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Author name code: severny
ADS astronomy entries on 2022-09-14
author:"Severny, A.B."
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Title: Observations of Solar Global Oscillations 1983-1985 and
Potential Influence of Terrestrial Sources of Errors
Authors: Severny, A. B.; Kotov, V. A.; Tsap, T. T.
1988IAUS..123...33S Altcode:
The Earth atmospheric pressure fluctuations in the 5-min range of
periods are analysed and their influence on observations of solar
5-min oscillations are briefly discussed. New series of observations
confirmed the oscillations of the Sun with period of 160.010 min.
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Title: On the Ultraviolet Background Radiation of the Galaxy
Authors: Zvereva, A.; Severny, A.; Granitsky, L.; Courtes, G.;
Cruvellier, P.; Hua, C. T.
1985IAUS..106..237Z Altcode:
Observations of the far-UV spectrum (1300 - 1800 Å) of the sky
background at different galactic latitudes are presented. The
measurements were made with the photoelectric spectrometer
("Galaktika") on board the "Prognoz-6" satellite. The highly
elongated orbit of the satellite permitted corrections for scattered
L<SUB>&</SUB>alpha;-light. The contribution of stars was eliminated
using fluxes measured in the TD-I and OAO-2 experiments.
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Title: Photometric calibration and first results obtained with the
UFT experiment on board the astron satellite
Authors: Hua, C. T.; Courtes, G.; Cruvellier, P.; Huguenin, D.;
Severny, A. B.; Boyarchuk, A.; Gershberg, R.; Petrov, P.; Pronik,
G.; Tovmassian, R.
1985AdSpR...5c.201H Altcode: 1985AdSpR...5..201H
The UV telescope of 30 cm diameter equipped with a three channel scanner
spectrometer aboard the highly eccentric orbit space station “ASTRON”
is described <P />Absolute calibration of the whole device is performed
using spectra of standard stars, of which absolute values were obtained
by TDI or IUE experiments. Several photometric controls have been
made on the stability of the equipment after one year of operation
which demonstrate reliability of some first results obtained by the
UFT. <P />The sensitivity curve of the spectrophotometric system has
been observed with a reproducibility of 2σ = 10% or better. <P />The
repeated observation of one star (139 Tau) indicates that the overall
performance exhibits the same quality after one year in orbit. The low
resolution mode (Δ λ = 28 Å) leads to a powerful new investigation
of faint extended sources.
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Title: Ten years observations of long-period oscillations of the Sun
Authors: Kotov, V. A.; Severny, A. B.; Tsap, T. T.
1984ESASP.220..189K Altcode: 1984ESPM....4..189K
The measurements of Doppler shift of a Fraunhofer spectral line were
performed over 10 yr. The power spectrum of the data shows a major peak
at 160m period which is interpreted as multiple resonance of gravity
modes of the Sun. This 160m oscillation reveals remarkable phase
stability during the entire decade. It is noted that true pattern
of the power spectrum can be seriously spoiled by Earth sources of
noise. The importance of analysis of oscillations seen in a telluric
line is emphasized.
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Title: On the Stability of Solar Gravity Mode Oscillations and the
Structure of the Sun
Authors: Kosovichev, A. G.; Severny, A. B.
1984LIACo..25..278K Altcode: 1984tpss.conf..278K; 1984trss.conf..278K
No abstract at ADS
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Title: On the Excitation of Oscillations of the Sun - Numerical Models
Authors: Kosovichev, A. G.; Severny, A. B.
1983SoPh...82..323K Altcode: 1983IAUCo..66..323K
Numerical solutions of the general time-dependent gas-dynamical
equations in linear adiabatic approximation are given for initial
conditions imitating: (a) a central perturbation, (b) a boundary
perturbation (in the convective envelope), and (c) a `shrinking' of
the Sun as a whole. For a variety of models of the Sun it is found
that at the surface the radial component v<SUB>r</SUB> of velocity is
much greater than the tangential component v<SUB>t</SUB>, and that the
period T of stationary oscillations does not exceed 131<SUP>m</SUP>. The
appearance at the surface of a g mode with period 160<SUP>m</SUP>
is found to be improbable.
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Title: A Possible Interpretation of the Ultraviolet Sky Back-Ground
Radiation Observed with the Space Experiment "Galaktika"
Authors: Severny, A. B.; Zvereva, A. M.
1983ApL....23...71S Altcode:
Measurements made in deep space of the intensity of ultraviolet sky
background radiation, in the range of latitudes -58 deg to +27 deg,
show a correlation between that intensity and enhanced soft X-ray
brightness, and also with deficient neutral hydrogen density. A
pronounced decrease in intensity from 1400 to 1800 A is apparent in
dark, higher latitude regions in Pisces, while a rapid increase in
intensity over that range is observed in low galactic latitudes. A
coincidence in position between radio spurs and several regions of
ultraviolet emission is also noted. A possible explanation of background
ultraviolet radiation in high-latitude areas as emission from the hot
gas of supernova remnants is discussed.
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Title: Gamma-Cygni - Magnetic Periodic Star
Authors: Plachinda, S. I.; Severny, A. B.; Dmitrienko, E. S.
1983mvs..conf..193P Altcode:
No abstract at ADS
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Title: Gamma CYG - Magnetic Periodic Star?
Authors: Plachinda, S. I.; Severny, A. B.; Dmitrenko, E. S.
1982CoKon..83..193P Altcode:
No abstract at ADS
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Title: Global Oscillations of the Sun
Authors: Severny, A. B.; Kotov, V. A.; Tsap, T. T.
1981IGAFS..56...11S Altcode:
No abstract at ADS
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Title: Shaking Down the Sun's Long-Period Vibes
Authors: Kotov, V. A.; Severny, A. B.; Tsap, T. T.; Scherrer, P. H.;
Wilcox, J. M.; Fossat, E.; Grec, G.; Pomerantz, M.
1980SciN..118..100K Altcode:
No abstract at ADS
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Title: Solar oscillations and the problem of the internal structure
of the sun
Authors: Severny, A. B.; Kotov, V. A.; Tsap, T. T.
1979AZh....56.1137S Altcode:
Observations of solar oscillations made over a period of five years
are reviewed, and implications of the observations for the physics
of the solar interior are indicated. An analysis of over 1000 hours
of solar observations from 1974 to 1978 is presented which shows the
observed oscillations of the solar radius to be real, with a period of
160.010 + or - 0.004 min and a Doppler shift amplitude of 1 m/sec. The
slow drift of the phase of the velocity maximum has been observed,
together with the dependence of the amplitude on the phase of the
solar rotation period. Synchronous oscillations of the solar magnetic
field and radio emission have also been found to be synchronous to
the brightness oscillations, and the oscillations have been seen to
disappear occasionally, possibly due to the passage of a supergranule
across the solar disk. It is suggested that the oscillations represent
gravitational quadrupole oscillations, and could serve as a means for
nonradiative heat transfer from within the sun and thus alleviate the
problem of low neutrino flux.
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Title: Soviet short-term forecasts of active region evolution and
flare activity
Authors: Severny, A. B.; Stepanyan, N. N.; Steshenko, N. V.
1979stp.....1...72S Altcode:
The structure and strength of the magnetic fields of the Sun's
active regions were studied to obtain information for short term
forecasting. Intensity forecasts were then made using the information
obtained on the gradients of the magnetic fields between sunspots
of opposite polarity. A comparison of flare forecasting methods is
presented.
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Title: Observations of solar oscillations with periods of 160 minutes
Authors: Scherrer, P. H.; Wilcox, J. M.; Kotov, V. A.; Severny, A. B.;
Tsap, T. T.
1979Natur.277..635S Altcode:
Severny et al. (1976) have reported oscillations of the sun with
a period near 160 min. A description is presented of observations
made at the Stanford Solar Observatory during the time from 1975 to
the present which seem to support the reports by Severny et al. At
Stanford the relative velocity between a central circular area of
radius 0.5 solar radius on the solar disk and most of the remaining
area of the solar disk is measured. A superposed epoch analysis of
the observations using a period of 160 min is discussed. An apparent
agreement in phase between the obtained observational data and those
reported by Severny et al. tends to support the interpretation that
solar oscillations are being observed.
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Title: Some Problems of the Nonstability of the Sun and the Stars
Authors: Severny, A. B.
1978ppeu.book..343S Altcode: 1978ppeu.book..351S; 1978ppeu.conf..343S
No abstract at ADS
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Title: Further Progress in Observations of Solar Oscillations
Authors: Severny, A. B.; Kotov, V. A.; Tsap, T. T.
1978pfsl.conf..123S Altcode: 1978ESPM....2..123S
No abstract at ADS
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Title: Orbiting solar telescope "Salyut-4" station.
Authors: Bruns, A. V.; Grechko, G. M.; Gubarev, A. A.; Gubarjev,
A. A.; Klimuk, P. I.; Sevast'yanov, V. I.; Sevastjanov, V. I.;
Severnyj, A. B.; Severny, A. B.; Steshenko, N. V.
1977AcAau...4.1121B Altcode:
The orbiting solar telescope on Salyut-4 (F = 2.5 m, d = 250 mm)
produces images of the sun on the entrance slit of a stigmatic
two-grating spectrograph (R<SUB>1</SUB> = 1 m, N<SUB>1</SUB> =
1200 lines/mm; R<SUB>2</SUB> = 0.5 m, N<SUB>2</SUB> = 2400 lines/mm,
dispersion 16 A/mm, spectral resolution 0.3 A). The automatic system
keeps the observed solar features on the slit of the spectrograph with
an accuracy of 3-4 arc sec. The far UV-spectra (970-1400 A) of solar
flares, brightenings, flocculi and prominences were photographed and
fresh coatings of mirrors were made during the flight.
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Title: How Flares Can Be Understood (Proceedings of the Meeting `How
Can Flares be Understood?', held during the 16th General Assembly
of the IAU in Grenoble, France, on 27 August, 1976.)
Authors: Severny, A. B.
1977SoPh...53..233S Altcode:
No abstract at ADS
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Title: Comments on Salyut-4 Observations of Active Regions on the Sun
(Proceedings of the Meeting `How Can Flares be Understood?', held
during the 16th General Assembly of the IAU in Grenoble, France,
on 27 August, 1976.)
Authors: Severny, A. B.
1977SoPh...53..285S Altcode:
No abstract at ADS
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Title: The mean magnetic field of the Sun: Method of observation
and relation to the interplanetary magnetic field
Authors: Scherrer, Philip H.; Wilcox, John M.; Kotov, Valeri; Severny,
A. B.; Howard, Robert
1977SoPh...52D...6S Altcode:
The mean solar magnetic field as measured in integrated light has
been observed since 1968. Since 1970 it has been observed both at
Hale Observatories and at the Crimean Astrophysical Observatory. The
observing procedures at both observatories and their implications for
mean field measurements are discussed. A comparison of the two sets
of daily observations shows that similar results are obtained at both
observatories. A comparison of the mean field with the interplanetary
magnetic polarity shows that the IMF sector structure has the same
pattern as the mean field polarity.
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Title: Observations of resonance-line polarization in the solar EUV.
Authors: Stenflo, J. O.; Dravins, D.; Öhman, Y.; Wihlborg, N.;
Bruns, A.; Prokof'ev, V. K.; Severnyj, A.; Severny, A.; Zhitnik,
I. A.; Biverot, H.; Stenmark, L.
1977ROLun..12..147S Altcode:
No abstract at ADS
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Title: Salyut 4 Observations of Active Regions on the Sun
Authors: Bruns, A. V.; Grechko, G. M.; Gubarev, A. A.; Klimuk, P. I.;
Sevastyanov, V. I.; Severny, A. B.; Steshenko, N. V.
1977ebhs.coll..333B Altcode: 1977IAUCo..36..333B
No abstract at ADS
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Title: Observations of Oscillations of the Entire Sun
Authors: Kotov, V. A.; Severny, A.; Tsap, T.
1976IAUTB..16..244K Altcode: 1976IAUT...16B.244K
No abstract at ADS
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Title: Circular Polarization of CYG X-1, SCO X-1 and 3c 273
Authors: Severny, A. B.; Kuvshinov, V. M.
1975IAUS...67..481S Altcode:
No abstract at ADS
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Title: Transit of Mercury across the solar disk
Authors: Efanov, V. A.; Moiseev, I. G.; Severny, A. B.
1974Natur.249..330E Altcode:
THE transit of Mercury across the solar disk on May 9, 1970 (4 h
20 min 30 s - 11 h 12 min 0 s UT), was observed by recording the
radio emission at a wavelength of 8 mm using a 22-m paraboloid radio
telescope<SUP>1</SUP>. The pencil beam of the antenna is of width D
= 1'.6 and the sensitivity of the radiometer ~= 1.5 K. The antenna
was steered so that Mercury was in the centre of the beam. Mercury
obscures the inhomogeneities of radio emission when passing across
the solar disk and some fluctuations of the flux of radio emission
can occur. The characteristic time of these fluctuations and their
amplitude characterise the sizes and temperatures of condensations
respectively. In Fig. 1 we show a sample of original (averaged over
15 s) records of fluctuations during the passage of Mercury across
the relatively active regions on the disk. Similar records, but with
slightly slower fluctuations of smaller amplitude have been obtained for
quiet regions of the disk. The autocorrelation curves for active (A) and
quiet (Q) regions (Fig. 2) reveal details of the nature of the emission.
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Title: Space observations of night-sky brightness.
Authors: Severny, A. B.; Terez, E. I.; Zvereva, A. M.
1974rnuo.confC..25S Altcode:
No abstract at ADS
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Title: Preliminary results obtained with an astrophotometer on
Lunokhod 2.
Authors: Severnyj, A. B.; Severny, A. B.; Terez, E. I.; Zvereva, A. M.
1974spre.conf..603S Altcode:
No abstract at ADS
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Title: The Comparison of the Magnetographic Magnetic Field Measured
in Different Spectral Lines
Authors: Gopasyuk, S. I.; Kotov, V. A.; Severny, A. B.; Tsap, T. T.
1973SoPh...31..307G Altcode:
The discrepancies in the values of longitudinal magnetic field
obtained from magnetographic records in different spectral lines
are considered. On the basis of extensive data including 60 pairs of
magnetographic maps for 11 spectral lines, obtained simultaneously
for one of these lines and λ6103 with the aid of the Crimean double
channel magnetograph, the following conclusions have been reached. The
relative field strength (6103) depends partly on the distance from the
center of the disk (Figure 4) and mainly on the magnetic sensitivity
of the line gλ<SUP>2</SUP> (Figure 3), pointing to the primary role
of saturation effect. The possible influence of line asymmetry on
these discrepancies is also suggested.
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Title: Development of methods of solar flare forecasting.
Authors: Severnyj, A. B.; Severny, A. B.; Steshenko, N. V.
1973spre.conf..809S Altcode: 1973spre....2..809S
No abstract at ADS
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Title: Comparisons of the Mean Solar Magnetic Field and the
Interplanetary Field Observed During 1969
Authors: Scherrer, P. H.; Wolcox, J. M.; Severny, A. B.
1972BAAS....4S.390S Altcode:
No abstract at ADS
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Title: Local magnetic fields on the sun.
Authors: Severnyj, A. B.; Severny, A. B.
1972sstp.conf...38S Altcode:
No abstract at ADS
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Title: Local Magnetic Fields on the Sun
Authors: Severny, A. B.
1972ASSL...29...38S Altcode: 1972sun..conf...38S
No abstract at ADS
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Title: Methods for the Forecasting of Solar Flares
Authors: Severny, A. B.; Steshenko, N. V.
1972ASSL...29..173S Altcode: 1972sun..conf..173S
No abstract at ADS
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Title: Methods for the forecasting of solar flares.
Authors: Severnyj, A. B.; Severny, A. B.; Steshenko, N. V.
1972sstp.conf..173S Altcode:
No abstract at ADS
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Title: The general magnetic field of the sun and its changes with time
Authors: Severny, A.
1972VA.....13..135S Altcode: 1971VA.....13..135S
No abstract at ADS
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Title: Extra-atmospheric observations of the night-sky brightness
at the sputniks Cosmos 51 and Cosmos 213. I. Method and calibration
of the measurements.
Authors: Dimov, N. A.; Severnyj, A. B.; Severny, A. B.
1972IzKry..45...53D Altcode:
No abstract at ADS
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Title: On the Circular Polarization of Some Peculiar Objects
Authors: Nikulin, N. S.; Kuvshinov, V. M.; Severny, A. B.
1971ApJ...170L..53N Altcode:
Circular polarization of several peculiar objects (in particular, X-ray
sources) has been measured with the stellar magnetograph of the 104-inch
Crimean reflecting telescope. Circular polarization greater than or
equal to 1 percent is suspected in the nuclei of the Seyfert galaxies
NGC 4151 and NGC 1068, and in the quasar SC 273. Rapid variations
of the amount and sense of circular polarization are observed in the
X-ray source Sco X-1 with time scales of the order of 30 minutes. An
appreciable effect is also detected in the nucleus of the planetary
nebula +3003639.
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Title: Time Fluctuations of the General Magnetic Field of the Sun
Authors: Severny, A. B.
1971QJRAS..12..363S Altcode:
No abstract at ADS
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Title: Comparison of the mean photospheric magnetic field and the
interplanetary magnetic field.
Authors: Wilcox, J. M.; Scherrer, P. H.; Severny, A.; Colburn, D. S.
1971BAAS....3R.265W Altcode:
No abstract at ADS
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Title: Determination of solar magnetograph zero level using
interplanetary magnetic field observations.
Authors: Scherrer, P. H.; Wilcox, J. M.; Severny, A.; Colburn, D. S.
1971BAAS....3Q.264S Altcode:
No abstract at ADS
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Title: The Magnetic Filds and the Polarization of Radio Emission in
the Active Center of October 1968
Authors: Erushev, N.; Severny, A. B.; Tsap, T.
1971IAUS...43..428E Altcode:
No abstract at ADS
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Title: On the Time Fluctuations of Magnetic Fields
Authors: Severny, A.
1971IAUS...43..340S Altcode:
No abstract at ADS
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Title: The Polar Field Time and Time Fluctuations of the General
Magnetic Field of the Sun
Authors: Severny, A. B.
1971IAUS...43..675S Altcode:
No abstract at ADS
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Title: Electric Currents Connected with the Proton Flares of 7 July
and 2 September, 1966
Authors: Severny, A. B.
1971IAUS...43..417S Altcode:
No abstract at ADS
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Title: Comparison of the Mean Photospheric Magnetic Field and the
Interplanetary Magnetic Field
Authors: Severny, A.; Wilcox, J. M.; Scherrer, P. H.; Colburn, D. S.
1970SoPh...15....3S Altcode:
The mean photospheric magnetic field of the sun seen as a star has
been compared with the interplanetary magnetic field observed with
spacecraft near the earth. Each change in polarity of the mean solar
field is followed about 4 1/2 days later by a change in polarity
of the interplanetary field (sector boundary). The scaling of the
field magnitude from sun to near earth is within a factor of two of
the theoretical value, indicating that large areas on the sun have
the same predominant polarity as that of the interplanetary sector
pattern. An independent determination of the zero level of the solar
magnetograph has yielded a value of 0.1±0.05 G. An effect attributed
to a delay of approximately one solar rotation between the appearance
of a new photospheric magnetic feature and the resulting change in
the interplanetary field is observed.
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Title: The Weak Magnetic Fields of Some Bright Stars
Authors: Severny, A.
1970ApJ...159L..73S Altcode:
The technique of the solar magnetograph applied at the coud
spectrograph of the 2.6-m reflecting telescope of the Crimean
Astrophysical Observatory for the measurement of stellar magnetic
fields has recently revealed weak longitudinal magnetic fields ( gauss)
of some bright stars.
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Title: On the Asymmetry of Moustaches
Authors: Koval, A. N.; Severny, A. B.
1970SoPh...11..276K Altcode:
A careful photometry of moustaches is carried out to reveal asymmetry
of their emission in the far wings (Δλ ⩾ 1 Å), if it exists. The
presence of background continuous emission in spectra of moustaches
demands special care with the photometry, and makes the current method
of comparison of rest-intensities inadequate. The other sources
of errors are also discussed. The blue asymmetry, as a systematic
difference of intensities between the blue and the red wing shows itself
in some cases, being 2-3 times larger than the probable errors. In
most moustaches investigated, the accompanying background continuous
emission shows a rapid increase to the violet.
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Title: The Night Sky Brightness Measured from Satellites Kosmos 51
and 213
Authors: Dimov, N. A.; Severny, A. B.; Zvereva, A. M.
1970IAUS...36..325D Altcode:
No abstract at ADS
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Title: Solar flares and magnetic fields.
Authors: Severny, A.
1970SSRv....1...92S Altcode:
No abstract at ADS
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Title: On the Contribution of Solar Activity to the Ultra Violet
Spectrum of the Sun
Authors: Bruns, A. V.; Prokofiev, V. K.; Severny, A. B.
1970IAUS...36..256B Altcode:
No abstract at ADS
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Title: Is the Sun a Magnetic Rotator?
Authors: Severny, A.
1969Natur.224...53S Altcode:
MEASUREMENTS of the general (polar) magnetic field of the
Sun<SUP>1</SUP> show that since September 1964 the Sun has behaved
on average like a dipole with a negative field strength at the North
Pole and an approximately equal positive field at the South Pole (the
mean ranging from 0.5 to 1.0 G). But because of a bias toward the area
of the negative polarity in the northern hemisphere, the net magnetic
flux was on average negative most of the time; in this sense the Sun
behaved like a “monopole”. There were large deviations from the mean,
however; for example, sometimes both poles had a field of the same sign
(in February-April 1965), and during the first half of 1964 the mean
strength at the South Pole was zero.
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Title: The magnetic fields and proton flare of 7 July 1966.
Authors: Severny, A.
1969AIQSY...3...11S Altcode:
No abstract at ADS
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Title: The fine structure of solar magnetic fields
Authors: Severny, A.
1969csph.conf...51S Altcode:
No abstract at ADS
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Title: Solar flares and magnetic fields
Authors: Severny, A. B.
1969sfsr.conf...38S Altcode:
No abstract at ADS
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Title: Sonneneruptionen und Magnetfelder.
Authors: Severny, A.
1969WisIE..11..745S Altcode:
No abstract at ADS
---------------------------------------------------------
Title: On the determination of night sky brightness from a space
vehicle.
Authors: Dimov, N. A.; Severny, A. B.
1969spre.conf..228D Altcode:
No abstract at ADS
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Title: Magnetic Fields and Flares in the Region CMP 20 September 1963
Authors: Moreton, G. E.; Severny, A. B.
1968SoPh....3..282M Altcode:
The position of bright knots of 30 flares at their very beginning
relative to the high-resolution isogauss maps of the longitudinal
component (H<SUB>∥</SUB>) and maps of the transverse component
(H<SUB>⊥</SUB>) of magnetic field are considered for seven days
during the passage of the active and large spot group in Sept. 1963
(see Table I and maps on Figures 1-8).
---------------------------------------------------------
Title: Comparison of 8-MM Solar Radio Features with Local Magnetic
Fields and Chromospheric Features
Authors: Efanov, V.; Moiseev, I.; Severny, A.
1968IAUS...35..588E Altcode:
No abstract at ADS
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Title: On the Lithium Abundance in Sunspots and the Undisturbed
Solar Atmosphere
Authors: Dubov, E.; Prokof'ev, V.; Severny, A.
1968HiA.....1..247D Altcode:
No abstract at ADS
---------------------------------------------------------
Title: Preliminary Communication on the Short-Period Oscillations
of Solar Magnetic Fields
Authors: Severny, A. B.
1968IAUS...35..233S Altcode:
No abstract at ADS
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Title: Space Observations Needed for Improving Our Knowledge of
Solar Flares
Authors: Severny, A. B.
1968HiA.....1..530S Altcode:
No abstract at ADS
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Title: Mass motions in flares and moustaches indicated by special
spectral features, Introductory lecture
Authors: Severny, A. B.
1968mmsf.conf...71S Altcode:
No abstract at ADS
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Title: The Crimean Astrophysical Observatory
Authors: Severny, A.; Stepanyan, N.
1967SoPh....1..484S Altcode:
No abstract at ADS
---------------------------------------------------------
Title: Fine structure of solar magnetic fields
Authors: Severny, A.
1967maco.conf..211S Altcode:
No abstract at ADS
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Title: Magnetic Fields and Flares in the Region with CMP 20 September
1963.
Authors: Moreton, G. E.; Severny, A. B.
1966AJ.....71R.172M Altcode:
Photoelectric measurements of both the longitudinal and transverse
components of magnetic fields were made daily during 17-24
September, using the line Fe I A5250; the resultant magnetograms
refer to fields <1000 G. The aperture corresponded to 2" X 4";
image motion may occasionally enlarge this resolution to about 6"
x 8". Careful registration of the magnetograms, photoheliograms,
and HCL filtergrams ensures accuracy of flare positions to within the
resolution of the magnetograms. Emphasis is placed on the position of
the emission knots that represent the first brightening of a flare:
(1) For 27 flares, 70% had first brightenings limited to two or three
points or knots, that occur nearly simultaneously in widely separated
parts of the activity center. The initial knots are separated by the
magnetic neutral line that divides regions of opposite polarity. Only
two flares had all their initial knots in a region of one polarity. (2)
At least one of the initial knots of a flare tends to lie humediately
adjacent to the neutral line, and in a region of greatest longitudinal
field gradient. For 60 separate knots, 80% were situated such that the
distance from the center of the knot to the neutral line was less than
10". (For comparison, the distance between the three umbra composing the
region was about 60"). Only four flares had an initial knot overlapping
the neutral line. (3) From 17-21 Septen~~er the flaring tends to favor
two distinct centers in the region. One center corresponds approximately
to where the transverse field vectors appear to cross or l~erge. The
resulting bifurcated appearance is suggestive of crossed transverse
fields. Other flares tend to occur in regions of strong, oppositely
directed, electric currents.
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Title: Activité Solaire (Solar Activity)
Authors: Severny, A. B.
1966IAUTB..12..143S Altcode:
No abstract at ADS
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Title: Observations of Star Fields Made Beyond the Atmosphere (With
3 Figures)
Authors: Dimov, N. A.; Severny, A. B.
1966lil..conf..113D Altcode:
No abstract at ADS
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Title: On the changes of magnetic fields connected with flares
Authors: Severny, A. B.
1965IAUS...22..358S Altcode:
No abstract at ADS
---------------------------------------------------------
Title: Spectra of Solar Activity Regions
Authors: Severny, A.
1965ASSL....1..221S Altcode: 1965sosp.conf..221S
No abstract at ADS
---------------------------------------------------------
Title: Introductory report
Authors: Severny, A. B.
1965IAUS...22..238S Altcode:
No abstract at ADS
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Title: Solar Magnetic Fields
Authors: Severny, A.
1964SSRv....3..451S Altcode:
This paper is a review of our observational knowledge on solar magnetic
fields. In Section 1 we make an attempt to summarize all observations
of the general magnetic field (m.f.) of the Sun. Section 2 deals with
the local m.f. at low latitudes and their connection with some features
on the disk. The m.f. of sunspots and their peculiar character are
considered in Section 3. The last section (4) is concerned with m.f. in
sunspot groups, their changes and connections with solar activity.
---------------------------------------------------------
Title: Solar Flares
Authors: Severny, A. B.
1964ARA&A...2..363S Altcode:
No abstract at ADS
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Title: On the Behavior of Magnetic Fields Associated with Solar Flares
Authors: Severny, A. B.
1964NASSP..50...95S Altcode: 1964psf..conf...95S
No abstract at ADS
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Title: Solar Magnetic Fields and the Great Flare of July 16, 1959.
Authors: Howard, Robert; Severny, A.
1963ApJ...137.1242H Altcode:
Ten magnetic maps of the active region on several days at the time of
the 3+ flare of July 16, 1 were obtained at the Crimean Astrophysical
Observatory. At some time during a 15-hour interval wil which the
flare occurred, the higher magnetic fields near and inside the sunspots
decreased by near factor of 3. The resulting loss of magnetic energy
amounted to about 1032 ergs, which is the estim energy emitted in the
form of cosmic rays from flares. Magnetic observations made of the
active re at Mount Wilson during the course of the flare could not have
shown the changes in the stronger fi seen in the Crimean observations.
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Title: Magnetically Active Regions on the Sun
Authors: Severny, A. B.
1962IAUTB..11..426S Altcode:
No abstract at ADS
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Title: Measurement of magnetic fields in solar prominences
Authors: Zirin, H.; Severny, A.
1961Obs....81..155Z Altcode:
No abstract at ADS
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Title: The motions and magnetic fields in the undisturbed solar
atmosphere (outside active regions)
Authors: Severny, A. B.
1960IAUS...12..327S Altcode:
No abstract at ADS
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Title: Transient velocity fields in the lower solar atmosphere -
Summary-introduction
Authors: Severny, A. B.
1960IAUS...12..403S Altcode: 1960IAUS...12S.....
No abstract at ADS
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Title: On the penetration of solar magnetic fields into the
chromosphere
Authors: Severny, A. B.; Bumba, V.
1958Obs....78...33S Altcode:
No abstract at ADS
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Title: The Processes in Active Regions on the Sun and Electromagnetics
Authors: Severny, A. B.
1958IAUS....6..114S Altcode:
No abstract at ADS
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Title: Buchbesprechung über: Theoretical Astrophysics
(Ref. G. Traving)
Authors: Ambartzumyan, V. A.; Mustel, E. R.; Severny, A. B.; Sobolev,
V. V.
1958ZA.....46..280A Altcode:
No abstract at ADS
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Title: Fine structure in solar spectra
Authors: Severny, A. B.
1956Obs....76..241S Altcode:
No abstract at ADS
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Title: Crimean Astrophysical Observatory
Authors: Severny, A. B.
1955S&T....14..500S Altcode:
No abstract at ADS
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Title: Investigation of flares and prominences at the crimean
astrophysical observatory
Authors: Severny, A. B.
1955VA......1..701S Altcode:
A survey is given of some of the results obtained at the Crimean
Obsrvatory during the past five years, referring to the hydrogen
spectrum of flares, the development of prominences and flares, and
allied problems.
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Title: On the influence of the concentration of energy source on
the character of stellar configuration
Authors: Severny, A. B.
1937MNRAS..97..699S Altcode:
No abstract at ADS
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Title: On Stellar configurations with core possessing a high density
of energy
Authors: Severny, A. B.
1936MNRAS..96..219S Altcode:
No abstract at ADS
