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Optical Variability of the Nuclei of Seyfert Galaxies

Published online by Cambridge University Press:  14 August 2015

V. M. Lyuty  and
V. I. Pronik
V. M. Lyuty
Affiliation:
Sternberg State Astronomical Institute, Moscow University, Moscow, U.S.S.R.
V. I. Pronik
Affiliation:
Crimean Astrophysical Observatory of the Academy of Sciences U.S.S.R. Crimea, U.S.S.R.

Abstract

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The continuum variability (UBV observations), the variations in the emission lines, and the properties of the central source in the nuclei of Seyfert galaxies are discussed. There is the quasi-periodicity in the light variations of the nuclei. The emission lines show the variations both in the intensity and the profiles. All data lead to the conclusion, that both continuum and emission-lines intensity variations are due to the variability of the central nonthermal source.

Type
Part 11 / Variable Quasi-Stellar Objects and Nuclei of Galaxies
Information
Symposium - International Astronomical Union , Volume 67: Variable Stars and Stellar Evolution , 1975 , pp. 591 - 604
Copyright
Copyright © Reidel 1975 

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