Prieto, OSU; M. Richmond, Rochester
Institute of Technology; A. Riess, Space Telescope Science Institute;
R. Romani, Stanford University (SU); M. Sako, Penn; D. Schneider,
Pennsylvania State University; A. Simmons, APO; M. Smith, UP;
S. Snedden, APO; N. Takanashi and K. Tokita, UT; K. van der Heyden,
University of Cape Town; S. Watters, APO; N. Yasuda, UT; C. Wheeler,
University of Texas; and C. Zheng, SU, on behalf of the Sloan Digital
Sky Survey (SDSS) II collaboration, report the discovery of four type-Ia
supernovae on g, r, and i images taken with the SDSS 2.5-m telescope at
APO by the SDSS observing team. Spectroscopy was obtained by D. Atlee,
J. Eastman, and J. Prieto (OSU) with the Hiltner 2.4-m telescope
at MDM Observatory on the night of Sept. 10; 2007ii is a probable
type-Ia supernova. The discovery magnitudes tabulated below are all g
magnitudes; spectroscopic redshifts are given in the column labelled
z. Peak dates in 2007 are approximate estimates from the spectra, with
a typical uncertainty of +/- 2 to 3 days. SN Discov. R.A. (2000.0)
Decl. Mag. z Estimated Date UT Peak Date 2007ih Sept. 3 21 33 10.77 -
0 57 36.5 20.8 0.17 Sep. 10 2007ii Sept. 4 0 33 34.05 + 0 59 05.7 21.0
0.27 Sept. 3 2007ij Sept. 4 23 57 21.96 + 0 06 21.1 20.6 0.18 Sep. 11
2007ik Sept. 5 22 38 53.72 - 1 10 01.5 20.9 0.18 Sep. 12
Title: The Hercules-Aquila Cloud
Authors: Belokurov, V.; Evans, N. W.; Bell, E. F.; Irwin, M. J.;
Hewett, P. C.; Koposov, S.; Rockosi, C. M.; Gilmore, G.; Zucker,
D. B.; Fellhauer, M.; Wilkinson, M. I.; Bramich, D. M.; Vidrih,
S.; Rix, H. -W.; Beers, T. C.; Schneider, D. P.; Barentine, J. C.;
Brewington, H.; Brinkmann, J.; Harvanek, M.; Krzesinski, J.; Long,
D.; Pan, K.; Snedden, S. A.; Malanushenko, O.; Malanushenko, V.
Bibcode: 2007ApJ...657L..89B
Altcode: 2007astro.ph..1790B
We present evidence for a substantial overdensity of stars in the
direction of the constellations of Hercules and Aquila. The cloud is
centered at a Galactic longitude of l~40deg and extends
above and below the Galactic plane by at least 50°. Given its
off-centeredness and height, it is unlikely that the Hercules-Aquila
cloud is related to the bulge or thick disk. More likely, this is a new
structural component of the Galaxy that passes through the disk. The
cloud stretches ~80° in longitude. Its heliocentric distance lies
between 10 and 20 kpc so that the extent of the cloud in projection is
~20 kpc by ~15 kpc. It has an absolute magnitude of Mv=-13,
and its stellar population appears to be comparable to, but somewhat
more metal-rich than, M92.
Title: Sunspots with the Strongest Magnetic Fields
Authors: Livingston, W.; Harvey, J. W.; Malanushenko, O. V.;
Webster, L.
Bibcode: 2006SoPh..239...41L
Altcode: 2006SoPh..tmp...85L
The strongest observed solar magnetic fields are found in sunspot
umbrae and associated light bridges. We investigate systematic
measurements of approximately 32 000 sunspot groups observed from 1917
through 2004 using data from Mt. Wilson, Potsdam, Rome and Crimea
observatories. Isolated observations from other observatories are
also included. Corrections to Mt. Wilson measurements are required
and applied. We found 55 groups (0.2%) with at least one sunspot
with one magnetic field measurement of at least 4000 G including five
measurements of at least 5000 G and one spot with a record field of
6100 G. Although typical strong-field spots are large and show complex
structure in white light, others are simple in form. Sometimes the
strongest fields are in light bridges that separate opposite polarity
umbras. The distribution of strongest measured fields above 3 kG appears
to be continuous, following a steep power law with exponent about
−9.5. The observed upper limit of 5 - 6 kG is consistent with the
idea that an umbral field has a more or less coherent structure down
to some depth and then fragments. We find that odd-numbered sunspot
cycles usually contain about 30% more total sunspot groups but 60%
fewer >3 kG spots than preceding even-numbered cycles.
Title: Supernovae 2006sv-2006tc
Authors: Bassett, B.; Becker, A.; Brewington, H.; Choi, C.; Cinabro,
D.; Dejongh, F.; Dembicky, J.; Depoy, D. L.; Dilday, B.; Doi, M.;
Frieman, J.; Garnavich, P.; Harvanek, M.; Hogan, C.; Holtzman, J.; Im,
M.; Jha, S.; Konishi, K.; Krzesinski, J.; Lampeitl, H.; Kessler, R.;
Ketzeback, B.; Long, D.; Malanushenko, O.; Marriner, J.; McGinnis,
D.; McMillan, R.; Miknaitis, G.; Morokuma, T.; Nichol, R.; Pan, K.;
Prieto, J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Saurage,
G.; Schneider, D.; Smith, M.; Snedden, S.; Takanashi, N.; Tokita, K.;
van der Heyden, K.; Watters, S.; Wheeler, C.; Yasuda, N.; Zheng, C.;
Hopp, U.; Kollatschny, W.
Bibcode: 2006CBET..786....1B
Altcode:
Further to CBETs 611 and 770, B. Bassett, South African Astronomical
Observatory (SAAO); A. Becker, University of Washington (UW);
H. Brewington, Apache Point Observatory (APO); C. Choi, Seoul National
University (SNU); D. Cinabro, Wayne State University; F. DeJongh,
Fermilab; J. Dembicky, APO; D. L. DePoy, Ohio State University (OSU);
B. Dilday, University of Chicago (UC); M. Doi, University of Tokyo
(UoT); J. Frieman, Fermilab and UC; P. Garnavich, University of
Notre Dame; M. Harvanek, APO; C. Hogan, UW; J. Holtzman, New Mexico
State University; M. Im, SNU; S. Jha, Stanford University (SU);
K. Konishi, UoT; J. Krzesinski, APO; H. Lampeitl, Space Telescope
Science Institute (STScI); R. Kessler, UC; B. Ketzeback, D. Long,
O. Malanushenko, and V. Malanushenko, APO; J. Marriner and D. McGinnis,
Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab; T. Morokuma, UoT;
R. Nichol, University of Portsmouth (UP); K. Pan, APO; J. L. Prieto,
OSU; M. Richmond, Rochester Institute of Technology; A. Riess, STScI;
R. Romani, SU; M. Sako, University of Pennsylvania; G. Saurage,
APO; D. Schneider, Pennsylvania State University; M. Smith, UP;
S. Snedden, APO; N. Takanashi and K. Tokita, UoT; K. van der Heyden,
SAAO; S. Watters, APO; C. Wheeler, University of Texas; N. Yasuda,
UoT; and C. Zheng, SU, on behalf of the Sloan Digital Sky Survey II
collaboration, report the discovery of eight new supernovae on multiple
g, r, and i images taken with the SDSS 2.5-m telescope at APO by the
SDSS observing team. Romani, Zheng, Sako, Wheeler, and Schneider,
together with U. Hopp (University of Munich) and W. Kollatschny
(University of Goettingen), report that spectroscopic observations with
the Hobby Eberly Telescope on Dec. 13, 15, and 18 UT indicate that seven
of the new objects are type-Ia supernovae and that the eighth, 2006sz,
is a probable type-Ia supernova. The discovery magnitudes tabulated
below are all SDSS g magnitudes. Spectroscopic redshifts are given
in the column labelled "z". Peak dates (all 2006) are approximate
estimates from early fits to the multi-band light curves or from the
spectra. SN Discov. R.A. (2000.0) Decl. Mag. z Estimated Date UT Peak
Date 2006sv Nov. 9 22 25 28.25 + 0 15 55.0 22.0 0.30 Nov. 19 2006sw
Nov. 14 1 05 00.20 - 0 22 28.7 22.7 0.33 Nov. 25 2006sx Nov. 16 0 31
48.32 - 0 30 50.2 21.9 0.23 Nov. 24 2006sy Nov. 16 2 21 05.20 + 0 49
42.2 22.6 0.21 Dec. 1 2006sz Nov. 16 23 42 52.46 - 0 33 22.9 22.6 0.19
Nov. 21 2006ta Nov. 19 3 29 50.42 + 0 17 42.3 22.0 0.29 Nov. 27 2006tb
Nov. 19 3 45 15.49 - 0 07 42.8 22.3 0.30 Nov. 18 2006tc Nov. 23 3 08
01.96 + 0 56 36.4 22.3 0.21 Dec. 1
Title: Supernova 2006rz
Authors: Bassett, B.; Becker, A.; Brewington, H.; Choi, C.; Cinabro,
D.; Dejongh, F.; Dembicky, J.; Depoy, D. L.; Dilday, B.; Doi, M.;
Frieman, J.; Garnavich, P.; Harvanek, M.; Hogan, C.; Holtzman, J.; Im,
M.; Jha, S.; Konishi, K.; Krzesinski, J.; Lampeitl, H.; Kessler, R.;
Ketzeback, B.; Long, D.; Malanushenko, O.; Marriner, J.; McGinnis,
D.; McMillan, R.; Miknaitis, G.; Morokuma, T.; Nichol, R.; Pan, K.;
Prieto, J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Saurage,
G.; Schneider, D.; Smith, M.; Snedden, S.; Takanashi, N.; Tokita, K.;
van der Heyden, K.; Watters, S.; Wheeler, C.; Yasuda, N.; Zheng, C.;
Eastman, J.; Watson, L.; Assef, R.; Schlesinger, K.; Crotts, A.
Bibcode: 2006CBET..770....1B
Altcode:
Further to CBETs 611 and 762, B. Bassett, South African Astronomical
Observatory (SAAO); A. Becker, University of Washington (UW);
H. Brewington, Apache Point Observatory (APO); C. Choi, Seoul National
University (SNU); D. Cinabro, Wayne State University; F. DeJongh,
Fermilab; J. Dembicky, APO; D. L. DePoy, Ohio State University (OSU);
B. Dilday, University of Chicago (UC); M. Doi, University of Tokyo
(UoT); J. Frieman, Fermilab and UC; P. Garnavich, University of
Notre Dame; M. Harvanek, APO; C. Hogan, UW; J. Holtzman, New Mexico
State University; M. Im, SNU; S. Jha, Stanford University (SU);
K. Konishi, UoT; J. Krzesinski, APO; H. Lampeitl, Space Telescope
Science Institute (STScI); R. Kessler, UC; B. Ketzeback, D. Long,
O. Malanushenko, and V. Malanushenko, APO; J. Marriner and D. McGinnis,
Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab; T. Morokuma, UoT;
R. Nichol, University of Portsmouth (UP); K. Pan, APO; J. L. Prieto,
OSU; M. Richmond, Rochester Institute of Technology; A. Riess, STScI;
R. Romani, SU; M. Sako, University of Pennsylvania; G. Saurage,
APO; D. Schneider, Pennsylvania State University; M. Smith, UP;
S. Snedden, APO; N. Takanashi and K. Tokita, UoT; K. van der Heyden,
SAAO; S. Watters, APO; C. Wheeler, University of Texas; N. Yasuda,
UoT; and C. Zheng, SU, on behalf of the Sloan Digital Sky Survey II
collaboration, report the discovery of a new supernova (at magnitudes
g = 20.0, r = 19.7, and i = 20.0) on images taken with the SDSS
2.5-m telescope at APO by the SDSS observing team on Nov. 26 UT. SN
2006rz is located at R.A. = 3h46m06s.78, Decl. = +0o23'23".1 (equinox
2000.0), essentially coincident with the previously catalogued galaxy
SDSS J034606.87+002325.0, an emission-line galaxy with a redshift of
0.0309. J. Eastman, J. L. Prieto, L. Watson, R. Assef, K. Schlesinger,
D. DePoy, OSU; and A. Crotts, Columbia University, report that
spectroscopic observations with the Hiltner 2.4-m telescope at MDM
Observatory on Nov. 30 indicate that 2006rz is a type-Ia supernova
that is now (Dec. 5) around maximum light.
Title: Supernovae 2006oy-2006qm
Authors: Bassett, B.; Becker, A.; Brewington, H.; Choi, C.; Cinabro,
D.; Dejongh, F.; Dembicky, J.; Depoy, D. L.; Dilday, B.; Doi, M.;
Frieman, J.; Garnavich, P.; Harvanek, M.; Hogan, C.; Holtzman, J.; Im,
M.; Jha, S.; Konishi, K.; Krzesinski, J.; Lampeitl, H.; Kessler, R.;
Ketzeback, B.; Long, D.; Malanushenko, O.; Marriner, J.; McGinnis,
D.; McMillan, R.; Miknaitis, G.; Morokuma, T.; Nichol, R.; Pan, K.;
Prieto, J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Saurage,
G.; Schneider, D.; Smith, M.; Snedden, S.; Takanashi, N.; Tokita,
K.; van der Heyden, K.; Watters, S.; Wheeler, C.; Yasuda, N.; Zheng, C.
Bibcode: 2006CBET..762....1B
Altcode:
Further to CBETs 611 and 745, B. Bassett, South African Astronomical
Observatory (SAAO); A. Becker, University of Washington (UW);
H. Brewington, Apache Point Observatory (APO); C. Choi, Seoul National
University (SNU); D. Cinabro, Wayne State University; F. DeJongh,
Fermilab; J. Dembicky, APO; D. L. DePoy, Ohio State University (OSU);
B. Dilday, University of Chicago (UC); M. Doi, University of Tokyo
(UoT); J. Frieman, Fermilab and UC; P. Garnavich, University of
Notre Dame; M. Harvanek, APO; C. Hogan, UW; J. Holtzman, New Mexico
State University; M. Im, SNU; S. Jha, Stanford University (SU);
K. Konishi, UoT; J. Krzesinski, APO; H. Lampeitl, Space Telescope
Science Institute (STScI); R. Kessler, UC; B. Ketzeback, D. Long,
O. Malanushenko, and V. Malanushenko, APO; J. Marriner and D. McGinnis,
Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab; T. Morokuma, UoT;
R. Nichol, University of Portsmouth (UP); K. Pan, APO; J. L. Prieto,
OSU; M. Richmond, Rochester Institute of Technology; A. Riess, STScI;
R. Romani, SU; M. Sako, University of Pennsylvania; G. Saurage,
APO; D. Schneider, Pennsylvania State University; M. Smith, UP;
S. Snedden, APO; N. Takanashi and K. Tokita, UoT; K. van der Heyden,
SAAO; S. Watters, APO; C. Wheeler, University of Texas; N. Yasuda,
UoT; and C. Zheng, SU, on behalf of the Sloan Digital Sky Survey II
collaboration, report the discovery of forty-one new supernovae on
multiple g, r, and i images taken with the SDSS 2.5-m telescope at
APO by the SDSS observing team, with 34 of them confirmed as type-Ia
supernovae, one as a type-I supernova, one as a probable type-Ia
supernova, two as type-II events, one as a probable type-II supernova,
one as a probable type-Ib supernova, and one as a probable type-Ic
hypernova.
Title: Supernovae 2006mz-2006ne
Authors: Bassett, B.; Becker, A.; Brewington, H.; Choi, C.; Cinabro,
D.; Dejongh, F.; Dembicky, J.; Depoy, D. L.; Dilday, B.; Doi, M.;
Frieman, J.; Garnavich, P.; Harvanek, M.; Hogan, C.; Holtzman, J.; Im,
M.; Jha, S.; Konishi, K.; Krzesinski, J.; Lampeitl, H.; Kessler, R.;
Ketzeback, B.; Long, D.; Malanushenko, O.; Marriner, J.; McGinnis,
D.; McMillan, R.; Miknaitis, G.; Morokuma, T.; Nichol, R.; Pan,
K.; Prieto, J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.;
Saurage, G.; Schneider, D.; Smith, M.; Snedden, S.; Takanashi, N.;
Tokita, K.; van der Heyden, K.; Watters, S.; Wheeler, C.; Yasuda,
N.; Zheng, C.; Eastman, J.; Watson, L.; Assef, R.; Schlesinger, K.;
Crotts, A.; Hopp, U.; Kollatschny, W.
Bibcode: 2006CBET..735....1B
Altcode: 2006CBET..735A...1B
Further to CBETs 611 and 726, B. Bassett, South African Astronomical
Observatory (SAAO); A. Becker, University of Washington (UW);
H. Brewington, Apache Point Observatory (APO); C. Choi, Seoul National
University (SNU); D. Cinabro, Wayne State University; F. DeJongh,
Fermilab; J. Dembicky, APO; D. L. DePoy, Ohio State University (OSU);
B. Dilday, University of Chicago (UC); M. Doi, University of Tokyo
(UoT); J. Frieman, Fermilab and UC; P. Garnavich, University of
Notre Dame; M. Harvanek, APO; C. Hogan, UW; J. Holtzman, New Mexico
State University; M. Im, SNU; S. Jha, Stanford University (SU);
K. Konishi, UoT; J. Krzesinski, APO; H. Lampeitl, Space Telescope
Science Institute (STScI); R. Kessler, UC; B. Ketzeback, D. Long,
O. Malanushenko, and V. Malanushenko, APO; J. Marriner and D. McGinnis,
Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab; T. Morokuma, UoT;
R. Nichol, University of Portsmouth (UP); K. Pan, APO; J. L. Prieto,
OSU; M. Richmond, Rochester Institute of Technology; A. Riess, STScI;
R. Romani, SU; M. Sako, University of Pennsylvania; G. Saurage,
APO; D. Schneider, Pennsylvania State University; M. Smith, UP;
S. Snedden, APO; N. Takanashi and K. Tokita, UoT; K. van der Heyden,
SAAO; S. Watters, APO; C. Wheeler, University of Texas; N. Yasuda,
UoT; and C. Zheng, SU, on behalf of the Sloan Digital Sky Survey II
collaboration, report the discovery of six new supernovae on multiple
g, r, and i images taken with the SDSS 2.5-m telescope at APO by the
SDSS observing team. J. Eastman, J. L. Prieto, L. Watson, R. Assef,
K. Schlesinger, and D. DePoy, OSU; and A. Crotts, Columbia University,
report that spectroscopic observations with the Hiltner 2.4-m at MDM
Observatory on Nov. 8 and 10 UT indicate that 2006nb, 2006nc, and 2006nd
are type-Ia supernovae and that 2006ne appears to be a young, highly
reddened type-Ia event. Romani, Zheng, Sako, Wheeler, and Schneider,
together with U. Hopp (University of Munich) and W. Kollatschny
(University of Goettingen), report that spectroscopic observations with
the Hobby Eberly Telescope on Oct. 30 and Nov. 10 indicate that 2006mz
and 2006na are type-Ia supernovae. The discovery magnitudes tabulated
below are all SDSS g magnitudes. Spectroscopic redshifts are given
in the column labelled "z". Peak dates (all 2006) are approximate
estimates from early fits to the multi-band light curves or from the
spectra. SN Discov. R.A. (2000.0) Decl. Mag. z Estimated Date UT Peak
Date 2006mz Oct. 17 21 10 34.81 - 0 07 23.5 22.5 0.25 Oct. 28 2006na
Oct. 21 2 11 19.07 - 0 59 53.7 22.0 0.32 Oct. 21 2006nb Oct. 22 2 26
53.40 - 0 19 40.1 22.8 0.21 Nov. 8 2006nc Oct. 27 0 55 22.50 - 0 23
19.7 21.5 0.12 Nov. 11 2006nd Oct. 28 22 44 59.06 - 1 00 23.8 22.1
0.13 Nov. 11 2006ne Nov. 8 1 13 37.84 + 0 25 25.9 21.1 0.05 Nov. 18
Title: Supernovae 2006ns-2006ob
Authors: Bassett, B.; Becker, A.; Brewington, H.; Choi, C.; Cinabro,
D.; Dejongh, F.; Dembicky, J.; Depoy, D. L.; Dilday, B.; Doi, M.;
Frieman, J.; Garnavich, P.; Harvanek, M.; Hogan, C.; Holtzman, J.; Im,
M.; Jha, S.; Konishi, K.; Krzesinski, J.; Lampeitl, H.; Kessler, R.;
Ketzeback, B.; Long, D.; Malanushenko, O.; Marriner, J.; McGinnis,
D.; McMillan, R.; Miknaitis, G.; Morokuma, T.; Nichol, R.; Pan, K.;
Prieto, J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Saurage,
G.; Schneider, D.; Smith, M.; Snedden, S.; Takanashi, N.; Tokita, K.;
van der Heyden, K.; Watters, S.; Wheeler, C.; Yasuda, N.; Zheng, C.;
Hopp, U.; Kollatschny, W.; Stritzinger, M.; Sollerman, J.; Goobar,
A.; Leloudas, G.; Henriksen, C.; Blondin, S.; Modjaz, M.; Kirshner,
R.; Challis, P.; Macri, L.
Bibcode: 2006CBET..743....1B
Altcode: 2006CBET..743A...1B
Further to CBETs 611 and 740, B. Bassett, South African Astronomical
Observatory (SAAO); A. Becker, University of Washington (UW);
H. Brewington, Apache Point Observatory (APO); C. Choi, Seoul National
University (SNU); D. Cinabro, Wayne State University; F. DeJongh,
Fermilab; J. Dembicky, APO; D. L. DePoy, Ohio State University (OSU);
B. Dilday, University of Chicago (UC); M. Doi, University of Tokyo
(UoT); J. Frieman, Fermilab and UC; P. Garnavich, University of
Notre Dame; M. Harvanek, APO; C. Hogan, UW; J. Holtzman, New Mexico
State University; M. Im, SNU; S. Jha, Stanford University (SU);
K. Konishi, UoT; J. Krzesinski, APO; H. Lampeitl, Space Telescope
Science Institute (STScI); R. Kessler, UC; B. Ketzeback, D. Long,
O. Malanushenko, and V. Malanushenko, APO; J. Marriner and D. McGinnis,
Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab; T. Morokuma, UoT;
R. Nichol, University of Portsmouth (UP); K. Pan, APO; J. L. Prieto,
OSU; M. Richmond, Rochester Institute of Technology; A. Riess, STScI;
R. Romani, SU; M. Sako, University of Pennsylvania; G. Saurage,
APO; D. Schneider, Pennsylvania State University; M. Smith, UP;
S. Snedden, APO; N. Takanashi and K. Tokita, UoT; K. van der Heyden,
SAAO; S. Watters, APO; C. Wheeler, University of Texas; N. Yasuda,
UoT; and C. Zheng, SU, on behalf of the Sloan Digital Sky Survey II
collaboration, report the discovery of ten new supernovae on multiple
g, r, and i images taken with the SDSS 2.5-m telescope at APO by the
SDSS observing team. Romani, Zheng, Sako, Wheeler, and Schneider,
together with U. Hopp (University of Munich) and W. Kollatschny
(University of Goettingen), report that spectroscopic observations
with the Hobby Eberly Telescope on Nov. 16 UT indicate that three of
them (2006nt, 2006nu, and 2006nv) are type-Ia supernovae, and one
(2006ns) is a type-II supernova. M. Stritzinger and J. Sollerman,
Dark Cosmology Center (DCC); A. Goobar, University of Stockholm;
together with Nichol and Smith, report that observations by Stritzinger,
G. Leloudas, and C. Henriksen (DCC) with the Nordic Optical Telescope on
Nov. 17 indicate that 2006nw is a normal type-Ia supernova, 2006oa is a
type-Ia supernova with a spectrum similar to that of 1991T, 2006ob is
a type-Ia supernova with a spectrum similar to that of 1991bg, 2006nx
has the spectrum of a type-Ib or type-Ic hypernova event, and 2006ny
appears to be a type-IIp event. S. Blondin, M. Modjaz, R. Kirshner,
and P. Challis, Harvard-Smithsonian Center for Astrophysics, report
that a spectrum (range 350-740 nm) of 2006nz, obtained on Nov. 17.21 by
L. Macri with the F. L. Whipple Observatory 1.5-m telescope (+ FAST),
shows it to be a type-Ia supernova around maximum light; the spectrum
appears reddened due to significant contamination from the underlying
host galaxy. Cross-correlation with a library of supernova spectra
indicates that SN 2006nz is most similar to the type-Ia supernova
2002bo at -2 days from maximum light; adopting a recession velocity of
11360 km/s for the host galaxy (derived from narrow absorption lines
in the host galaxy spectrum), the maximum absorption in the Si II line
(rest 635.5 nm) is blueshifted by roughly 13000 km/s. The discovery
magnitudes tabulated below are all SDSS g magnitudes. Spectroscopic
redshifts are given in the column labelled "z". Peak dates (all 2006)
are approximate estimates from early fits to the multi-band light curves
or from the spectra. SN Discov. R.A. (2000.0) Decl. Mag. z Estimated
Date UT Peak Date 2006ns Oct. 17 21 33 32.22 + 0 47 05.4 20.6 0.12
Oct. 23 2006nt Oct. 20 2 53 58.91 + 0 59 13.1 22.0 0.28 Oct. 30 2006nu
Oct. 21 22 43 19.00 + 0 15 46.5 21.9 0.20 Oct. 31 2006nv Oct. 28 0
12 29.86 - 0 58 38.2 22.1 0.29 Nov. 3 2006nw Oct. 31 2 02 55.95 - 0
32 01.9 21.3 0.16 Nov. 12 2006nx Nov. 1 3 33 30.63 - 0 40 38.2 22.1
0.05 Nov. 14 2006ny Nov. 8 0 39 17.31 + 0 05 02.1 19.8 0.08 Nov. 17
2006nz Nov. 8 0 56 29.21 - 1 13 36.1 19.8 0.04 Nov. 18 2006oa Nov. 11
21 23 42.94 - 0 50 36.5 20.7 0.06 Nov. 29 2006ob Nov. 13 1 51 48.15 +
0 15 47.9 19.9 0.06 Nov. 29
Title: Supernovae 2006ob-2006op
Authors: Bassett, B.; Becker, A.; Brewington, H.; Choi, C.; Cinabro,
D.; Dejongh, F.; Dembicky, J.; Depoy, D. L.; Dilday, B.; Doi, M.;
Frieman, J.; Garnavich, P.; Harvanek, M.; Hogan, C.; Holtzman, J.; Im,
M.; Jha, S.; Konishi, K.; Krzesinski, J.; Lampeitl, H.; Kessler, R.;
Ketzeback, B.; Long, D.; Malanushenko, O.; Marriner, J.; McGinnis,
D.; McMillan, R.; Miknaitis, G.; Morokuma, T.; Nichol, R.; Pan,
K.; Prieto, J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.;
Saurage, G.; Schneider, D.; Smith, M.; Snedden, S.; Takanashi, N.;
Tokita, K.; van der Heyden, K.; Watters, S.; Wheeler, C.; Yasuda,
N.; Zheng, C.; Hopp, U.; Kollatschny, W.; Florack, M.; Hirschauer,
A.; O'Connor, D.; Eastman, J.; Watson, L.; Assef, R.; Schlesinger,
K.; Crotts, A.; Morgan, C.; Eyler, M.; Baek, M.; Li, W.
Bibcode: 2006CBET..745....1B
Altcode: 2006CBET..745A...1B
Further to CBETs 611 and 743, B. Bassett, South African Astronomical
Observatory (SAAO); A. Becker, University of Washington (UW);
H. Brewington, Apache Point Observatory (APO); C. Choi, Seoul National
University (SNU); D. Cinabro, Wayne State University; F. DeJongh,
Fermilab; J. Dembicky, APO; D. L. DePoy, Ohio State University (OSU);
B. Dilday, University of Chicago (UC); M. Doi, University of Tokyo
(UoT); J. Frieman, Fermilab and UC; P. Garnavich, University of
Notre Dame; M. Harvanek, APO; C. Hogan, UW; J. Holtzman, New Mexico
State University; M. Im, SNU; S. Jha, Stanford University (SU);
K. Konishi, UoT; J. Krzesinski, APO; H. Lampeitl, Space Telescope
Science Institute (STScI); R. Kessler, UC; B. Ketzeback, D. Long,
O. Malanushenko, and V. Malanushenko, APO; J. Marriner and D. McGinnis,
Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab; T. Morokuma, UoT;
R. Nichol, University of Portsmouth (UP); K. Pan, APO; J. L. Prieto,
OSU; M. Richmond, Rochester Institute of Technology; A. Riess, STScI;
R. Romani, SU; M. Sako, University of Pennsylvania; G. Saurage,
APO; D. Schneider, Pennsylvania State University; M. Smith, UP;
S. Snedden, APO; N. Takanashi and K. Tokita, UoT; K. van der Heyden,
SAAO; S. Watters, APO; C. Wheeler, University of Texas; N. Yasuda,
UoT; and C. Zheng, SU, on behalf of the Sloan Digital Sky Survey II
collaboration, report the discovery of fourteen new supernovae on
multiple g, r, and i images taken with the SDSS 2.5-m telescope at
APO by the SDSS observing team, thirteen of them confirmed as type-Ia
events and the other a probable type-Ia supernova. Romani, Zheng,
Sako, Wheeler, and Schneider, together with U. Hopp (University
of Munich) and W. Kollatschny (University of Goettingen), report
that spectroscopic observations with the Hobby Eberly Telescope on
Nov. 18 and 19 UT indicate that 2006oc, 2006oj, 2006oo, and 2006oe are
type-Ia supernovae. Spectroscopic observations on Nov. 18 and 19 with
the Kitt Peak National Observatory 4-m reflector by P. Garnavich,
M. Florack, A. Hirschauer, and D. O'Connor (all at the University
of Notre Dame) showed that 2006om, 2006od, 2006og, and 2006oi are
type-Ia supernovae. J. Eastman, J. L. Prieto, L. Watson, R. Assef,
K. Schlesinger, and D. DePoy, OSU; and A. Crotts, Columbia University,
report that spectroscopic observations by C. Morgan (OSU and U.S. Naval
Observatory), and M. Eyler (USNO) with the Hiltner 2.4-m telescope at
MDM Observatory on Nov. 17, 18, and 19 indicate that 2006ol, 2006on,
2006oh, 2006of, and 2006ok are type-Ia supernovae and that 2006op is a
probable type-Ia supernova. In addition, CBET 743 mistakenly reported
that the spectrum of SN 2006ob was similar to that of SN 1991bg;
in fact, it appears to be a normal type-Ia event. The discovery
magnitudes tabulated below are all SDSS g magnitudes. Spectroscopic
redshifts are given in the column labelled "z". Peak dates (all 2006)
are approximate estimates from early fits to the multi-band light curves
or from the spectra. SN Discov. R.A. (2000.0) Decl. Mag. z Estimated
Date UT Peak Date 2006oc Oct. 17 23 02 48.35 - 0 52 35.1 22.3 0.27
Oct. 28 2006od Oct. 23 2 07 54.31 - 0 32 07.4 22.1 0.17 Nov. 4 2006oe
Oct. 28 23 21 27.00 + 1 07 56.9 22.0 0.34 Nov. 1 2006of Oct. 29 0 32
25.86 - 1 03 14.4 21.5 0.16 Nov. 10 2006og Oct. 29 20 12 04.27 + 0
34 14.2 21.8 0.16 Nov. 11 2006oh Oct. 29 23 41 12.48 - 1 06 20.9 22.2
0.16 Nov. 15 2006oi Oct. 31 0 35 53.05 + 0 15 30.3 22.3 0.20 Nov. 12
2006oj Oct. 31 1 08 49.30 - 0 59 22.4 22.2 0.34 Nov. 1 2006ok Nov. 1
1 07 28.34 - 0 16 09.7 21.8 0.10 Nov. 14 2006ol Nov. 1 23 28 07.19 +
0 51 22.9 21.6 0.12 Nov. 12 2006om Nov. 8 1 22 18.88 + 1 00 38.2 21.5
0.16 Nov. 19 2006on Nov. 11 21 55 58.49 - 1 04 12.7 20.7 0.07 Nov. 26
2006oo Nov. 11 21 59 47.23 - 0 43 59.6 22.1 0.28 Nov. 19 2006op Nov. 17
21 21 31.86 + 0 59 35.9 21.6 0.03 Nov. 25 M. Baek and W. Li report the
independent LOSS (cf. IAUC 8771) discovery of 2006ob on unfiltered KAIT
images taken on Nov. 18.29 (at mag 17.9) and 19.31 UT (mag 17.6). Their
measured position for 2006ob is R.A. = 1h51m48s.11, Decl. = +0o15'48".3
(equinox 2000.0), which is 5".5 west and 1".6 south of the center of UGC
1333. KAIT images taken on Oct. 29.30 (limiting mag 18.9) and Nov. 7.31
(limiting mag 18.5) showed nothing at the position of 2006ob.
Title: Supernovae 2006nf-2006np
Authors: Bassett, B.; Becker, A.; Brewington, H.; Choi, C.; Cinabro,
D.; Dejongh, F.; Dembicky, J.; Depoy, D. L.; Dilday, B.; Doi, M.;
Frieman, J.; Garnavich, P.; Harvanek, M.; Hogan, C.; Holtzman, J.; Im,
M.; Jha, S.; Konishi, K.; Krzesinski, J.; Lampeitl, H.; Kessler, R.;
Ketzeback, B.; Long, D.; Malanushenko, O.; Marriner, J.; McGinnis,
D.; McMillan, R.; Miknaitis, G.; Morokuma, T.; Nichol, R.; Pan, K.;
Prieto, J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Saurage,
G.; Schneider, D.; Smith, M.; Snedden, S.; Takanashi, N.; Tokita, K.;
van der Heyden, K.; Watters, S.; Wheeler, C.; Yasuda, N.; Zheng, C.;
Hopp, U.; Kollatschny, W.
Bibcode: 2006CBET..740....1B
Altcode: 2006CBET..740A...1B
Further to CBETs 611 and 735, B. Bassett, South African Astronomical
Observatory (SAAO); A. Becker, University of Washington (UW);
H. Brewington, Apache Point Observatory (APO); C. Choi, Seoul National
University (SNU); D. Cinabro, Wayne State University; F. DeJongh,
Fermilab; J. Dembicky, APO; D. L. DePoy, Ohio State University (OSU);
B. Dilday, University of Chicago (UC); M. Doi, University of Tokyo
(UoT); J. Frieman, Fermilab and UC; P. Garnavich, University of
Notre Dame; M. Harvanek, APO; C. Hogan, UW; J. Holtzman, New Mexico
State University; M. Im, SNU; S. Jha, Stanford University (SU);
K. Konishi, UoT; J. Krzesinski, APO; H. Lampeitl, Space Telescope
Science Institute (STScI); R. Kessler, UC; B. Ketzeback, D. Long,
O. Malanushenko, and V. Malanushenko, APO; J. Marriner and D. McGinnis,
Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab; T. Morokuma, UoT;
R. Nichol, University of Portsmouth (UP); K. Pan, APO; J. L. Prieto,
OSU; M. Richmond, Rochester Institute of Technology; A. Riess, STScI;
R. Romani, SU; M. Sako, University of Pennsylvania; G. Saurage,
APO; D. Schneider, Pennsylvania State University; M. Smith, UP;
S. Snedden, APO; N. Takanashi and K. Tokita, UoT; K. van der Heyden,
SAAO; S. Watters, APO; C. Wheeler, University of Texas; N. Yasuda,
UoT; and C. Zheng, SU, on behalf of the Sloan Digital Sky Survey II
collaboration, report the discovery of eleven new type-Ia supernovae
on multiple g, r, and i images taken with the SDSS 2.5-m telescope
at APO by the SDSS observing team. Romani, Zheng, Sako, Wheeler,
and Schneider, together with U. Hopp (University of Munich) and
W. Kollatschny (University of Goettingen), report that spectroscopic
observations with the Hobby Eberly Telescope on Nov. 11, 14, and 15
UT indicate that they are all type-Ia events. The discovery magnitudes
tabulated below are all SDSS g magnitudes. Spectroscopic redshifts are
given in the column labelled "z". Peak dates (all 2006) are approximate
estimates from early fits to the multi-band light curves or from the
spectra. SN Discov. R.A. (2000.0) Decl. Mag. z Estimated Date UT Peak
Date 2006nf Oct. 17 0 01 29.96 + 0 16 33.5 22.9 0.39 Oct. 23 2006ng
Oct. 21 0 22 07.27 - 0 05 44.3 22.4 0.40 Oct. 27 2006nh Oct. 21 2
40 50.57 + 0 39 31.6 23.0 0.37 Nov. 2 2006ni Oct. 21 20 54 52.41 -
0 11 41.4 22.9 0.18 Nov. 3 2006nj Oct. 22 1 24 28.23 + 0 04 27.8 22.6
0.40 Oct. 29 2006nk Oct. 27 2 56 16.61 - 0 24 38.8 21.7 0.20 Nov. 5
2006nl Oct. 28 2 01 44.71 - 1 01 56.7 21.8 0.19 Nov. 6 2006nm Oct. 28
23 12 39.38 + 0 16 01.0 22.5 0.31 Oct. 28 2006nn Oct. 29 1 45 41.02 -
1 03 15.8 22.4 0.20 Nov. 12 2006no Oct. 29 22 08 21.44 - 1 08 55.7
21.4 0.25 Nov. 5 2006np Nov. 10 3 06 39.48 + 0 03 50.5 21.0 0.11 Nov. 25
Title: Supernovae 2006mt-2006mx
Authors: Bassett, B.; Becker, A.; Brewington, H.; Choi, C.; Cinabro,
D.; Dejongh, F.; Dembicky, J.; Depoy, D. L.; Dilday, B.; Doi, M.;
Frieman, J.; Garnavich, P.; Harvanek, M.; Hogan, C.; Holtzman, J.; Im,
M.; Jha, S.; Konishi, K.; Krzesinski, J.; Lampeitl, H.; Kessler, R.;
Ketzeback, B.; Long, D.; Malanushenko, O.; Marriner, J.; McGinnis,
D.; McMillan, R.; Miknaitis, G.; Morokuma, T.; Nichol, R.; Pan, K.;
Prieto, J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Saurage,
G.; Schneider, D.; Smith, M.; Snedden, S.; Takanashi, N.; Tokita,
K.; van der Heyden, K.; Watters, S.; Wheeler, C.; Yasuda, N.; Zheng, C.
Bibcode: 2006CBET..726....1B
Altcode: 2006CBET..726A...1B
Further to CBETs 611 and 713, B. Bassett, South African Astronomical
Observatory (SAAO); A. Becker, University of Washington (UW);
H. Brewington, Apache Point Observatory (APO); C. Choi, Seoul National
University (SNU); D. Cinabro, Wayne State University; F. DeJongh,
Fermilab; J. Dembicky, APO; D. L. DePoy, Ohio State University (OSU);
B. Dilday, University of Chicago (UC); M. Doi, University of Tokyo
(UoT); J. Frieman, Fermilab and UC; P. Garnavich, University of
Notre Dame; M. Harvanek, APO; C. Hogan, UW; J. Holtzman, New Mexico
State University; M. Im, SNU; S. Jha, Stanford University (SU);
K. Konishi, UoT; J. Krzesinski, APO; H. Lampeitl, Space Telescope
Science Institute (STScI); R. Kessler, UC; B. Ketzeback, D. Long,
O. Malanushenko, and V. Malanushenko, APO; J. Marriner and D. McGinnis,
Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab; T. Morokuma, UoT;
R. Nichol, University of Portsmouth (UP); K. Pan, APO; J. L. Prieto,
OSU; M. Richmond, Rochester Institute of Technology; A. Riess, STScI;
R. Romani, SU; M. Sako, University of Pennsylvania; G. Saurage,
APO; D. Schneider, Pennsylvania State University; M. Smith, UP;
S. Snedden, APO; N. Takanashi and K. Tokita, UoT; K. van der Heyden,
SAAO; S. Watters, APO; C. Wheeler, University of Texas; N. Yasuda,
UoT; and C. Zheng, SU, on behalf of the Sloan Digital Sky Survey II
collaboration, report the discovery of five new supernovae on multiple
g, r, and i images taken with the SDSS 2.5-m telescope at APO by the
SDSS observing team. J. Marriner, D. McGinnis, G. Miknaitis, G. Saurage,
W. Ketzeback, J. Dembicky, and R. McMillan report that spectroscopic
observations with the ARC 3.5-m telescope at APO on Oct. 27, 29,
and 31 UT indicate that two of the events are type-Ia supernovae
(2006mt and 2006mv) and the other three (2006mu, 2006mw, 2006mx) are
probable type-Ia supernovae. The discovery magnitudes tabulated below
are all SDSS g magnitudes. Spectroscopic redshifts are given in the
column labelled "z". Peak dates (all 2006) are approximate estimates
from early fits to the multi-band light curves or from the spectra. SN
Discov. R.A. (2000.0) Decl. Mag. z Estimated Date UT Peak Date 2006mt
Oct. 16 0 59 31.12 - 0 15 23.5 22.0 0.22 Oct. 28 2006mu Oct. 17 22
24 00.68 + 0 49 16.9 21.2 0.14 Oct. 22 2006mv Oct. 20 2 30 55.46 +
0 56 46.7 21.9 0.17 Nov. 3 2006mw Oct. 21 3 25 08.47 - 0 02 26.1 22.1
0.12 Oct. 30 2006mx Oct. 24 20 03 27.33 + 0 34 12.8 21.2 0.13 Nov. 2
Title: Supernovae 2006lj-2006ls
Authors: Bassett, B.; Becker, A.; Brewington, H.; Choi, C.; Cinabro,
D.; Dejongh, F.; Dembicky, J.; Depoy, D. L.; Dilday, B.; Doi, M.;
Frieman, J.; Garnavich, P.; Harvanek, M.; Hogan, C.; Holtzman, J.; Im,
M.; Jha, S.; Konishi, K.; Krzesinski, J.; Lampeitl, H.; Kessler, R.;
Ketzeback, B.; Long, D.; Malanushenko, O.; Marriner, J.; McGinnis,
D.; McMillan, R.; Miknaitis, G.; Morokuma, T.; Nichol, R.; Pan, K.;
Prieto, J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Saurage,
G.; Schneider, D.; Smith, M.; Snedden, S.; Takanashi, N.; Tokita, K.;
van der Heyden, K.; Watters, S.; Wheeler, C.; Yasuda, N.; Zheng, C.;
Hopp, U.; Kollatschny, W.; Vaisanen, P.; Eastman, J.; Watson, L.;
Assef, R.; Schlesinger, K.; Crotts, A.
Bibcode: 2006CBET..713....1B
Altcode: 2006CBET..713A...1B
Further to CBETs 611 and 688, B. Bassett, South African Astronomical
Observatory (SAAO); A. Becker, University of Washington (UW);
H. Brewington, Apache Point Observatory (APO); C. Choi, Seoul National
University (SNU); D. Cinabro, Wayne State University; F. DeJongh,
Fermilab; J. Dembicky, APO; D. L. DePoy, Ohio State University (OSU);
B. Dilday, University of Chicago (UC); M. Doi, University of Tokyo
(UoT); J. Frieman, Fermilab and UC; P. Garnavich, University of
Notre Dame; M. Harvanek, APO; C. Hogan, UW; J. Holtzman, New Mexico
State University; M. Im, SNU; S. Jha, Stanford University (SU);
K. Konishi, UoT; J. Krzesinski, APO; H. Lampeitl, Space Telescope
Science Institute (STScI); R. Kessler, UC; B. Ketzeback, D. Long,
O. Malanushenko, and V. Malanushenko, APO; J. Marriner and D. McGinnis,
Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab; T. Morokuma, UoT;
R. Nichol, University of Portsmouth (UP); K. Pan, APO; J. L. Prieto,
OSU; M. Richmond, Rochester Institute of Technology; A. Riess, STScI;
R. Romani, SU; M. Sako, University of Pennsylvania; G. Saurage,
APO; D. Schneider, Pennsylvania State University; M. Smith, UP;
S. Snedden, APO; N. Takanashi and K. Tokita, UoT; K. van der Heyden,
SAAO; S. Watters, APO; C. Wheeler, University of Texas; N. Yasuda,
UoT; and C. Zheng, SU, on behalf of the Sloan Digital Sky Survey II
collaboration, report the discovery of ten new supernovae on multiple
g, r, and i images taken with the SDSS 2.5-m telescope at APO by the
SDSS observing team. Romani, Zheng, Sako, Wheeler, and Schneider,
together with U. Hopp (University of Munich) and W. Kollatschny
(University of Goettingen), report that spectroscopic observations
with the Hobby Eberly Telescope on Oct. 24, 26, 27, and 28 UT show
that seven of the new objects (2006lj, 2006lk, 2006lq, 2006lp, 2006lm,
2006lr, 2006ll) are type-Ia supernovae. B. Bassett, K. van der Heyden,
and P. Vaisanen, South African Astronomical Observatory, report that
a spectrum of 2006ln, taken with the South African Large Telescope on
Oct. 23, shows it to be a type-Ia supernova. J. Eastman, J. L. Prieto,
L. Watson, R. Assef, K. Schlesinger, D. DePoy, OSU; and A. Crotts,
Columbia University, report that spectroscopic observations with the
Hiltner 2.4-m at MDM Observatory on Oct. 27 indicate that 2006lo is a
type-Ia supernova. J. Marriner, D. McGinnis, and G. Miknaitis report
that spectroscopic observations with the ARC 3.5-m telescope at APO
on Oct. 23 indicated that 2006ls was a probable type-I supernova;
a second spectroscopic exposure of this object, at MDM on Oct. 29,
indicates that it appears to be a peculiar type-I event. The discovery
magnitudes tabulated below are all SDSS g magnitudes. Spectroscopic
redshifts are given in the column labelled "z". Peak dates (all 2006)
are approximate estimates from early fits to the multi-band light curves
or from the spectra. SN Discov. R.A. (2000.0) Decl. Mag. z Estimated
Date UT Peak Date 2006lj Sep. 27 0 10 43.62 + 0 12 04.7 23.5 0.24
Oct. 9 2006lk Oct. 3 3 32 04.60 - 0 06 00.6 23.1 0.31 Oct. 16 2006ll
Oct. 11 22 07 28.14 - 0 54 12.3 22.5 0.38 Oct. 19 2006lm Oct. 11 22
20 12.80 + 0 24 35.8 22.1 0.28 Oct. 20 2006ln Oct. 11 23 15 19.91 - 0
33 45.3 21.3 0.24 Oct. 22 2006lo Oct. 12 21 34 19.18 + 0 35 20.8 22.9
0.18 Oct. 27 2006lp Oct. 13 0 27 05.68 - 0 07 33.5 21.8 0.22 Oct. 17
2006lq Oct. 13 2 16 35.88 - 0 09 18.5 22.2 0.32 Oct. 17 2006lr Oct. 16
2 38 52.96 + 0 05 24.3 21.9 0.26 Oct. 22 2006ls Oct. 17 1 48 40.56 -
0 34 35.7 21.5 0.14 Nov. 1
Title: Supernovae 2006hu, 2006hv, 2006hw, 2006hx
Authors: Bassett, B.; Becker, A.; Brewington, H.; Choi, C.; Cinabro,
D.; Dejongh, F.; Dembicky, J.; Depoy, D. L.; Dilday, B.; Doi, M.;
Frieman, J.; Garnavich, P.; Harvanek, M.; Hogan, C.; Holtzman, J.; Im,
M.; Jha, S.; Konishi, K.; Krzesinski, J.; Lampeitl, H.; Kessler, R.;
Ketzeback, B.; Long, D.; Malanushenko, O.; Marriner, J.; McGinnis,
D.; McMillan, R.; Miknaitis, G.; Morokuma, T.; Nichol, R.; Pan, K.;
Prieto, J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Saurage,
G.; Schneider, D.; Smith, M.; Snedden, S.; Takanashi, N.; Tokita,
K.; van der Heyden, K.; Watters, S.; Wheeler, C.; Yasuda, N.; Zheng, C.
Bibcode: 2006CBET..656....1B
Altcode: 2006CBET..656A...1B
Further to CBETs 611 and 654, B. Bassett, South African Astronomical
Observatory (SAAO); A. Becker, University of Washington (UW);
H. Brewington, Apache Point Observatory (APO); C. Choi, Seoul National
University (SNU); D. Cinabro, Wayne State University; F. DeJongh,
Fermilab; J. Dembicky, APO; D. L. DePoy, Ohio State University (OSU);
B. Dilday, University of Chicago (UC); M. Doi, University of Tokyo
(UoT); J. Frieman, Fermilab and UC; P. Garnavich, University of
Notre Dame; M. Harvanek, APO; C. Hogan, UW; J. Holtzman, New Mexico
State University; M. Im, SNU; S. Jha, Stanford University (SU);
K. Konishi, UoT; J. Krzesinski, APO; H. Lampeitl, Space Telescope
Science Institute (STScI); R. Kessler, UC; B. Ketzeback, D. Long,
O. Malanushenko, and V. Malanushenko, APO; J. Marriner and D. McGinnis,
Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab; T. Morokuma, UoT;
R. Nichol, University of Portsmouth (UP); K. Pan, APO; J. L. Prieto,
OSU; M. Richmond, Rochester Institute of Technology; A. Riess, STScI;
R. Romani, SU; M. Sako, University of Pennsylvania; G. Saurage,
APO; D. Schneider, Pennsylvania State University; M. Smith, UP;
S. Snedden, APO; N. Takanashi and K. Tokita, UoT; K. van der Heyden,
SAAO; S. Watters, APO; C. Wheeler, University of Texas; N. Yasuda,
UoT; and C. Zheng, SU, on behalf of the Sloan Digital Sky Survey II
collaboration, report the discovery of four new type-Ia supernovae
on multiple g, r, and i images taken with the SDSS 2.5-m telescope
at APO by the SDSS observing team. J. Marriner, D. McGinnis, and
J. Dembicky report that observations with the ARC 3.5-m telescope at
APO on Oct. 1 UT indicate that the four new objects are all type-Ia
supernovae. The discovery magnitudes tabulated below are all SDSS g
magnitudes. Spectroscopic redshifts are given in the column labelled
"z". Peak dates (all 2006) are approximate estimates from early fits
to the multi-band light curves. SN Discov. R.A. (2000.0) Decl. Mag. z
Estimated Date UT Peak Date 2006hu Sept. 18 3 34 22.72 - 1 07 23.5
22.0 0.14 Sept.27 2006hv Sept. 18 22 27 19.99 + 1 01 51.4 22.7 0.15
Oct. 2 2006hw Sept. 22 3 13 03.44 - 0 28 17.9 22.5 0.14 Oct. 3 2006hx
Sept. 28 1 13 57.31 + 0 22 18.0 21.2 0.05 Oct. 6
Title: Supernovae 2006hy, 2006hz, 2006ia, 2006ib
Authors: Bassett, B.; Becker, A.; Brewington, H.; Choi, C.; Cinabro,
D.; Dejongh, F.; Dembicky, J.; Depoy, D. L.; Dilday, B.; Doi, M.;
Frieman, J.; Garnavich, P.; Harvanek, M.; Hogan, C.; Holtzman, J.; Im,
M.; Jha, S.; Konishi, K.; Krzesinski, J.; Lampeitl, H.; Kessler, R.;
Ketzeback, B.; Long, D.; Malanushenko, O.; Marriner, J.; McGinnis,
D.; McMillan, R.; Miknaitis, G.; Morokuma, T.; Nichol, R.; Pan, K.;
Prieto, J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Saurage,
G.; Schneider, D.; Smith, M.; Snedden, S.; Takanashi, N.; Tokita, K.;
van der Heyden, K.; Watters, S.; Wheeler, C.; Yasuda, N.; Zheng, C.;
Hopp, U.; Kollatschny, W.
Bibcode: 2006CBET..657....1B
Altcode: 2006CBET..657A...1B
Further to CBETs 611 and 656, B. Bassett, South African Astronomical
Observatory (SAAO); A. Becker, University of Washington (UW);
H. Brewington, Apache Point Observatory (APO); C. Choi, Seoul National
University (SNU); D. Cinabro, Wayne State University; F. DeJongh,
Fermilab; J. Dembicky, APO; D. L. DePoy, Ohio State University (OSU);
B. Dilday, University of Chicago (UC); M. Doi, University of Tokyo
(UoT); J. Frieman, Fermilab and UC; P. Garnavich, University of
Notre Dame; M. Harvanek, APO; C. Hogan, UW; J. Holtzman, New Mexico
State University; M. Im, SNU; S. Jha, Stanford University (SU);
K. Konishi, UoT; J. Krzesinski, APO; H. Lampeitl, Space Telescope
Science Institute (STScI); R. Kessler, UC; B. Ketzeback, D. Long,
O. Malanushenko, and V. Malanushenko, APO; J. Marriner and D. McGinnis,
Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab; T. Morokuma, UoT;
R. Nichol, University of Portsmouth (UP); K. Pan, APO; J. L. Prieto,
OSU; M. Richmond, Rochester Institute of Technology; A. Riess, STScI;
R. Romani, SU; M. Sako, University of Pennsylvania; G. Saurage,
APO; D. Schneider, Pennsylvania State University; M. Smith, UP;
S. Snedden, APO; N. Takanashi and K. Tokita, UoT; K. van der Heyden,
SAAO; S. Watters, APO; C. Wheeler, University of Texas; N. Yasuda,
UoT; and C. Zheng, SU, on behalf of the Sloan Digital Sky Survey II
collaboration, report the discovery of four new supernovae on multiple
g, r, and i images taken with the SDSS 2.5-m telescope at APO by the
SDSS observing team. Marriner, McGinnis, and Dembicky report that
observations with the ARC 3.5-m telescope at APO on Oct. 2 UT indicate
that 2006ia, 2006ib, and 2006hy are all type-Ia supernovae. Romani,
Zheng, Sako, Wheeler, and Schneider, together with U. Hopp (University
of Munich) and W. Kollatschny (University of Goettingen), report
that spectroscopic observations with the Hobby Eberly Telescope on
Sept. 30 indicate that 2006hz is a type-II supernova. The discovery
magnitudes tabulated below are all SDSS g magnitudes. Spectroscopic
redshifts are given in the column labelled "z". Peak dates (all 2006)
are approximate estimates from early fits to the multi-band light
curves. SN Discov. R.A. (2000.0) Decl. Mag. z Estimated Date UT Peak
Date 2006hy Sept. 15 22 08 19.43 - 1 11 47.0 22.3 0.14 Oct. 2 2006hz
Sept. 19 0 12 41.00 - 0 32 07.7 21.6 0.23 Oct. 1 2006ia Sept. 22 2
07 19.18 + 1 15 07.5 21.0 0.18 Oct. 3 2006ib Sept. 22 3 16 11.83 -
0 36 03.4 22.1 0.18 Oct. 8
Title: Supernovae 2006kg-2006lc
Authors: Bassett, B.; Becker, A.; Brewington, H.; Choi, C.; Cinabro,
D.; Dejongh, F.; Dembicky, J.; Depoy, D. L.; Dilday, B.; Doi, M.;
Frieman, J.; Garnavich, P.; Harvanek, M.; Hogan, C.; Holtzman, J.; Im,
M.; Jha, S.; Konishi, K.; Krzesinski, J.; Lampeitl, H.; Kessler, R.;
Ketzeback, B.; Long, D.; Malanushenko, O.; Marriner, J.; McGinnis,
D.; McMillan, R.; Miknaitis, G.; Morokuma, T.; Nichol, R.; Pan, K.;
Prieto, J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Saurage,
G.; Schneider, D.; Smith, M.; Snedden, S.; Takanashi, N.; Tokita, K.;
van der Heyden, K.; Watters, S.; Wheeler, C.; Yasuda, N.; Zheng, C.;
Aragon-Salamanca, A.; Bremer, M.; Turatto, M.; Goobar, A.; Sollerman,
J.; Ruiz-Lapuente, P.; Castander, F.; Romer, A.; Collins, C.; Lucey,
J.; Edge, A.; Stritzinger, M.; Hopp, U.; Kollatschny, W.; Eastman,
J.; Watson, L.; Assef, R.; Schlesinger, K.; Crotts, A.
Bibcode: 2006CBET..688....1B
Altcode: 2006CBET..688A...1B
Further to CBETs 611 and 680, B. Bassett, South African Astronomical
Observatory (SAAO); A. Becker, University of Washington (UW);
H. Brewington, Apache Point Observatory (APO); C. Choi, Seoul National
University (SNU); D. Cinabro, Wayne State University; F. DeJongh,
Fermilab; J. Dembicky, APO; D. L. DePoy, Ohio State University (OSU);
B. Dilday, University of Chicago (UC); M. Doi, University of Tokyo
(UoT); J. Frieman, Fermilab and UC; P. Garnavich, University of
Notre Dame; M. Harvanek, APO; C. Hogan, UW; J. Holtzman, New Mexico
State University; M. Im, SNU; S. Jha, Stanford University (SU);
K. Konishi, UoT; J. Krzesinski, APO; H. Lampeitl, Space Telescope
Science Institute (STScI); R. Kessler, UC; B. Ketzeback, D. Long,
O. Malanushenko, and V. Malanushenko, APO; J. Marriner and D. McGinnis,
Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab; T. Morokuma, UoT;
R. Nichol, University of Portsmouth (UP); K. Pan, APO; J. L. Prieto,
OSU; M. Richmond, Rochester Institute of Technology; A. Riess, STScI;
R. Romani, SU; M. Sako, University of Pennsylvania; G. Saurage,
APO; D. Schneider, Pennsylvania State University; M. Smith, UP;
S. Snedden, APO; N. Takanashi and K. Tokita, UoT; K. van der Heyden,
SAAO; S. Watters, APO; C. Wheeler, University of Texas; N. Yasuda,
UoT; and C. Zheng, SU, on behalf of the Sloan Digital Sky Survey II
collaboration, report the discovery of 23 new supernovae on multiple
g, r, and i images taken with the SDSS 2.5-m telescope at APO by the
SDSS observing team. A. Aragon-Salamanca, University of Nottingham;
M. Bremer, University of Bristol; M. Turatto, University of Padova;
A. Goobar, University of Stockholm; R. Nichol; J. Sollerman, University
of Copenhagen; P. Ruiz-Lapuente and F. Castander, University of
Barcelona; A. Romer, University of Sussex; C. Collins, Liverpool John
Moores University; and J. Lucey and A. Edge, University of Durham,
report that spectroscopy obtained by M. Smith and M. Stritzinger
on Oct. 17 and 18 UT with the European Southern Observatory 3.6-m
New Technology Telescope shows 2006kq and 2006kt to be type-Ia
supernovae, 2006kj to be a possible type-Ia supernova, 2006kh and
2006kn to be type-II supernovae, and 2006kg to be a possible type-II
supernova. Romani, Zheng, Sako, Wheeler, and Schneider, together
with U. Hopp (University of Munich) and W. Kollatschny (University
of Goettingen), report that spectroscopic observations with the Hobby
Eberly Telescope on Oct. 18 and 20 show that 2006ki, 2006kk, 2006kl,
2006km, and 2006ks are type-Ia supernovae, while 2006ko and 2006kp are
probable or possible type-Ia events. Miknaitis, McGinnis, and Marriner
report that spectroscopic observations with the ARC 3.5-m telescope on
Oct. 20 and 23 indicate that 2006kr is a type-Ia supernova and 2006kv
is a type-II supernova. J. Eastman, J. L. Prieto, L. Watson, R. Assef,
K. Schlesinger, and D. DePoy, OSU; and A. Crotts, Columbia University,
report that spectroscopic observations with the Hiltner 2.4-m telescope
at MDM Observatory on Oct. 22 and 23 indicate that 2006ku, 2006kw,
2006kx, 2006ky, 2006kz, 2006la, and 2006lb are type-Ia supernovae, and
that 2006lc is a probable type-Ic supernova. The discovery magnitudes
tabulated below are all SDSS g magnitudes. Spectroscopic redshifts
are given in the column labelled "z". Peak dates (all 2006) are
approximate estimates from early fits to the multi-band light curves
or from the spectra. SN Discov. R.A. (2000.0) Decl. Mag. z Estimated
Date UT Peak Date 2006kg Sep. 11 1 04 16.98 + 0 46 08.9 20.2 0.23 --
2006kh Sep. 11 1 49 11.85 - 0 36 18.9 20.6 0.06 -- 2006ki Sep. 20 21
06 34.18 - 0 38 52.6 23.2 0.22 Oct. 2 2006kj Sep. 27 3 24 32.81 + 1
01 20.5 20.9 0.21 Oct. 4 2006kk Sep. 28 0 27 39.86 + 0 38 58.2 22.8
0.39 Oct. 9 2006kl Sep. 28 0 31 33.28 - 0 08 08.9 21.3 0.22 Oct. 3
2006km Sep. 29 2 20 37.93 + 0 20 54.2 22.0 0.30 Oct. 2 2006kn Sep. 30
20 58 05.22 + 0 54 01.7 21.0 0.12 Oct. 6 2006ko Oct. 1 1 28 59.95 +
0 46 11.8 22.3 0.38 Oct. 10 2006kp Oct. 1 2 11 11.66 + 0 41 45.0 23.3
0.29 Oct. 2 2006kq Oct. 2 21 15 36.58 - 0 19 17.1 22.8 0.20 Oct. 11
2006kr Oct. 11 0 19 19.68 + 1 05 26.6 22.2 0.22 Oct. 22 2006ks Oct. 11
22 30 04.66 + 0 00 13.2 22.8 0.21 Oct. 19 2006kt Oct. 12 21 35 50.32 -
1 03 26.8 21.5 0.24 Oct. 21 2006ku Oct. 13 23 38 13.60 + 1 14 56.8
22.5 0.19 Oct. 25 2006kv Oct. 16 0 03 06.66 + 0 54 49.6 19.5 -- --
2006kw Oct. 16 2 14 57.98 + 0 36 09.0 21.2 0.19 Oct. 27 2006kx Oct. 16
3 42 14.67 + 0 28 41.8 21.1 0.16 Oct. 29 2006ky Oct. 17 21 18 40.40 -
1 01 27.4 21.5 0.18 Oct. 28 2006kz Oct. 17 21 47 23.40 - 0 29 40.8 21.4
0.18 Oct. 29 2006la Oct. 17 22 42 48.34 - 0 54 06.3 21.2 0.12 Oct. 28
2006lb Oct. 20 3 19 28.19 - 0 19 04.9 20.9 0.18 Oct. 25 2006lc Oct. 21
22 44 24.48 - 0 09 53.5 20.2 0.02 Nov. 1
Title: Supernovae 2006jf-2006kd
Authors: Bassett, B.; Becker, A.; Brewington, H.; Choi, C.; Cinabro,
D.; Dejongh, F.; Dembicky, J.; Depoy, D. L.; Dilday, B.; Doi, M.;
Frieman, J.; Garnavich, P.; Harvanek, M.; Hogan, C.; Holtzman, J.; Im,
M.; Jha, S.; Konishi, K.; Krzesinski, J.; Lampeitl, H.; Kessler, R.;
Ketzeback, B.; Long, D.; Malanushenko, O.; Marriner, J.; McGinnis,
D.; McMillan, R.; Miknaitis, G.; Morokuma, T.; Nichol, R.; Pan, K.;
Prieto, J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Saurage,
G.; Schneider, D.; Smith, M.; Snedden, S.; Takanashi, N.; Tokita, K.;
van der Heyden, K.; Watters, S.; Wheeler, C.; Yasuda, N.; Zheng, C.;
Aragon-Salamanca, A.; Bremer, M.; Turatto, M.; Goobar, A.; Sollerman,
J.; Ruiz-Lapuente, P.; Castander, F.; Romer, A.; Collins, C.; Lucey,
J.; Edge, A.; Stritzinger, M.; Ihara, Y.
Bibcode: 2006CBET..680....1B
Altcode: 2006CBET..680A...1B
Further to CBETs 611 and 667, B. Bassett, South African Astronomical
Observatory (SAAO); A. Becker, University of Washington (UW);
H. Brewington, Apache Point Observatory (APO); C. Choi, Seoul National
University (SNU); D. Cinabro, Wayne State University; F. DeJongh,
Fermilab; J. Dembicky, APO; D. L. DePoy, Ohio State University (OSU);
B. Dilday, University of Chicago (UC); M. Doi, University of Tokyo
(UoT); J. Frieman, Fermilab and UC; P. Garnavich, University of
Notre Dame; M. Harvanek, APO; C. Hogan, UW; J. Holtzman, New Mexico
State University; M. Im, SNU; S. Jha, Stanford University (SU);
K. Konishi, UoT; J. Krzesinski, APO; H. Lampeitl, Space Telescope
Science Institute (STScI); R. Kessler, UC; B. Ketzeback, D. Long,
O. Malanushenko, and V. Malanushenko, APO; J. Marriner and D. McGinnis,
Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab; T. Morokuma, UoT;
R. Nichol, University of Portsmouth (UP); K. Pan, APO; J. L. Prieto,
OSU; M. Richmond, Rochester Institute of Technology; A. Riess, STScI;
R. Romani, SU; M. Sako, University of Pennsylvania; G. Saurage,
APO; D. Schneider, Pennsylvania State University; M. Smith, UP;
S. Snedden, APO; N. Takanashi and K. Tokita, UoT; K. van der Heyden,
SAAO; S. Watters, APO; C. Wheeler, University of Texas; N. Yasuda,
UoT; and C. Zheng, SU, on behalf of the Sloan Digital Sky Survey II
collaboration, report the discovery of 25 new supernovae on multiple
g, r, and i images taken with the SDSS 2.5-m telescope at APO by the
SDSS observing team. A. Aragon-Salamanca, University of Nottingham;
M. Bremer, University of Bristol; M. Turatto, University of Padova;
A. Goobar, University of Stockholm; R. Nichol; J. Sollerman, University
of Copenhagen; P. Ruiz-Lapuente and F. Castander, University of
Barcelona; A. Romer, University of Sussex, C. Collins, Liverpool John
Moores University; and J. Lucey and A. Edge, University of Durham,
report that spectroscopy obtained by M. Smith and M. Stritzinger
on Oct. 15 and 16 UT with the European Southern Observatory 3.6-m
New Technology Telescope shows thirteen of the supernovae (2006jh,
2006ji, 2006jn, 2006jp, 2006jq, 2006jr, 2006js, 2006jt, 2006jy, 2006jz,
2006kb, 2006kc, and 2006kd) to be type-Ia events; 2006ju and 2006jw
to be probable type-Ia supernovae; 2006jo to be a type-Ib supernova;
and 2006jl to be a type-IIn supernova. Spectroscopic observations
with the Subaru 8-m telescope by N. Takanashi, Y. Ihara, T. Morokuma,
K. Tokita, K. Konishi, and N. Yasuda on the same night indicate that
six of the events (2006jg, 2006jj, 2006jk, 2006jm, 2006jv, and 2006ka)
are type-Ia supernova, and 2006jx is a possible type-Ib supernova;
they also report that a Subaru spectrum taken on Sept. 18 UT shows
2006jf to be a type-Ia supernova. The discovery magnitudes tabulated
below are all SDSS g magnitudes. Spectroscopic redshifts are given in
the column labelled "z". Peak dates (all 2006 dates) are approximate
estimates from early fits to the multi-band light curves or from the
spectra. SN Discov. R.A. (2000.0) Decl. Mag. z Estimated Date UT Peak
Date 2006jf Sep. 15 22 34 54.57 + 0 00 07.3 22.4 0.28 Sep. 15 2006jg
Sep. 17 22 48 26.64 - 0 26 07.0 23.0 0.33 Sep. 29 2006jh Sep. 19 0
06 45.75 - 0 02 12.4 22.6 0.13 Oct. 5 2006ji Sep. 20 20 32 46.79 + 0
55 37.5 21.7 0.18 Oct. 1 2006jj Sep. 27 20 59 34.81 + 1 13 23.7 21.4
0.27 Oct. 5 2006jk Sep. 27 21 52 57.70 + 0 15 13.7 22.7 0.29 Oct. 10
2006jl Sep. 29 20 32 04.67 - 0 34 28.3 19.8 0.05 Oct. 5 2006jm Sep. 29
22 54 12.27 + 1 03 02.3 22.8 0.33 Oct. 8 2006jn Sep. 30 0 30 39.18 +
0 08 29.7 23.1 0.23 Oct. 17 2006jo Sep. 30 1 23 14.72 - 0 19 46.7 21.1
0.08 Oct. 5 2006jp Sep. 30 20 56 56.22 - 0 16 44.6 21.7 0.16 Oct. 12
2006jq Oct. 1 3 37 06.50 + 0 00 33.7 22.7 0.13 Oct. 15 2006jr Oct. 1
3 39 47.15 + 0 59 34.2 22.5 0.18 Oct. 13 2006js Oct. 1 20 55 20.06 -
0 05 34.0 22.6 0.19 Oct. 10 2006jt Oct. 2 21 58 48.06 + 0 11 51.8 21.9
0.14 Oct. 17 2006ju Oct. 2 23 24 39.01 - 0 43 06.0 21.9 0.15 Oct. 13
2006jv Oct. 3 1 30 32.21 + 0 13 11.2 23.3 0.37 Oct. 10 2006jw Oct. 3
2 23 22.30 + 0 49 08.4 22.5 0.25 Oct. 16 2006jx Oct. 3 3 52 14.06 +
0 17 31.5 22.8 0.25 Oct. 12 2006jy Oct. 4 1 02 56.34 + 0 10 59.2 21.7
0.2 Oct. 18 2006jz Oct. 11 0 11 24.80 + 0 42 09.8 21.9 0.20 Oct. 24
2006ka Oct. 11 2 18 26.68 + 0 13 36.0 21.9 0.25 Oct. 16 2006kb Oct. 12
20 19 10.21 - 1 03 52.2 20.2 0.14 Oct. 16 2006kc Oct. 12 22 30 10.61 -
0 24 28.2 21.0 0.22 Oct. 16 2006kd Oct. 13 1 07 50.00 + 0 49 41.5 21.2
0.13 Oct. 10
Title: Supernova 2006iw
Authors: Bassett, B.; Becker, A.; Brewington, H.; Choi, C.; Cinabro,
D.; Dejongh, F.; Dembicky, J.; Depoy, D. L.; Dilday, B.; Doi, M.;
Frieman, J.; Garnavich, P.; Harvanek, M.; Hogan, C.; Holtzman, J.;
Im, M.; Jha, S.; Konishi, K.; Krzesinski, J.; Lampeitl, H.; Kessler,
R.; Ketzeback, B.; Long, D.; Malanushenko, O.; Marriner, J.; McMillan,
R.; Miknaitis, G.; Morokuma, T.; Nichol, R.; Pan, K.; Prieto, J. L.;
Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Saurage, G.; Schneider,
D.; Smith, M.; Snedden, S.; Takanashi, N.; Tokita, K.; van der Heyden,
K.; Watters, S.; Wheeler, C.; Yasuda, N.; Zheng, C.
Bibcode: 2006CBET..663....1B
Altcode: 2006CBET..663A...1B
Further to CBET 611, B. Bassett, South African Astronomical Observatory
(SAAO); A. Becker, University of Washington (UW); H. Brewington, Apache
Point Observatory (APO); C. Choi, Seoul National University (SNU);
D. Cinabro, Wayne State University; F. DeJongh, Fermilab; J. Dembicky,
APO; D. L. DePoy, Ohio State University (OSU); B. Dilday, University of
Chicago (UC); M. Doi, University of Tokyo (UoT); J. Frieman, Fermilab
and UC; P. Garnavich, University of Notre Dame; M. Harvanek, APO;
C. Hogan, UW; J. Holtzman, New Mexico State University; M. Im, SNU;
S. Jha, Stanford University (SU); K. Konishi, UoT; J. Krzesinski, APO;
H. Lampeitl, Space Telescope Science Institute (STScI); R. Kessler,
UC; B. Ketzeback, D. Long, O. Malanushenko, and V. Malanushenko,
APO; J. Marriner, Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab;
T. Morokuma, UoT; R. Nichol, University of Portsmouth (UP); K. Pan,
APO; J. L. Prieto, OSU; M. Richmond, Rochester Institute of Technology;
A. Riess, STScI; R. Romani, SU; M. Sako, University of Pennsylvania;
G. Saurage, APO; D. Schneider, Pennsylvania State University; M. Smith,
UP; S. Snedden, APO; N. Takanashi and K. Tokita, UoT; K. van der Heyden,
SAAO; S. Watters, APO; C. Wheeler, University of Texas; N. Yasuda,
UoT; and C. Zheng, SU, on behalf of the Sloan Digital Sky Survey II
collaboration, report the discovery of an apparent supernova (magnitude
g = 20.4) on g, r, and i images taken with the SDSS 2.5-m telescope
at APO by the SDSS observing team on Oct. 3 UT. Confirming SDSS g,
r, and i images were obtained with the Hiltner 2.4-m telescope at MDM
on Oct. 8. The new object is located at R.A. = 23h21m19s.48, Decl. =
+0o15'35".1 (equinox 2000.0). The nearby apparent-host galaxy's center
is located at position end figures 19s.19, 32".8; this galaxy has a
prior SDSS spectrum indicating a redshift of 0.03. SN 2006iw was not
detected in an image taken on Oct. 1, with a 5-sigma upper g-magnitude
limit of approximately 22.6.
Title: Supernovae 2006iw and 2006ix-2006ja
Authors: Bassett, B.; Becker, A.; Brewington, H.; Choi, C.; Cinabro,
D.; Dejongh, F.; Dembicky, J.; Depoy, D. L.; Dilday, B.; Doi, M.;
Frieman, J.; Garnavich, P.; Harvanek, M.; Hogan, C.; Holtzman, J.; Im,
M.; Jha, S.; Konishi, K.; Krzesinski, J.; Lampeitl, H.; Kessler, R.;
Ketzeback, B.; Long, D.; Malanushenko, O.; Marriner, J.; McGinnis,
D.; McMillan, R.; Miknaitis, G.; Morokuma, T.; Nichol, R.; Pan, K.;
Prieto, J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Saurage,
G.; Schneider, D.; Smith, M.; Snedden, S.; Takanashi, N.; Tokita, K.;
van der Heyden, K.; Watters, S.; Wheeler, C.; Yasuda, N.; Zheng, C.;
Hopp, U.; Kollatschny, W.; Eastman, J.
Bibcode: 2006CBET..667....1B
Altcode: 2006CBET..667A...1B
Further to CBETs 611 and 657, B. Bassett, South African Astronomical
Observatory (SAAO); A. Becker, University of Washington (UW);
H. Brewington, Apache Point Observatory (APO); C. Choi, Seoul National
University (SNU); D. Cinabro, Wayne State University; F. DeJongh,
Fermilab; J. Dembicky, APO; D. L. DePoy, Ohio State University (OSU);
B. Dilday, University of Chicago (UC); M. Doi, University of Tokyo
(UoT); J. Frieman, Fermilab and UC; P. Garnavich, University of
Notre Dame; M. Harvanek, APO; C. Hogan, UW; J. Holtzman, New Mexico
State University; M. Im, SNU; S. Jha, Stanford University (SU);
K. Konishi, UoT; J. Krzesinski, APO; H. Lampeitl, Space Telescope
Science Institute (STScI); R. Kessler, UC; B. Ketzeback, D. Long,
O. Malanushenko, and V. Malanushenko, APO; J. Marriner and D. McGinnis,
Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab; T. Morokuma, UoT;
R. Nichol, University of Portsmouth (UP); K. Pan, APO; J. L. Prieto,
OSU; M. Richmond, Rochester Institute of Technology; A. Riess, STScI;
R. Romani, SU; M. Sako, University of Pennsylvania; G. Saurage,
APO; D. Schneider, Pennsylvania State University; M. Smith, UP;
S. Snedden, APO; N. Takanashi and K. Tokita, UoT; K. van der Heyden,
SAAO; S. Watters, APO; C. Wheeler, University of Texas; N. Yasuda,
UoT; and C. Zheng, SU, on behalf of the Sloan Digital Sky Survey II
collaboration, report the discovery of four new supernovae on multiple
g, r, and i images taken with the SDSS 2.5-m telescope at APO by the
SDSS observing team. J. Marriner, D. McGinnis, and J. Dembicky report
that spectroscopic observations with the ARC 3.5-m telescope at APO on
Oct. 2 UT indicate that 2006ix is a type-II supernova. Romani, Zheng,
Sako, Wheeler, and Schneider, together with U. Hopp (University of
Munich) and W. Kollatschny (University of Goettingen), report that
spectroscopic observations with the Hobby Eberly Telescope on Oct. 9
indicate that 2006iy is a type-Ia supernova. Prieto and J. Eastman
(OSU) report that spectroscopic observations, obtained with the
Hiltner 2.4-m telescope at MDM Observatory on Kitt Peak on Oct. 10,
indicate that 2006iz is a type-Ia supernova and 2006ja is a probable
type-Ia supernova. The discovery magnitudes tabulated below are all
SDSS g magnitudes. Spectroscopic redshifts are given in the column
labelled "z". Peak dates (all 2006) are approximate estimates from
early fits to the multi-band light curves. SN Discov. R.A. (2000.0)
Decl. Mag. z Estimated Date UT Peak Date 2006ix Sept. 16 23 59 14.03 -
0 18 39.7 22.6 0.08 Oct. 1 2006iy Sept. 20 22 01 52.82 + 1 02 42.1
22.5 0.20 Oct. 5 2006iz Sept. 30 21 16 17.20 + 0 33 34.2 21.1 0.12
Oct. 14 2006ja Sept. 30 22 26 51.91 + 0 30 21.8 21.3 0.11 Oct. 14
Also, further to CBET 663, Prieto and Eastman report that a spectrum
of 2006iw, obtained with the Hiltner 2.4-m telescope on Oct. 10,
shows it to be a type-II supernova.
Title: Supernovae 2006gk, 2006gl, 2006gm, 2006gn, 2006go, 2006gp,
2006gq
Authors: Bassett, B.; Becker, A.; Brewington, H.; Choi, C.; Cinabro,
D.; Dejongh, F.; Dembicky, J.; Depoy, D. L.; Dilday, B.; Doi, M.;
Frieman, J.; Garnavich, P.; Harvanek, M.; Hogan, C.; Holtzman,
J.; Im, M.; Jha, S.; Konishi, K.; Krzesinski, J.; Lampeitl, H.;
Kessler, R.; Ketzeback, B.; Long, D.; Malanushenko, O.; Marriner,
J.; McMillan, R.; Miknaitis, G.; Morokuma, T.; Nichol, R.; Pan,
K.; Prieto, J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.;
Schneider, D.; Smith, M.; Snedden, S.; Takanashi, N.; Tokita, K.;
van der Heyden, K.; Watters, S.; Wheeler, C.; Yasuda, N.; Zheng, C.;
Hopp, U.; Kollatschny, W.; Ihara, Y.; Vaisanen, P.
Bibcode: 2006CBET..637....1B
Altcode: 2006CBET..637A...1B
Further to CBET 611, B. Bassett, South African Astronomical Observatory
(SAAO); A. Becker, University of Washington (UW); H. Brewington, Apache
Point Observatory (APO); C. Choi, Seoul National University (SNU);
D. Cinabro, Wayne State University; F. DeJongh, Fermilab; J. Dembicky,
APO; D. L. DePoy, Ohio State University (OSU); B. Dilday, University of
Chicago (UC); M. Doi, University of Tokyo (UoT); J. Frieman, Fermilab
and UC; P. Garnavich, University of Notre Dame; M. Harvanek, APO;
C. Hogan, UW; J. Holtzman, New Mexico State University; M. Im, SNU;
S. Jha, Stanford University (SU); K. Konishi, UoT; J. Krzesinski, APO;
H. Lampeitl, Space Telescope Science Institute (STScI); R. Kessler,
UC; B. Ketzeback, D. Long, O. Malanushenko, and V. Malanushenko,
APO; J. Marriner, Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab;
T. Morokuma, UoT; R. Nichol, University of Portsmouth (UP); K. Pan,
APO; J. L. Prieto, OSU; M. Richmond, Rochester Institute of Technology;
A. Riess, STScI; R. Romani, SU; M. Sako, University of Pennsylvania;
D. Schneider, Pennsylvania State University; M. Smith, UP; S. Snedden,
APO; N. Takanashi and K. Tokita, UoT; K. van der Heyden, SAAO;
S. Watters, APO; C. Wheeler, University of Texas; N. Yasuda, UoT;
and C. Zheng, SU, on behalf of the Sloan Digital Sky Survey II
collaboration reports the discovery of seven supernovae on multiple g,
r, and i images taken with the SDSS 2.5-m telescope at Apache Point
Observatory by the SDSS observing team. Romani, Zheng, Sako, Wheeler,
and Schneider, together with U. Hopp (University of Munich) and
W. Kollatschny (University of Goettingen), report that spectroscopic
observations with the Hobby Eberly Telescope on Sept. 18 and 19 UT
show that five of the new objects (2006gk, 2006gl, 2006gm, 2006go,
and 2006gp) are type-Ia supernovae. Spectroscopic observations with
the Subaru 8-m telescope on Sept. 18 by M. Doi, N. Takanashi, Y. Ihara,
T. Morokuma, K. Tokita, K. Konishi, and N. Yasuda indicate that 2006gq
is a probable type-II supernova. B. Bassett, K. van der Heyden, and
P. Vaisanen, SAAO, report that a spectrum of 2006gn, taken with the
South African Large Telescope on Sept. 18, shows it to be a type-Ia
supernova. The discovery and peak magnitudes tabulated below are all
SDSS g magnitudes, with the exception of 2006go (r magnitude), and
discovery dates are UT. Spectroscopic redshifts are given in the column
labelled "z". Peak magnitudes and dates (all 2006) are estimates from
early fits to the multi-band light curves. SN Discov. R.A. (2000.0)
Decl. Mag. z Estimated Peak Date UT Date Mag. 2006gk Aug. 27 21 25
23.34 - 1 02 01.2 21.8 0.29 Aug. 20 21.6 2006gl Aug. 28 1 05 50.11 +
0 08 41.3 21.6 0.27 Aug. 23 21.4 2006gm Aug. 28 22 59 07.46 - 0 37
38.5 21.5 0.25 Aug. 17 21.3 2006gn Aug. 28 23 11 18.43 + 0 30 16.6
20.2 0.10 Sept. 8 19.1 2006go Sept.12 0 24 33.76 - 0 16 44.7 22.0r
0.37 Sept.18 22 r 2006gp Sept.15 22 34 10.00 + 0 03 17.9 22.2 0.21
Sept. 7 21.8 2006gq Sept.17 1 45 12.54 + 0 21 23.2 20.2 0.07 -- --
Title: Supernovae 2006eq and 2006er
Authors: Bassett, B.; Becker, A.; Brewington, H.; Cinabro, D.;
Dejongh, F.; Dembicky, J.; Depoy, D. L.; Dilday, B.; Doi, M.; Frieman,
J.; Garnavich, P.; Harvanek, M.; Hogan, C.; Holtzman, J.; Jha, S.;
Konishi, K.; Krzesinski, J.; Lampeitl, H.; Kessler, R.; Ketzeback, B.;
Long, D.; Malanushenko, O.; Marriner, J.; McMillan, R.; Miknaitis,
G.; Morokuma, T.; Nichol, R.; Pan, K.; Prieto, J. L.; Richmond, M.;
Riess, A.; Romani, R.; Sako, M.; Schneider, D.; Smith, M.; Snedden,
S.; Takanashi, N.; Tokita, K.; van der Heyden, K.; Watters, S.;
Yasuda, N.; Zheng, C.; Hicken, M.; Kirshner, R.; Calkins, M.
Bibcode: 2006CBET..611....1B
Altcode:
B. Bassett, South African Astronomical Observatory (SAAO); A. Becker,
University of Washington (UW); H. Brewington, Apache Point Observatory
(APO); D. Cinabro, Wayne State University; F. DeJongh, Fermilab;
J. Dembicky, APO; D. L. DePoy, Ohio State University (OSU); B. Dilday,
University of Chicago (UC); M. Doi, University of Tokyo; J. Frieman,
Fermilab and UC; P. Garnavich, University of Notre Dame; M. Harvanek,
APO; C. Hogan, UW; J. Holtzman, New Mexico State University; S. Jha,
Stanford University (SU); K. Konishi, University of Tokyo (UT);
J. Krzesinski, APO; H. Lampeitl, Space Telescope Science Institute
(STScI); R. Kessler, UC; B. Ketzeback, D. Long, O. Malanushenko,
and V. Malanushenko, APO; J. Marriner, Fermilab; R. McMillan, APO;
G. Miknaitis, Fermilab; T. Morokuma, UT; R. Nichol, University of
Portsmouth (UP); K. Pan, APO; J. L. Prieto, OSU; M. Richmond, Rochester
Institute of Technology; A. Riess, STScI; R. Romani, SU; M. Sako, SU and
University of Pennsylvania; D. Schneider, Pennsylvania State University;
M. Smith, UP; S. Snedden, APO; N. Takanashi and K. Tokita, UT; K. van
der Heyden, SAAO; S. Watters, APO; N. Yasuda, UT; and C. Zheng, SU,
on behalf of the Sloan Digital Sky Survey II collaboration, report
the discovery of two apparent supernovae on g, r, and i images taken
on the night of Aug. 26 with the SDSS 2.5-m telescope at Apache Point
Observatory by the SDSS observing team. The objects are offset from
putative host galaxies and are not visible in template images taken in
previous years; these template images are co-added images from a number
of previous SDSS images taken under photometric conditions with good
seeing (limiting g magnitude approximately 21.5 or fainter). M. Hicken
and R. Kirshner report that follow-up SDSS r- and i-band images taken
by M. Calkins using the F. L. Whipple Observatory 1.2-m telescope on
the night of Aug. 29 confirm the presence of both objects. SN 2006eq,
at R.A. = 21h28m37s.13, Decl. = +1o13'41".2 (equinox 2000.0) had an
approximate g-band discovery magnitude of 18.7; the nearby host galaxy
(with position end figures 37s.60, 48".6) has a prior SDSS spectrum
indicating a redshift of 0.0495. SN 2006er, at R.A. = 0h21m37s.54,
Decl. = -1o00'35".9, had an approximate discovery g magnitude of 19.5;
the nearby host galaxy (with position end figures 37s.89, 38".2)
has a prior SDSS spectrum indicating a redshift of 0.0843. The colors
and magnitudes of both objects are consistent with those of type-Ia
supernovae near peak light at the time of discovery.
Title: Supernovae 2006gd, 2006ge, 2006gf, 2006gg, 2006gh
Authors: Bassett, B.; Becker, A.; Brewington, H.; Choi, C.; Cinabro,
D.; Dejongh, F.; Dembicky, J.; Depoy, D. L.; Dilday, B.; Doi, M.;
Frieman, J.; Garnavich, P.; Harvanek, M.; Hogan, C.; Holtzman, J.;
Im, M.; Jha, S.; Konishi, K.; Krzesinski, J.; Lampeitl, H.; Kessler,
R.; Ketzeback, B.; Long, D.; Malanushenko, O.; Marriner, J.; McMillan,
R.; Miknaitis, G.; Morokuma, T.; Nichol, R.; Pan, K.; Prieto, J. L.;
Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Schneider, D.; Smith,
M.; Snedden, S.; Takanashi, N.; Tokita, K.; van der Heyden, K.;
Watters, S.; Wheeler, C.; Yasuda, N.; Zheng, C.; Ihara, Y.
Bibcode: 2006CBET..629....1B
Altcode: 2006CBET..629A...1B
Further to CBETs 611 and 627, B. Bassett, South African Astronomical
Observatory (SAAO); A. Becker, University of Washington (UW);
H. Brewington, Apache Point Observatory (APO); C. Choi, Seoul National
University (SNU); D. Cinabro, Wayne State University; F. DeJongh,
Fermilab; J. Dembicky, APO; D. L. DePoy, Ohio State University (OSU);
B. Dilday, University of Chicago (UC); M. Doi, University of Tokyo
(UoT); J. Frieman, Fermilab and UC; P. Garnavich, University of Notre
Dame; M. Harvanek, APO; C. Hogan, UW; J. Holtzman, New Mexico State
University; M. Im, SNU; S. Jha, Stanford University (SU); K. Konishi,
UoT; J. Krzesinski, APO; H. Lampeitl, Space Telescope Science Institute
(STScI); R. Kessler, UC; B. Ketzeback, D. Long, O. Malanushenko,
and V. Malanushenko, APO; J. Marriner, Fermilab; R. McMillan, APO;
G. Miknaitis, Fermilab; T. Morokuma, UoT; R. Nichol, University
of Portsmouth (UP); K. Pan, APO; J. L. Prieto, OSU; M. Richmond,
Rochester Institute of Technology; A. Riess, STScI; R. Romani, SU;
M. Sako, University of Pennsylvania; D. Schneider, Pennsylvania
State University; M. Smith, UP; S. Snedden, APO; N. Takanashi and
K. Tokita, UoT; K. van der Heyden, SAAO; S. Watters, APO; C. Wheeler,
University of Texas; N. Yasuda, UoT; and C. Zheng, SU, on behalf of
the Sloan Digital Sky Survey II collaboration, report the discovery
of five additional supernovae on multiple g, r, and i images taken
with the SDSS 2.5-m telescope at Apache Point Observatory by the
SDSS observing team. Spectroscopic observations with the Subaru 8-m
telescope on Sept. 18 UT by N. Takanashi, Y. Ihara, T. Morokuma,
K. Tokita, K. Konishi, and N. Yasuda indicate that four of the
supernovae (2006ge, 2006gf, 2006gg, 2006gh) are type-Ia events, and
one (2006gd) is a type-IIP event. The discovery and peak magnitudes
tabulated below are all SDSS g magnitudes, with the exception of
2006gf (r magnitude, denoted by "r" in the table below). Spectroscopic
redshifts are given in the column labelled "z". Peak magnitudes and
dates (all 2006) are estimates from early fits to the multi-band light
curves. SN Discov. R.A. (2000.0) Decl. Mag. z Estimated Peak Date UT
Date Mag. 2006gd Aug. 28 1 10 26.39 - 1 04 04.8 22.8 0.15 Aug. 21
21.3 2006ge Aug. 28 21 49 35.79 + 0 00 03.8 21.7 0.28 Aug. 20 21.6
2006gf Sept.11 0 46 24.35 + 0 00 12.5 21.4r 0.12 Sept. 8 21.3r 2006gg
Sept.12 0 28 12.51 + 0 07 04.8 21.3 0.20 Sept.21 20.7 2006gh Sept.12
0 54 46.94 - 0 15 03.1 21.2 0.25 Sept.16 21.1
Title: Supernovae 2006er, 2006ew-2006fc
Authors: Bassett, B.; Becker, A.; Brewington, H.; Choi, C.; Cinabro,
D.; Dejongh, F.; Dembicky, J.; Depoy, D. L.; Dilday, B.; Doi, M.;
Frieman, J.; Garnavich, P.; Harvanek, M.; Hogan, C.; Holtzman, J.;
Im, M.; Jha, S.; Konishi, K.; Krzesinski, J.; Lampeitl, H.; Kessler,
R.; Ketzeback, B.; Long, D.; Malanushenko, O.; Marriner, J.; McMillan,
R.; Miknaitis, G.; Morokuma, T.; Nichol, R.; Pan, K.; Prieto, J. L.;
Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Schneider, D.; Smith,
M.; Snedden, S.; Takanashi, N.; Tokita, K.; van der Heyden, K.;
Watters, S.; Yasuda, N.; Zheng, C.; Rau, A.; Ofek, E.; Soderberg,
A.; Kulkarni, S.; Aragon-Salamanca, A.; Bremer, M.; Turatto, M.;
Goobar, A.; Sollerman, J.; Ruiz-Lapuente, P.; Castander, F.; Romer,
A.; Collins, C.; Lucey, J.; Edge, A.
Bibcode: 2006CBET..621....1B
Altcode:
Further to CBET 611, B. Bassett, South African Astronomical Observatory
(SAAO); A. Becker, University of Washington (UW); H. Brewington, Apache
Point Observatory (APO); C. Choi, Seoul National University (SNU);
D. Cinabro, Wayne State University; F. DeJongh, Fermilab; J. Dembicky,
APO; D. L. DePoy, Ohio State University (OSU); B. Dilday, University of
Chicago (UC); M. Doi, University of Tokyo (UT); J. Frieman, Fermilab
and UC; P. Garnavich, University of Notre Dame; M. Harvanek, APO;
C. Hogan, UW; J. Holtzman, New Mexico State University; M. Im, SNU;
S. Jha, Stanford University (SU); K. Konishi, UT; J. Krzesinski, APO;
H. Lampeitl, Space Telescope Science Institute (STScI); R. Kessler,
UC; B. Ketzeback, D. Long, O. Malanushenko, and V. Malanushenko,
APO; J. Marriner, Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab;
T. Morokuma, UT; R. Nichol, University of Portsmouth (UP); K. Pan, APO;
J. L. Prieto, OSU; M. Richmond, Rochester Institute of Technology;
A. Riess, STScI; R. Romani, SU; M. Sako, University of Pennsylvania;
D. Schneider, Pennsylvania State University; M. Smith, UP; S. Snedden,
APO; N. Takanashi and K. Tokita, UT; K. van der Heyden, SAAO;
S. Watters, APO; N. Yasuda, UT; and C. Zheng, SU, on behalf of the
Sloan Digital Sky Survey II collaboration, report the discovery of
seven supernovae on multiple g, r, and i images taken with the SDSS
2.5-m telescope at Apache Point Observatory by the SDSS observing
team. For one of the candidates, 2006fc, a second epoch of imaging
confirming the apparent supernova was taken on Sept. 12 UT by A. Rau,
E. Ofek, A. Soderberg, and S. Kulkarni using the Palomar 1.5-m
telescope. A. Aragon-Salamanca, University of Nottingham; M. Bremer,
University of Bristol; M. Turatto, University of Padova; A. Goobar,
University of Stockholm; J. Sollerman, University of Copenhagen;
P. Ruiz-Lapuente and F. Castander, University of Barcelona; A. Romer,
University of Sussex, C. Collins, Liverpool John Moores University;
and J. Lucey and A. Edge, University of Durham, report that spectroscopy
obtained by R. Nichol and M. Smith on the night of Sept. 13 UT with the
ESO 3.6-m New Technology Telescope show five of the new supernovae to
be type-Ia events, one to be a type II event (2006ez), and one to be
a possible type-Ia event (2006fa). The discovery magnitudes tabulated
below are all g magnitudes, and discovery dates are UT. Spectroscopic
redshifts are given in the column labelled z. Peak g magnitudes and
dates (all 2006) are estimates from early fits to the multi-band light
curves. SN Discov. R.A. (2000.0) Decl. Mag. z Estimated Peak Date
Date Mag. 2006ew Aug. 27 20 20 02.17 - 0 58 32.5 20.1 0.14 Aug. 22
20.0 2006ex Aug. 27 20 38 43.86 - 0 28 28.3 20.1 0.14 Aug. 29 20.1
2006ey Aug. 27 21 07 03.73 + 0 43 23.1 20.5 0.17 Aug. 29 20.5 2006ez
Aug. 27 21 33 49.26 - 1 00 57.4 20.3 -- Sep. 14 19.3 2006fa Aug. 27 21
35 30.74 - 0 58 49.0 20.8 -- Sept. 2 20.4 2006fb Aug. 27 23 35 51.51
- 0 10 37.6 21.1 0.24 Sept. 2 20.9 2006fc Sep. 11 21 34 46.61 + 1 10
33.3 20.4 0.12 Sept. 8 20.3 In addition, a New Technology Telescope
spectrum of 2006er shows it to be a type-Ia event two to three weeks
past maximum light, with a redshift consistent with that of the SDSS
host galaxy reported on CBET 611.
Title: Supernovae 2006ho-2006ht
Authors: Bassett, B.; Becker, A.; Brewington, H.; Choi, C.; Cinabro,
D.; Dejongh, F.; Dembicky, J.; Depoy, D. L.; Dilday, B.; Doi, M.;
Frieman, J.; Garnavich, P.; Harvanek, M.; Hogan, C.; Holtzman, J.; Im,
M.; Jha, S.; Konishi, K.; Krzesinski, J.; Lampeitl, H.; Kessler, R.;
Ketzeback, B.; Long, D.; Malanushenko, O.; Marriner, J.; McGinnis,
D.; McMillan, R.; Miknaitis, G.; Morokuma, T.; Nichol, R.; Pan, K.;
Prieto, J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Saurage,
G.; Schneider, D.; Smith, M.; Snedden, S.; Takanashi, N.; Tokita, K.;
van der Heyden, K.; Watters, S.; Wheeler, C.; Yasuda, N.; Zheng, C.;
Hopp, U.; Kollatschny, W.
Bibcode: 2006CBET..654....1B
Altcode: 2006CBET..654A...1B
Further to CBET 611, B. Bassett, South African Astronomical Observatory
(SAAO); A. Becker, University of Washington (UW); H. Brewington, Apache
Point Observatory (APO); C. Choi, Seoul National University (SNU);
D. Cinabro, Wayne State University; F. DeJongh, Fermilab; J. Dembicky,
APO; D. L. DePoy, Ohio State University (OSU); B. Dilday, University of
Chicago (UC); M. Doi, University of Tokyo (UoT); J. Frieman, Fermilab
and UC; P. Garnavich, University of Notre Dame; M. Harvanek, APO;
C. Hogan, UW; J. Holtzman, New Mexico State University; M. Im, SNU;
S. Jha, Stanford University (SU); K. Konishi, UoT; J. Krzesinski, APO;
H. Lampeitl, Space Telescope Science Institute (STScI); R. Kessler,
UC; B. Ketzeback, D. Long, O. Malanushenko, and V. Malanushenko, APO;
J. Marriner and D. McGinnis, Fermilab; R. McMillan, APO; G. Miknaitis,
Fermilab; T. Morokuma, UoT; R. Nichol, University of Portsmouth (UP);
K. Pan, APO; J. L. Prieto, OSU; M. Richmond, Rochester Institute
of Technology; A. Riess, STScI; R. Romani, SU; M. Sako, University
of Pennsylvania; G. Saurage, APO; D. Schneider, Pennsylvania State
University; M. Smith, UP; S. Snedden, APO; N. Takanashi and K. Tokita,
UoT; K. van der Heyden, SAAO; S. Watters, APO; C. Wheeler, University
of Texas; N. Yasuda, UoT; and C. Zheng, SU, on behalf of the Sloan
Digital Sky Survey II collaboration, report the discovery of six new
supernovae on multiple g, r, and i images taken with the SDSS 2.5-m
telescope at APO by the SDSS observing team. Romani, Zheng, Sako,
Wheeler, and Schneider, together with U. Hopp (University of Munich)
and W. Kollatschny (University of Goettingen), report that spectroscopic
observations with the Hobby Eberly Telescope on Sept. 27-29 UT show that
2006hp and 2006hs are type-Ia supernovae. Spectroscopic observations by
P. Garnavich and J. Prieto with the Kitt Peak National Observatory 4-m
telescope on Sept. 27 show that 2006ht is a type-Ia supernova and that
2006hq is a probable type-Ia supernova. J. Marriner and D. McGinnis
report that observations with the ARC 3.5-m telescope at APO on
Sept. 27 indicate that 2006ho is a type-II supernova and that 2006hr
is a probable type-Ia supernova. The discovery magnitudes tabulated
below are all SDSS g magnitudes. Spectroscopic redshifts are given in
the column labelled "z". Peak dates (all 2006) are approximate estimates
from early fits to the multi-band light curves. SN Discov. R.A. (2000.0)
Decl. Mag. z Estimated Date UT Peak Date 2006ho Aug. 28 0 33 28.05 -
0 19 12.9 19.6 0.11 Sept. 7 2006hp Sept.16 0 24 14.32 - 0 14 53.7 23.0
0.25 Oct. 2 2006hq Sept.16 23 39 47.15 + 0 12 18.8 22.4 0.07 Sept.25
2006hr Sept.17 1 50 15.55 - 0 53 14.1 20.9 0.16 Sept.26 2006hs Sept.17
2 36 04.86 - 0 59 39.0 22.4 0.26 Sept.17 2006ht Sept.20 21 12 47.66 +
0 54 58.8 23.0 0.20 Oct. 5
Title: Supernovae 2006fo, 2006gu-2006gx
Authors: Bassett, B.; Becker, A.; Brewington, H.; Choi, C.; Cinabro,
D.; Dejongh, F.; Dembicky, J.; Depoy, D. L.; Dilday, B.; Doi, M.;
Frieman, J.; Garnavich, P.; Harvanek, M.; Hogan, C.; Holtzman,
J.; Im, M.; Jha, S.; Konishi, K.; Krzesinski, J.; Lampeitl, H.;
Kessler, R.; Ketzeback, B.; Long, D.; Malanushenko, O.; Marriner,
J.; McMillan, R.; Miknaitis, G.; Morokuma, T.; Nichol, R.; Pan,
K.; Prieto, J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.;
Schneider, D.; Smith, M.; Snedden, S.; Takanashi, N.; Tokita, K.;
van der Heyden, K.; Watters, S.; Wheeler, C.; Yasuda, N.; Zheng, C.;
Hopp, U.; Kollatschny, W.
Bibcode: 2006CBET..643....1B
Altcode: 2006CBET..643A...1B
Further to CBETs 611 and 637, B. Bassett, South African Astronomical
Observatory (SAAO); A. Becker, University of Washington (UW);
H. Brewington, Apache Point Observatory (APO); C. Choi, Seoul National
University (SNU); D. Cinabro, Wayne State University; F. DeJongh,
Fermilab; J. Dembicky, APO; D. L. DePoy, Ohio State University (OSU);
B. Dilday, University of Chicago (UC); M. Doi, University of Tokyo
(UoT); J. Frieman, Fermilab and UC; P. Garnavich, University of Notre
Dame; M. Harvanek, APO; C. Hogan, UW; J. Holtzman, New Mexico State
University; M. Im, SNU; S. Jha, Stanford University (SU); K. Konishi,
UoT; J. Krzesinski, APO; H. Lampeitl, Space Telescope Science Institute
(STScI); R. Kessler, UC; B. Ketzeback, D. Long, O. Malanushenko,
and V. Malanushenko, APO; J. Marriner, Fermilab; R. McMillan, APO;
G. Miknaitis, Fermilab; T. Morokuma, UoT; R. Nichol, University
of Portsmouth (UP); K. Pan, APO; J. L. Prieto, OSU; M. Richmond,
Rochester Institute of Technology; A. Riess, STScI; R. Romani, SU;
M. Sako, University of Pennsylvania; D. Schneider, Pennsylvania State
University; M. Smith, UP; S. Snedden, APO; N. Takanashi and K. Tokita,
UoT; K. van der Heyden, SAAO; S. Watters, APO; C. Wheeler, University
of Texas; N. Yasuda, UoT; and C. Zheng, SU, on behalf of the Sloan
Digital Sky Survey II collaboration, report the discovery of four
new type-Ia supernovae on multiple g, r, and i images taken with the
SDSS 2.5-m telescope at Apache Point Observatory by the SDSS observing
team. Romani, Zheng, Sako, Wheeler, and Schneider, together with U. Hopp
(University of Munich) and W. Kollatschny (University of Goettingen),
report that spectroscopic observations with the Hobby Eberly Telescope
on Sept. 20 and 21 UT show that the four new objects are all type-Ia
supernovae. The discovery magnitudes tabulated below are all SDSS g
magnitudes. Spectroscopic redshifts are given in the column labelled
"z". Peak dates (all 2006) of expected maximum brightness are estimates
from early fits to the multi-band light curves. SN Discov. R.A. (2000.0)
Decl. Mag. z Estimated Date UT Peak Date 2006gu Aug. 27 0 40 38.96 -
0 04 24.9 21.1 0.24 Aug. 29 2006gv Sept.11 1 48 36.37 + 0 19 41.6 21.0
0.20 Sept.13 2006gw Sept.11 1 57 53.50 - 0 32 02.9 21.7 0.33 Sept.11
2006gx Sept.16 2 48 14.08 - 0 20 49.3 21.2 0.18 Sept.13 In addition,
they report that further analysis of the NTT spectrum of 2006fo
(Cf. CBET 624) shows it to be consistent with a type-Ic supernova,
with features similar to that of 1999ex.
Title: Supernovae 2006hc-2006hm
Authors: Bassett, B.; Becker, A.; Brewington, H.; Choi, C.; Cinabro,
D.; Dejongh, F.; Dembicky, J.; Depoy, D. L.; Dilday, B.; Doi, M.;
Frieman, J.; Garnavich, P.; Harvanek, M.; Hogan, C.; Holtzman,
J.; Im, M.; Jha, S.; Konishi, K.; Krzesinski, J.; Lampeitl, H.;
Kessler, R.; Ketzeback, B.; Long, D.; Malanushenko, O.; Marriner,
J.; McMillan, R.; Miknaitis, G.; Morokuma, T.; Nichol, R.; Pan, K.;
Prieto, J. L.; Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Saurage,
G.; Schneider, D.; Smith, M.; Snedden, S.; Takanashi, N.; Tokita, K.;
van der Heyden, K.; Watters, S.; Wheeler, C.; Yasuda, N.; Zheng, C.;
Hopp, U.; Kollatschny, W.
Bibcode: 2006CBET..650....1B
Altcode: 2006CBET..650A...1B
Further to CBET 611, B. Bassett, South African Astronomical Observatory
(SAAO); A. Becker, University of Washington (UW); H. Brewington, Apache
Point Observatory (APO); C. Choi, Seoul National University (SNU);
D. Cinabro, Wayne State University; F. DeJongh, Fermilab; J. Dembicky,
APO; D. L. DePoy, Ohio State University (OSU); B. Dilday, University of
Chicago (UC); M. Doi, University of Tokyo (UoT); J. Frieman, Fermilab
and UC; P. Garnavich, University of Notre Dame; M. Harvanek, APO;
C. Hogan, UW; J. Holtzman, New Mexico State University; M. Im, SNU;
S. Jha, Stanford University (SU); K. Konishi, UoT; J. Krzesinski, APO;
H. Lampeitl, Space Telescope Science Institute (STScI); R. Kessler,
UC; B. Ketzeback, D. Long, O. Malanushenko, and V. Malanushenko,
APO; J. Marriner, Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab;
T. Morokuma, UoT; R. Nichol, University of Portsmouth (UP); K. Pan,
APO; J. L. Prieto, OSU; M. Richmond, Rochester Institute of Technology;
A. Riess, STScI; R. Romani, SU; M. Sako, University of Pennsylvania;
G. Saurage, APO; D. Schneider, Pennsylvania State University;
M. Smith, UP; S. Snedden, APO; N. Takanashi and K. Tokita, UoT;
K. van der Heyden, SAAO; S. Watters, APO; C. Wheeler, University
of Texas; N. Yasuda, UoT; and C. Zheng, SU, on behalf of the Sloan
Digital Sky Survey II collaboration, report the discovery of eleven
new type-Ia supernovae on multiple g, r, and i images taken with
the SDSS 2.5-m telescope at APO by the SDSS observing team. The
spectroscopic observations of 2006hc, 2006hf, and 2006hl were obtained
by P. Garnavich and J. Prieto with the Kitt Peak National Observatory
4-m telescope on Sept. 26 and 27 UT, while spectroscopic observations
of the other eight new supernovae were made by Romani, Zheng, Sako,
Wheeler, and Schneider, together with U. Hopp (University of Munich)
and W. Kollatschny (University of Goettingen), with the Hobby Eberly
Telescope on Sept. 22-26. The discovery magnitudes tabulated below are
all SDSS g magnitudes. Spectroscopic redshifts are given in the column
labelled "z". Peak dates (all 2006) are approximate estimates from
early fits to the multi-band light curves. SN Discov. R.A. (2000.0)
Decl. Mag. z Estimated Date UT Peak Date 2006hc Sept.11 1 09 34.73 +
0 42 14.9 21.3 0.2 Sept.21 2006hd Sept.11 21 44 03.55 + 0 43 34.6 21.6
0.30 Sept.12 2006he Sept.11 22 04 24.11 + 0 41 28.4 21.9 0.21 Sept.21
2006hf Sept.11 23 00 52.49 - 0 58 52.1 21.8 0.22 Sept.25 2006hg Sept.16
1 40 58.41 - 0 43 40.3 21.9 0.24 Sept.15 2006hh Sept.16 2 42 26.97 -
0 47 38.9 21.9 0.24 Sept.21 2006hi Sept.17 1 23 46.04 + 0 49 0.0 23.0
0.26 Sept.24 2006hj Sept.18 21 10 21.14 + 0 55 57.5 21.3 0.23 Sept.18
2006hk Sept.18 23 20 29.54 - 1 09 28.2 21.3 0.29 Sept.18 2006hl Sept.18
23 22 45.98 + 0 31 58.4 21.1 0.15 Sept.25 2006hm Sept.18 23 26 14.81 -
0 22 56.1 22.2 0.33 Sept.10
Title: Supernovae 2006fq-2006ga
Authors: Bassett, B.; Becker, A.; Brewington, H.; Choi, C.; Cinabro,
D.; Dejongh, F.; Dembicky, J.; Depoy, D. L.; Dilday, B.; Doi, M.;
Frieman, J.; Garnavich, P.; Harvanek, M.; Hogan, C.; Holtzman, J.;
Im, M.; Jha, S.; Konishi, K.; Krzesinski, J.; Lampeitl, H.; Kessler,
R.; Ketzeback, B.; Long, D.; Malanushenko, O.; Marriner, J.; McMillan,
R.; Miknaitis, G.; Morokuma, T.; Nichol, R.; Pan, K.; Prieto, J. L.;
Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Schneider, D.; Smith,
M.; Snedden, S.; Takanashi, N.; Tokita, K.; van der Heyden, K.;
Watters, S.; Yasuda, N.; Zheng, C.; Aragon-Salamanca, A.; Bremer, M.;
Turatto, M.; Goobar, A.; Sollerman, J.; Ruiz-Lapuente, P.; Castander,
F.; Romer, A.; Collins, C.; Lucey, J.; Edge, A.; Ihara, Y.
Bibcode: 2006CBET..627....1B
Altcode: 2006CBET..627A...1B
Further to CBETs 623 and 624, B. Bassett, South African Astronomical
Observatory (SAAO); A. Becker, University of Washington (UW);
H. Brewington, Apache Point Observatory (APO); C. Choi, Seoul National
University (SNU); D. Cinabro, Wayne State University; F. DeJongh,
Fermilab; J. Dembicky, APO; D. L. DePoy, Ohio State University (OSU);
B. Dilday, University of Chicago (UC); M. Doi, University of Tokyo
(UoT); J. Frieman, Fermilab and UC; P. Garnavich, University of Notre
Dame; M. Harvanek, APO; C. Hogan, UW; J. Holtzman, New Mexico State
University; M. Im, SNU; S. Jha, Stanford University (SU); K. Konishi,
UoT; J. Krzesinski, APO; H. Lampeitl, Space Telescope Science Institute
(STScI); R. Kessler, UC; B. Ketzeback, D. Long, O. Malanushenko,
and V. Malanushenko, APO; J. Marriner, Fermilab; R. McMillan, APO;
G. Miknaitis, Fermilab; T. Morokuma, UoT; R. Nichol, University of
Portsmouth (UP); K. Pan, APO; J. L. Prieto, OSU; M. Richmond, Rochester
Institute of Technology; A. Riess, STScI; R. Romani, SU; M. Sako,
University of Pennsylvania; D. Schneider, Pennsylvania State University;
M. Smith, UP; S. Snedden, APO; N. Takanashi and K. Tokita, UoT; K. van
der Heyden, SAAO; S. Watters, APO; N. Yasuda, UoT; and C. Zheng,
SU, on behalf of the Sloan Digital Sky Survey II collaboration,
report the discovery of twelve additional supernovae on multiple
g, r, and i images taken with the SDSS 2.5-m telescope at Apache
Point Observatory by the SDSS observing team. A. Aragon-Salamanca,
University of Nottingham; M. Bremer, University of Bristol; M. Turatto,
University of Padova; A. Goobar, University of Stockholm; J. Sollerman,
University of Copenhagen; P. Ruiz-Lapuente and F. Castander, University
of Barcelona; A. Romer, University of Sussex; C. Collins, Liverpool
John Moores University; and J. Lucey and A. Edge, University of
Durham, report that spectroscopy obtained by R. Nichol and M. Smith
on Sept. 17 UT with the ESO 3.6-m New Technology Telescope (NTT)
shows five of the supernovae (2006fs, 2006fy, 2006fz, 2006fx, 2006fw)
to be type-Ia events, one (2006fq) to be a type-IIP event, and two
(2006fu and 2006fv) to be possible type-Ia events. Spectroscopic
observations with the Subaru 8-m telescope by N. Takanashi, Y. Ihara,
T. Morokuma, K. Tokita, K. Konishi, and N. Yasuda on the same night
indicates that two of the other supernovae (2006gb and 2006ft) are
of type Ia, and a third (2006fr) is a possible type-Ia event. Subaru
observations also confirm 2006fx as a type-Ia supernova. The twelfth
object, 2006ga, was observed by both NTT and Subaru and appears to be
a possible type-I event. The discovery magnitudes tabulated below are
all g magnitudes, and discovery dates are UT. Spectroscopic redshifts
are given in the column labelled "z". Peak g magnitudes and dates (all
2006) are estimates from early fits to the multi-band light curves. SN
Discov. R.A. (2000.0) Decl. Mag. z Estimated Peak Date Date Mag. 2006fq
Aug. 27 0 20 00.81 - 0 37 29.9 20.5 0.07 Aug. 10 19.6 2006fr Aug. 27
20 50 30.21 + 0 23 55.3 21.9 0.31 Aug. 29 21.8 2006fs Aug. 27 21 09
59.00 + 0 24 31.6 20.0 0.10 Aug. 15 19.7 2006ft Aug. 28 0 31 50.06 -
0 22 58.7 21.3 0.26 Sept. 1 21.3 2006fu Aug. 28 23 51 08.41 - 0 44 46.9
20.8 0.20 Sept. 6 20.4 2006fv Sept.11 1 21 37.88 + 0 24 52.2 20.4 0.13
Sept.16 20.0 2006fw Sept.11 1 47 10.34 - 0 08 49.2 20.4 0.08 Sept.28
19.1 2006fx Sept.11 22 46 16.15 + 0 24 57.2 21.6 0.22 Sept.12 21.6
2006fy Sept.11 23 26 40.19 - 0 50 24.9 19.8 0.08 Sept.15 19.5 2006fz
Sept.12 0 16 41.35 - 0 25 28.3 21.5 0.10 Sept.18? -- 2006ga Sept.12
0 52 56.33 + 0 26 52.3 21.2 0.24 -- -- 2006gb Sept.15 23 59 16.50 -
1 15 01.3 21.5 0.27 Sept.21 21.5
Title: Supernovae 2006fa and 2006fd-2006fn
Authors: Bassett, B.; Becker, A.; Brewington, H.; Choi, C.; Cinabro,
D.; Dejongh, F.; Dembicky, J.; Depoy, D. L.; Dilday, B.; Doi, M.;
Frieman, J.; Garnavich, P.; Harvanek, M.; Hogan, C.; Holtzman, J.;
Im, M.; Jha, S.; Konishi, K.; Krzesinski, J.; Lampeitl, H.; Kessler,
R.; Ketzeback, B.; Long, D.; Malanushenko, O.; Marriner, J.; McMillan,
R.; Miknaitis, G.; Morokuma, T.; Nichol, R.; Pan, K.; Prieto, J. L.;
Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Schneider, D.; Smith,
M.; Snedden, S.; Takanashi, N.; Tokita, K.; van der Heyden, K.;
Watters, S.; Yasuda, N.; Zheng, C.; Vaisanen, P.; Aragon-Salamanca,
A.; Bremer, M.; Turatto, M.; Goobar, A.; Sollerman, J.; Ruiz-Lapuente,
P.; Castander, F.; Romer, A.; Collins, C.; Lucey, J.; Edge, A.
Bibcode: 2006CBET..623....1B
Altcode:
Further to CBET 611, B. Bassett, South African Astronomical Observatory
(SAAO); A. Becker, University of Washington (UW); H. Brewington, Apache
Point Observatory (APO); C. Choi, Seoul National University (SNU);
D. Cinabro, Wayne State University, F. DeJongh, Fermilab; J. Dembicky,
APO; D. L. DePoy, Ohio State University (OSU); B. Dilday, University of
Chicago (UC); M. Doi, University of Tokyo (UT); J. Frieman, Fermilab
and UC; P. Garnavich, University of Notre Dame; M. Harvanek, APO;
C. Hogan, UW; J. Holtzman, New Mexico State University; M. Im, SNU;
S. Jha, Stanford University (SU); K. Konishi, UT; J. Krzesinski, APO;
H. Lampeitl, Space Telescope Science Institute (STScI); R. Kessler,
UC; B. Ketzeback, D. Long, O. Malanushenko, and V. Malanushenko,
APO; J. Marriner, Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab;
T. Morokuma, UT; R. Nichol, University of Portsmouth (UP); K. Pan, APO;
J. L. Prieto, OSU; M. Richmond, Rochester Institute of Technology;
A. Riess, STScI; R. Romani, SU; M. Sako, University of Pennsylvania;
D. Schneider, Pennsylvania State University; M. Smith, UP; S. Snedden,
APO; N. Takanashi and K. Tokita, UT; K. van der Heyden, SAAO;
S. Watters, APO; N. Yasuda, UT; and C. Zheng, SU, on behalf of the
Sloan Digital Sky Survey II collaboration, report the discovery of
eleven supernovae on multiple g, r, and i images taken with the SDSS
2.5-m telescope at Apache Point Observatory by the SDSS observing
team. B. Bassett, K. van der Heyden, and P. Vaisanen, SAAO, report
that a spectrum of 2006ff taken with the South African Large Telescope
on Sept. 15 UT shows it to be a type-Ia event. A. Aragon-Salamanca,
University of Nottingham; M. Bremer, University of Bristol; M. Turatto,
University of Padova; A. Goobar, University of Stockholm; J. Sollerman,
University of Copenhagen; P. Ruiz-Lapuente and F. Castander, University
of Barcelona; A. Romer, University of Sussex; C. Collins, Liverpool
John Moores University; and J. Lucey and A. Edge, University of Durham,
report that spectroscopy obtained by R. Nichol and M. Smith on Sept. 15
and 16 with the European Southern Observatory 3.6-m New Technology
Telescope (NTT) shows eight of the other new supernovae to be type-Ia
events, while SN 2006fg is a type-II event, and the type of SN 2006fe
is not yet determined. N. Yasuda reports that three of the objects --
2006fk, 2006fm, and 2006fi -- were confirmed as type-Ia events on the
same nights as the NTT observations via the Subaru 8-m telescope. The
discovery magnitudes tabulated below are all g magnitudes, and the
2006 discovery dates are UT. Spectroscopic redshifts are given in
the column labelled z. Esimated peak g magnitudes and corresponding
dates (all 2006) are estimates from early fits to the multi-band light
curves. SN Discov. R.A. (2000.0) Decl. Mag. z Estimated Peak Date Date
Mag. 2006fd Aug. 27 20 37 53.25 +01 13 16.1 19.4 0.08 Aug. 17 19.0
2006fe Aug. 27 20 52 09.16 -00 30 40.0 21.0 0.07 Sept. 1 20 2006ff
Aug. 28 00 26 35.64 -00 18 07.5 20.7 0.24 Aug. 26 20.7 2006fg Aug. 28
00 38 20.04 -00 17 41.9 19.1 0.03 Aug. 29 18.5 2006fh Aug. 28 01 49
34.91 -00 38 59.6 20.4 0.13 Aug. 20 19.8 2006fi Aug. 28 22 19 50.26 +00
01 27.8 22.1 0.23 Sept. 9 21.1 2006fj Sept.11 02 47 08.67 +00 46 30.5
20.3 0.19 Sept.12 20.3 2006fk Sept.11 22 01 01.33 +00 42 58.5 21.3 0.16
Sept.13 21.2 2006fl Sept.11 22 11 27.71 +00 45 21.5 20.3 0.17 Sept.10
20.3 2006fm Sept.15 22 10 10.26 +00 30 11.8 20.2 0.13 Sept.12 20.2
2006fn Sept.15 23 00 05.98 +00 32 15.6 20.6 0.18 Sept.12 20.6 Also,
an additional spectrum of SN 2006fa, listed as a possible type-Ia
event on CBET 621, was taken by R. Nichol and M. Smith with the NTT,
confirming it as a type-Ia supernova with a redshift of 0.16.
Title: Supernova 2006fo
Authors: Bassett, B.; Becker, A.; Brewington, H.; Choi, C.; Cinabro,
D.; Dejongh, F.; Dembicky, J.; Depoy, D. L.; Dilday, B.; Doi, M.;
Frieman, J.; Garnavich, P.; Harvanek, M.; Hogan, C.; Holtzman, J.;
Im, M.; Jha, S.; Konishi, K.; Krzesinski, J.; Lampeitl, H.; Kessler,
R.; Ketzeback, B.; Long, D.; Malanushenko, O.; Marriner, J.; McMillan,
R.; Miknaitis, G.; Morokuma, T.; Nichol, R.; Pan, K.; Prieto, J. L.;
Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Schneider, D.; Smith,
M.; Snedden, S.; Takanashi, N.; Tokita, K.; van der Heyden, K.;
Watters, S.; Yasuda, N.; Zheng, C.
Bibcode: 2006CBET..624....1B
Altcode:
Further to CBETs 611, 621, and 623, B. Bassett, South African
Astronomical Observatory (SAAO); A. Becker, University of Washington
(UW); H. Brewington, Apache Point Observatory (APO); C. Choi, Seoul
National University (SNU); D. Cinabro, Wayne State University;
F. DeJongh, Fermilab; J. Dembicky, APO; D. L. DePoy, Ohio State
University (OSU); B. Dilday, University of Chicago (UC); M. Doi,
University of Tokyo (UoT); J. Frieman, Fermilab and UC; P. Garnavich,
University of Notre Dame; M. Harvanek, APO; C. Hogan, UW; J. Holtzman,
New Mexico State University; M. Im, SNU; S. Jha, Stanford University
(SU); K. Konishi, UoT; J. Krzesinski, APO; H. Lampeitl, Space
Telescope Science Institute (STScI); R. Kessler, UC; B. Ketzeback,
D. Long, O. Malanushenko, and V. Malanushenko, APO; J. Marriner,
Fermilab; R. McMillan, APO; G. Miknaitis, Fermilab; T. Morokuma, UoT;
R. Nichol, University of Portsmouth (UP); K. Pan, APO; J. L. Prieto,
OSU; M. Richmond, Rochester Institute of Technology; A. Riess, STScI;
R. Romani, SU; M. Sako, University of Pennsylvania; D. Schneider,
Pennsylvania State University; M. Smith, UP; S. Snedden, APO;
N. Takanashi and K. Tokita, UoT; K. van der Heyden, SAAO; S. Watters,
APO; N. Yasuda, UoT; and C. Zheng, SU, on behalf of the Sloan Digital
Sky Survey II collaboration, report the discovery of a new supernova
(at g magnitude approximately 18.2) on g, r, and i images taken with the
SDSS 2.5-m telescope at Apache Point Observatory by the SDSS observing
team on Sept. 16 UT. The new object is located at R.A. = 2h32m38s.89,
Decl. = +0o37'03".0 (equinox 2000.0). Nothing was present at this
location on a co-added template from images acquired over the years
2000-2004 (limiting mag g > 20). A confirming image and spectroscopy
of 2006fo was obtained by R. Nichol and M. Smith on Sept. 17 with
the European Southern Observatory 3.6-m New Technology Telescope;
the spectrum shows the characteristic Si II feature consistent with a
type-Ia supernova approximately 1 week after maximum light, although
2006fo appears to be very underluminous for a type-Ia supernova at that
epoch. The nearby host spiral galaxy, with centroid position R.A. =
2h32m39s.29, Decl. = +0o37'02".4, has a prior SDSS spectrum indicating
a redshift of 0.02.
Title: Sunspot Magnetic Fields Measured up to 6000 Gauss
Authors: Livingston, W.; Harvey, J.; Malanushenko, O.; Webster, L.
Bibcode: 2006IAUJD...3E..54L
Altcode:
Photoelectric `magnetographs' underestimate field strength in sunspot
umbrae because of scattered light. Two techniques that do work are
photographic spectra or visual observations where the Zeeman sigma
components are matched by the observer with the Hale-Nicholson tipping
plate and the plate angle is converted to gauss. We study field measures
of 32000 spots, 1917 to 2004, from the archives of Mt. Wilson, Potsdam,
Rome, and the Crimea. We find 58 spot groups with fields of 4000
G or more. A careful look at the time history of equipment used at
Mt. Wilson reveals that the non-linearity of the glass plate at large
tilt angles was not taken properly into account, perhaps because of
their rarity. When we correct the Mt. Wilson values for strong fields
we find several cases of 5000 G and one of 6100 G. Often such strong
fields are associated with light bridges, but not always.
Title: High Spectral Resolution Study of the He 10830 Spectral Region
Authors: Malanushenko, O.; Livingston, W.; Jones, H.; Malanushenko,
V. P.
Bibcode: 2005ASPC..346..389M
Altcode:
The He 1083 nm line, formed in the upper chromosphere, is used for
observations of coronal holes (CHs) near their origins at the solar
surface. The weak He profiles in CHs show some peculiarities such
as asymmetry, broadening, and different ratios between spectral
components. These effects are small and the influence of disturbing
noise and approximations in reductions may be crucial for their
definition. In the present work we used low noise and high spectral
resolution observations carried out at the Kitt Peak McMath-Pierce
telescope to establish the key characteristics of He profile. The
shape of He profile is affected by telluric water line and we suggest
a method for its correction. Also there are solar lines that lie
between the main and second He components and overlap with both. If
the He line is weak and blue shifted, as in a CH and in cell centers,
the blends distort the visual shape of the main component and obscure
the second component. As an example we analyze two integral spectra
of CH and quiet Sun and confirm the broadening and minor blue shift of
the He line in a CH. This result must be considered to be preliminary
and the work is in progress.
Title: Supernovae 2005mh-2005mq
Authors: Barentine, J.; Bassett, B.; Becker, A.; Brewington, H.;
Dejongh, F.; Dembicky, J.; Depoy, D. L.; Dilday, B.; Doi, M.; Elson,
E.; Frieman, J.; Garnavich, P.; Harvanek, M.; Gueth, T.; Holtzman, J.;
Konishi, K.; Krzesinski, J.; Lampeitl, H.; Kessler, R.; Ketzeback, B.;
Long, D.; Malanushenko, O.; Marriner, J.; Marshall, J. L.; McMillan,
R.; Miknaitis, G.; Morokuma, T.; Nichol, R.; Pan, K.; Prieto, J. L.;
Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Schneider, D.; Smith,
M.; Snedden, S.; Subbarao, M.; Takanashi, N.; Tokita, K.; van der
Heyden, K.; Yasuda, N.
Bibcode: 2005CBET..339....1B
Altcode:
Further to CBET 315, J. Barentine, Apache Point Observatory (APO);
B. Bassett, University of Portsmouth (UP); A. Becker, University of
Washington; H. Brewington, APO; F. DeJongh, Fermilab; J. Dembicky,
APO; D. L. DePoy, Ohio State University (OSU); B. Dilday, University
of Chicago (UC); M. Doi, University of Tokyo; E. Elson, South
African Astronomical Observatory (SAAO); J. Frieman, Fermilab
and UC; P. Garnavich, University of Notre Dame; M. Harvanek, APO;
T. Gueth and J. Holtzman, New Mexico State University; K. Konishi,
University of Tokyo; J. Krzesinski, APO; H. Lampeitl, Space Telescope
Science Institute (STScI); R. Kessler, UC; B. Ketzeback, D. Long,
O. Malanushenko, and V. Malanushenko, APO; J. Marriner, Fermilab;
J. L. Marshall, OSU; R. McMillan, APO; G. Miknaitis, Fermilab;
T. Morokuma, University of Tokyo; R. Nichol, UP; K. Pan, APO;
J. L. Prieto, OSU; M. Richmond, Rochester Institute of Technology;
A. Riess, STScI; R. Romani and M. Sako, Stanford University;
D. Schneider, Pennsylvania State University; M. Smith, UP; S. Snedden,
APO; M. Subbarao, UC and Adler Planetarium; N. Takanashi and K. Tokita,
University of Tokyo; K. van der Heyden, SAAO; and N. Yasuda, University
of Tokyo, on behalf of the Sloan Digital Sky Survey II collaboration,
report the discovery of ten supernovae on multiple g, r, and i images
taken with the SDSS 2.5-m telescope at Apache Point Observatory by the
SDSS observing team. Spectroscopy was obtained with the Hobby-Eberly
Telescope and the ARC 3.5-m telescope, showing six of the new supernovae
to be type-Ia events, one to be a probable type-Ia event (2005mh), one
to be a type-II event (2005mk), one to be a probable type-IIn event
(2005mj), and one to be a type-Ib supernova (2005mn). The discovery
magnitudes tabulated below are all g magnitudes. Spectroscopic redshifts
are given in the column labelled z. Peak g magnitudes and dates (all
2005) are estimated from fits to the multi-band light curves.
Title: Supernovae 2005lb-2005lq
Authors: Barentine, J.; Bassett, B.; Becker, A.; Brewington, H.;
Dejongh, F.; Dembicky, J.; Depoy, D. L.; Dilday, B.; Doi, M.; Elson,
E.; Frieman, J.; Garnavich, P.; Harvanek, M.; Gueth, T.; Holtzman, J.;
Konishi, K.; Krzesinski, J.; Lampeitl, H.; Kessler, R.; Ketzeback, B.;
Long, D.; Malanushenko, O.; Marriner, J.; Marshall, J. L.; McMillan,
R.; Miknaitis, G.; Morokuma, T.; Nichol, R.; Pan, K.; Prieto, J. L.;
Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Schneider, D.; Smith,
M.; Snedden, S.; Subbarao, M.; Takanashi, N.; Tokita, K.; van der
Heyden, K.; Yasuda, N.
Bibcode: 2005CBET..315....1B
Altcode:
Further to CBET 254 and 304, J. Barentine, Apache Point Observatory
(APO); B. Bassett, University of Portsmouth (UP); A. Becker,
University of Washington; H. Brewington, APO; F. DeJongh, Fermilab;
J. Dembicky, APO; D. L. DePoy, Ohio State University (OSU); B. Dilday,
University of Chicago (UC); M. Doi, University of Tokyo; E. Elson,
South African Astronomical Observatory (SAAO); J. Frieman, Fermilab
and UC; P. Garnavich, University of Notre Dame; M. Harvanek, APO;
T. Gueth and J. Holtzman, New Mexico State University; K. Konishi,
University of Tokyo; J. Krzesinski, APO; H. Lampeitl, Space Telescope
Science Institute (STScI); R. Kessler, UC; B. Ketzeback, D. Long,
O. Malanushenko, and V. Malanushenko, APO; J. Marriner, Fermilab;
J. L. Marshall, OSU; R. McMillan, APO; G. Miknaitis, Fermilab;
T. Morokuma, University of Tokyo; R. Nichol, UP; K. Pan, APO;
J. L. Prieto, OSU; M. Richmond, Rochester Institute of Technology;
A. Riess, STScI; R. Romani and M. Sako, Stanford University;
D. Schneider, Pennsylvania State University; M. Smith, UP; S. Snedden,
APO; M. Subbarao, UC and Adler Planetarium; N. Takanashi and K. Tokita,
University of Tokyo; K. van der Heyden, SAAO; and N. Yasuda,
University of Tokyo, on behalf of the Sloan Digital Sky Survey
(SDSS) II collaboration, report the discovery of sixteen supernovae
on multiple g, r, and i images taken with the SDSS 2.5-m telescope
at APO by the SDSS observing team. Spectroscopy was obtained with
the Hobby-Eberly Telescope, the Subaru telescope, and the ARC 3.5-m
telescope, showing thirteen to be type-Ia events, two to be type-II
events (2005lb and 2005lc), and one to be a probable type-II supernova
(2005lm). The discovery magnitudes tabulated below are all g magnitudes
unless followed by an asterisk, in which case it is an r magnitude
due to non-detection in g. Spectroscopic redshifts are given in the
column labelled z, but entries with only one significant figure are
photometric redshift estimates based on the supernova light curves and
colors. Peak g magnitudes and dates (all 2005) are estimated from fits
to the multi-band light curves. SN Discov. R.A. (2000.0) Decl. Mag. z
Estimated Peak Date Date Mag. 2005lb Sep. 10 22 54 50.05 - 0 15 09.0
18.0 0.03 Sep. 6 17.4 2005lc Sep. 10 3 02 11.18 - 1 09 59.4 18.8 0.01
Aug. 20 17.6 2005ld Nov. 2 21 40 00.48 - 0 00 28.5 22.1 0.1 Nov. 17 19.9
2005le Nov. 2 22 31 32.29 - 0 29 36.8 22.3 0.25 Nov. 12 21.6 2005lf
Nov. 3 23 18 42.09 - 1 12 17.5 22.4 0.30 Nov. 10 21.9 2005lg Nov. 3 1
16 20.07 - 0 48 28.1 23.0 0.35 Nov. 10 22.2 2005lh Nov. 4 21 55 48.34 +
1 10 50.9 22.1 0.22 Nov. 13 21.3 2005li Nov. 4 22 23 15.45 + 0 15 10.9
22.6 0.26 Nov. 14 21.6 2005lj Nov. 7 1 57 43.03 - 0 10 46.0 22.5 0.08
Nov. 18 20.1 2005lk Nov. 8 21 59 49.43 - 1 11 37.3 21.7 0.1 Nov. 22
19.4 2005ll Nov. 8 22 28 06.87 - 1 07 41.4 22.5* 0.24 Nov. 20 21.0
2005lm Nov. 10 0 15 04.91 + 0 21 18.5 21.0 0.08 Nov. 19 20.2 2005ln
Nov. 20 0 27 00.12 - 0 35 11.8 20.4 0.14 Nov. 25 20.1 2005lo Nov. 24
0 37 11.86 - 1 12 12.3 21.9 0.30 Nov. 28 21.7 2005lp Nov. 24 1 47
42.80 + 0 12 26.0 22.2 0.30 Nov. 15 22.1 2005lq Nov. 24 2 41 36.04 +
0 12 18.1 22.7 0.37 Dec. 1 22.3
Title: Supernovae 2005kn-2005ku
Authors: Barentine, J.; Bassett, B.; Becker, A.; Brewington, H.;
Dejongh, F.; Dembicky, J.; Depoy, D. L.; Dilday, B.; Doi, M.; Elson,
E.; Frieman, J.; Garnavich, P.; Harvanek, M.; Gueth, T.; Holtzman, J.;
Konishi, K.; Krzesinski, J.; Lampeitl, H.; Kessler, R.; Ketzeback, B.;
Long, D.; Malanushenko, O.; Marriner, J.; Marshall, J. L.; McMillan,
R.; Miknaitis, G.; Morokuma, T.; Nichol, R.; Pan, K.; Prieto, J. L.;
Richmond, M.; Riess, A.; Romani, R.; Sako, M.; Schneider, D.; Smith,
M.; Snedden, S.; Subbarao, M.; Takanashi, N.; Tokita, K.; van der
Heyden, K.; Yasuda, N.
Bibcode: 2005CBET..304....1B
Altcode: 2005CBET..304A...1B
Further to CBET 254 and 281, J. Barentine, Apache Point Observatory
(APO); B. Bassett, University of Portsmouth (UP); A. Becker,
University of Washington; H. Brewington, APO; F. DeJongh, Fermilab;
J. Dembicky, APO; D. L. DePoy, Ohio State University (OSU); B. Dilday,
University of Chicago (UC); M. Doi, University of Tokyo; E. Elson,
South African Astronomical Observatory (SAAO); J. Frieman, Fermilab and
UC; P. Garnavich, University of Notre Dame; M. Harvanek, APO; T. Gueth
and J. Holtzman, New Mexico State University; K. Konishi, University
of Tokyo; J. Krzesinski, APO; H. Lampeitl, Fermilab; R. Kessler,
UC; B. Ketzeback, D. Long, O. Malanushenko, and V. Malanushenko,
APO; J. Marriner, Fermilab; J. L. Marshall, OSU; R. McMillan, APO;
G. Miknaitis, Fermilab; T. Morokuma, University of Tokyo; R. Nichol,
UP; K. Pan, APO; J. L. Prieto, OSU; M. Richmond, Rochester Institute
of Technology; A. Riess, Space Telescope Science Institute; R. Romani
and M. Sako, Stanford University; D. Schneider, Pennsylvania State
University; M. Smith, UP; S. Snedden, APO; M. Subbarao, UC and Adler
Planetarium; N. Takanashi and K. Tokita, University of Tokyo; K. van
der Heyden, SAAO; and N. Yasuda, University of Tokyo, on behalf of the
Sloan Digital Sky Survey II collaboration, report the discovery of
eight supernovae on multiple g, r, and i images taken with the SDSS
2.5-m telescope at Apache Point Observatory by the SDSS observing
team. Spectroscopy was obtained with the Hobby-Eberly Telescope, the
William Herschel Telescope, the ARC 3.5-m telescope, and the MDM 2.4-m
telescope, showing five of the new supernovae to be type-Ia events, two
to be of type Ib/c (2005kr and 2005ks, showing broad lines similar to
1998bw), and one to be a probable type-Ia event (2005kn). The discovery
magnitudes tabulated below are all g magnitudes. Spectroscopic redshifts
are given in the column labelled z. Peak g magnitudes and dates
(all 2005) are estimated from fits to the multi-band light curves. SN
Discov. R.A. (2000.0) Decl. Mag. z Estimated Peak Date Date Mag. 2005kn
Oct. 24 21 15 32.45 - 0 21 19.2 22.1 0.19 Oct. 30 21.4 2005ko Oct. 28 23
50 05.02 - 0 55 17.0 22.6 0.19 Nov. 8 21.1 2005kp Nov. 1 0 30 53.16 -
0 43 07.8 21.8 0.11 Nov. 16 19.3 2005kq Nov. 2 23 11 20.91 - 0 36 31.1
22.8 0.39 Nov. 9 21.9 2005kr Nov. 3 3 08 29.66 + 0 53 20.2 22.1 0.13
Nov. 13 20.5 2005ks Nov. 4 21 37 56.56 - 0 01 56.9 22.5 0.10 Nov. 13
21.1 2005kt Nov. 7 1 10 58.05 + 0 16 34.1 20.5 0.07 Nov. 20 18.2 2005ku
Nov. 10 22 59 42.61 - 0 00 49.3 20.7 0.05 Nov. 26 17.5
Title: Supernova 2005kb
Authors: Barentine, J.; Bassett, B.; Becker, A.; Brewington, H.;
Dejongh, F.; Dembicky, J.; Depoy, D. L.; Dilday, B.; Doi, M.; Elson,
E.; Frieman, J.; Garnavich, P.; Harvanek, M.; Gueth, T.; Holtzman, J.;
Krzesinski, J.; Lampeitl, H.; Kessler, R.; Ketzeback, B.; Konishi, K.;
Long, D.; Malanushenko, O.; Marriner, J.; Marshall, J. L.; McMillan,
R.; Miknaitis, G.; Nichol, R.; Pan, K.; Prieto, J. L.; Richmond, M.;
Riess, A.; Romani, R.; Sako, M.; Schneider, D.; Smith, M.; Snedden,
S.; Subbarao, M.; Takanashi, N.; van der Heyden, K.; Yasuda, N.
Bibcode: 2005CBET..281....1B
Altcode:
Further to CBETs 272, 277, and 280, J. Barentine, Apache Point
Observatory (APO); B. Bassett, University of Portsmouth (UP);
A. Becker, University of Washington; H. Brewington, APO; F. DeJongh,
Fermilab (FNAL); J. Dembicky, APO; D. L. DePoy, Ohio State University
(OSU); B. Dilday, University of Chicago (UC); M. Doi, University
of Tokyo (Tokyo); E. Elson, South African Astronomical Observatory
(SAAO); J. Frieman, FNAL and UC; P. Garnavich, University of Notre
Dame; M. Harvanek, APO; T. Gueth and J. Holtzman, New Mexico State
University; J. Krzesinski, APO; H. Lampeitl, FNAL; R. Kessler, UC;
B. Ketzeback, APO; K. Konishi, Tokyo; D. Long, O. Malanushenko,
AND V. Malanushenko, APO; J. Marriner, FNAL; J. L. Marshall, OSU;
R. McMillan, APO; G. Miknaitis, FNAL; R. Nichol, UP; K. Pan, APO;
J. L. Prieto, OSU; M. Richmond, Rochester Institute of Technology;
A. Riess, Space Telescope Science Institute; R. Romani and M. Sako,
Stanford University; D. Schneider, Pennsylvania State University;
M. Smith, UP; S. Snedden, APO; M. Subbarao, UC and Adler Planetarium;
N. Takanashi, Tokyo; K. van der Heyden, SAAO; and N. Yasuda, Tokyo,
on behalf of the Sloan Digital Sky Survey II collaboration, report
the discovery of a type-II supernova on g, r, and i images taken with
the SDSS 2.5-m telescope at Apache Point Observatory on the night of
Nov. 5 with magnitudes g = 18.1, r = 18.3, i = 18.5. In a second image
taken on Nov. 7, the new object had magnitudes g = 18.0, r = 18.0, i =
18.3. SN 2005kb is located at R.A. = 0h50m50s.68, Decl. = +0o51'13".0
(equinox 2000.0), which is approximately 13".7 west and 8".4 north of
the center of a galaxy that has a prior spectrum from the SDSS showing
it to be at redshift z = 0.0153. A spectrum taken on Nov. 8 with the
ARC 3.5-m telescope (+ DIS) shows SN 2005kb to be of type II.
Title: Reduction of SOLIS/Vector Spectromagnetograph He I 1083
nm Observations
Authors: Jones, H. P.; Malanushenko, O. V.; Harvey, J. W.; Henney,
C. J.; Keller, C. U.
Bibcode: 2005AGUSMSP51A..02J
Altcode:
The SOLIS/Vector Spectromagnetograph (VSM) now continues the
three-decade record of full-disk He I 1083 nm spectroheliograms from
NSO/Kitt Peak (see poster by Henney et al.). Although the sensitivity
of the VSM interim cameras at 1083 nm is far greater than that of
previous NSO/KP instruments, the observations are compromised by
strong interference fringes produced within the detectors. We discuss
in some detail the extent to which this difficulty is overcome
in the simple algorithm used to produce the synoptic observations
and explore methods for removing remaining fringe effects for true
imaging spectroscopy. These techniques include Fourier and Wavelet
filtering, the flat-fielding algorithm used for earlier NASA/NSO
Spectromagnetograph (SPM) observations, and physical modeling of the
detector fringe pattern.
Title: The He I 1083 nm line in Coronal Holes, a study with high
spectral resolution.
Authors: Malanushenko, O.; Jones, H. P.; Livingston, W.; Malanushenko,
V. P.
Bibcode: 2005AGUSMSP51B..08M
Altcode:
The He 1083 nm line (He), formed in the upper chromosphere, is used
for observations of coronal holes (CH) near their origins at the solar
surface. Weak He 1083 nm profiles in CHs show some peculiarities
such as asymmetry, broadening, and a different ratio between the
spectral components. These effects are small so that the influence
of disturbing noise and approximations in reduction processes are
important for the results. In this research we have used low noise
and high spectral resolution observations carried out at the Kitt Peak
McMath-Pierce telescope to establish the key characteristics of the He
profile in CHs. For accurate reduction we corrected the He profile for
spectral blending from water vapor and weak solar lines. We confirm
our previous result, based on imaging-spectroscopy data from the Kitt
Peak Vacuum Telescope, regarding broadening of the He line in CHs and
explain previous instability of CH contrast in our procedure for CH
recognition as an influence of hidden photospheric lines.
Title: Differentiating Coronal Holes from the Quiet Sun by He 1083
nm Imaging Spectroscopy
Authors: Malanushenko, O. V.; Jones, H. P.
Bibcode: 2005SoPh..226....3M
Altcode:
The locations of coronal holes are usually based on equivalent-width
images in the He I 1083 nm line. However, it is difficult to
differentiate coronal holes from the centers of quiet chromospheric
network without complementary data and the skill of an experienced
observer. Analysis of imaging spectroscopy shows that line half-width
and central intensity are correlated differently in coronal holes
and a quiet Sun. This fact can be used to form linear combinations
of these images in which coronal holes are better separated from the
quiet Sun. Coronal hole borders agree well with SOHO/EIT data but can
show significant differences from National Solar Observatory maps.
Title: Analysis of He I 1083 nm Imaging Spectroscopy Using a Spectral
Standard
Authors: Malanushenko, O. V.; Jones, H. P.
Bibcode: 2004SoPh..222...43M
Altcode:
We develop a technique for the analysis of He i 1083 nm spectra which
addresses several difficulties through determination of a continuum
background by comparison with a well-calibrated standard and through
removal of nearby solar and telluric blends by differential comparison
to an average spectrum. The method is compared with earlier analysis
of imaging spectroscopy obtained at the National Solar Observatory/Kitt
Peak Vacuum Telescope (NSO/KPVT) with the NASA/NSO Spectromagnetograph
(SPM). We examine distributions of Doppler velocity and line width as
a function of central intensity for an active region, filament, quiet
Sun, and coronal hole. For our example, we find that line widths and
central intensity are oppositely correlated in a coronal hole and quiet
Sun. Line widths are comparable to the quiet Sun in the active region,
are systematically lower in the filament, and extend to higher values
in the coronal hole. Outward velocities of ≈ 2-4 km s−1
are typically observed in the coronal hole. The sensitivity of these
results to analysis technique is discussed.
Title: Differentiating Coronal Holes from the Quiet Sun by He 1083
nm imaging spectroscopy.
Authors: Malanushenko, O. V.; Jones, H. P.
Bibcode: 2004AAS...204.7105M
Altcode: 2004BAAS...36R.797M
We applied our new analysis technique to several examples of He I 1083
nm imaging spectroscopy obtained with the NASA/NSO Spectromagnetograph
at the NSO/Kitt Peak Vacuum Telescope. We studied correlations of
intensity vs width and Doppler velocity in several coronal holes and
areas of chromospheric network in the quiet Sun. We confirm our previous
result, which was based on a single example, that the correlation of
line width and central intensity is opposite in coronal holes and quiet
Sun. Suitably normalized linear combinations of width and intensity
can be used to distinguish between quiet Sun and coronal holes.
Title: Measurement Scale of the SOLIS Vector Spectromagnetograph
Authors: Jones, H. P.; Harvey, J. W.; Henney, C. J.; Keller, C. U.;
Malanushenko, O. M.
Bibcode: 2004AAS...204.3703J
Altcode: 2004BAAS...36Q.709J
Longitudinal magnetograms obtained with the SOLIS Vector
Spectromagnetograph (VSM) during a cross-calibration period are
compared with similar data from the NASA/NSO Spectromagnetograph (SPM)
at the NSO/Kitt Peak Vacuum Telescope as well as with SOHO/MDI and GONG
magnetograms. The VSM began observations at the University of Arizona
agricultural test site and collaborative observations were obtained
with both the VSM and SPM from 2003 Aug 05 through 2003 Sep 21 when
the SPM was officially retired. The VSM replaces the SPM and continues
the 30-year NSO/Kitt Peak synoptic magnetogram record. Magnetograms
are compared by equating histograms and, for selected examples, by
pixel-by-pixel comparison of coregistered images. The VSM was not
corrected for polarization crosstalk and was operated without fast
guiding. Solar activity was at best moderate during this period. Over
the range of observed fields, the VSM magnetograms show greatly
improved sensitivity but are otherwise virtually identical with "raw"
SPM magnetograms. GONG magnetograms are also closely comparable with
the SPM while MDI flux values tend to be stronger by a factor of 1.2 -
1.4. Dependence of the results on seeing will be discussed. Partial
funding for this work was provided through Solar and Heliospheric
Research Supporting Research and Technology grants from NASA's Office
of Space Sciences.
Title: Imaging the Chromosphere using Photospheric Mn 539.4 nm
Authors: Malanushenko, Olena; Jones, H. P.; Livingston, W.
Bibcode: 2004IAUS..223..645M
Altcode: 2005IAUS..223..645M
Archival full disk observations of the central depth of Mn 539.467,
a photospheric line, have been found to correlate with chromospheric
Ca K intensity. In this paper we present spectroheliograms taken in
Mn I 539.467 and 542.32 nm lines and other nearby lines to see if the
other photospheric lines show chromospheric structures. We see both
Mn images and also Si I 542.118 mimic magnetograms the similar way,
while strong Fe and Ti lines only faintly reveal magnetic features,
and weak Fe lines of comparable strength to Mn show nothing.
Title: A New Way to Identify Coronal Holes.
Authors: Malanushenko, O.; Jones, H. P.
Bibcode: 2003SPD....34.0419M
Altcode: 2003BAAS...35R.813M
The location of a coronal hole (CH) in the upper chromosphere is usually
based on equivalent width (EqW) images in the He 1083 nm line. A CH
is seen on these images as bright areas, which represents low values
of EqW. But sometimes it is difficult to differentiate a CH from the
bright centers of chromospheric network, or filament channels, without
complementary data and the skill of an experienced of observer. To
remove the above ambiguity we apply a new spectral analysis technique
for the He I 1083 nm line to imaging spectroscopy of several CHs
obtained with the NASA/NSO spectromagnetograph (Malanushenko and Jones,
2002, BAAS 33, 700). Reduction includes making dark and flat-field
corrections; normalization to a non-linear continuum on the basis of
a comparison to a spectral standard; a differential method for the
de-blending of spectra; and multi-profile fitting to define the He line
components. We fit a Gaussian profile to the main component of the
He line and deduce the parameters of central intensity (I) and half
width at half maximum (HW). On the HW-images, CHs are distinguished
from the surrounding regions as bright areas; similarly, they are
also seen as bright on the I-images. Chromospheric network is seen on
W-images as opposite in contrast to the I-images, and this distinction
is the basis for our CH identification method. We normalize the I- and
HW-images by subtracting their respective quiet-sun means and dividing
by the corresponding standard deviations. The sum of the normalized I-
and HW-images shows increasing contrast of the CH and a depression of
contrast in the network and can be used as an independent CH diagnostic.
Title: A New Fitting Procedure for the Blended He I 1083 nm Multiplet
Authors: Jones, H. P.; Malanushenko, O. V.
Bibcode: 2003SPD....34.1712J
Altcode: 2003BAAS...35..839J
The He I 1083 nm multiplet is a powerful tool for observing the outer
solar atmosphere but is difficult to analyze because the lines are
weak, highly variable, and spectrally blended, both internally and
with other neighboring solar and telluric lines. After separation from
nearby spectral features (see accompanying poster by Malanushenko and
Jones), two components of the He I multiplet are resolved. Fitting these
lines with two unconstrained Gaussian profiles always gives a ratio
of major to minor component of less than half the value which would
be expected for optically thin lines. One possibility for explaining
the discrepancy between the weakness of the lines and the ratio of
the spectral components is to assume that the line formation regions
are concentrated in laterally unresolved, optically thick structures
with small filling factor. However, we present here a least-squares
fitting technique using cubic splines with fixed breakpoints with
the constraint that the blend is the sum of three identically shaped
profiles shifted in wavelength according to the atomic structure of
the blend and weighted by the corresponding statistical weights, in
agreement with optically thin line formation. The basis functions
for the fitting procedure have no built-in spectral symmetry or
shape. The resulting underlying profiles tend to be asymmetric with
excess absorption to the blue, consistent with formation by "hot" and
"cool" spatial elements within the observed volume, with the hotter
regions having differential motion toward the observer. The results
agree well with NASA/NSO Spectromagnetograph observations in quiet
sun and coronal holes. Partial funding of this research was provided
through the NASA Sun-Earth Connection SR&T program.
Title: New Analysis of He I 1083 nm Imaging Spectroscopy
Authors: Malanushenko, O. V.; Jones, H. P.
Bibcode: 2002AAS...200.3812M
Altcode: 2002BAAS...34..700M
We apply our new analysis method (Jones, H.P., Malanushenko, E.V,
American Geophysical Union, Spring Meeting 2001, abstract #SH31A-01),
which uses a spectral standard to determine the continuum and
least-squares fitting of all relevant spectral features to removed
effects of nearby solar and telluric lines, to imaging spectroscopy
in the He I 1083 nm line of coronal holes and quiet sun obtained with
the NASA/NSO spectromagnetograph. We find that in coronal holes the
central line depth is slightly lower compared to cell centers in nearby
quiet network, that the full-width-half maxima (FWHM)of coronal hole
profiles is significantly (approximately 35%) higher than in quiet cell
centers, and that the coronal hole line-of-sight velocities show a blue
shift of 3-4 km/s. Preferential asymmetry with excess blue absorption
is clearly evident in the processed profiles. We note that the blue
shift of line center is not seen using earlier analysis techniques and
explore the reasons for this difference. We suggest that FWHM may be
a better coronal hole diagnostic than the lower contrast equivalent
width which is currently used. Partial support of this research was
provided by NASA Supporting Research and Technology grants under the
Sun-Earth Connection program.