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Spectral Variability of Some Seyfert Galaxies

Published online by Cambridge University Press:  12 April 2016

E.K. Denissyuk ,
V.N. Gaisina  and
R.R. Valiullin
E.K. Denissyuk
Affiliation:
Fesenkov Astrophysical Institute, Kamenskoje Plato, Almaty, 480020, Kazakhstan. Electronic mail: [email protected]; [email protected]; [email protected]
V.N. Gaisina
Affiliation:
Fesenkov Astrophysical Institute, Kamenskoje Plato, Almaty, 480020, Kazakhstan. Electronic mail: [email protected]; [email protected]; [email protected]
R.R. Valiullin
Affiliation:
Fesenkov Astrophysical Institute, Kamenskoje Plato, Almaty, 480020, Kazakhstan. Electronic mail: [email protected]; [email protected]; [email protected]

Abstract

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The very first spectrograms of 40 Seyfert galaxies are discussed. All these objects were taken from Markarian’s lists of galaxies. They were first investigated and classified at Fesenkov Astrophysical Institute during 1973-1988. Spectral study was carried out with a slit spectrograph, attached to the 70-cm telescope and equipped with a three cascades image-tube. Repeated observations of 22 galaxies were obtained in 1985-2000. An analysis of possible spectral variability of the studied galaxies over 10-26 years was made. A list of objects which are the most interesting for further observations is presented.

Type
Part 5. AGN Phenomena
Information
International Astronomical Union Colloquium , Volume 184: AGN Surveys , 2002 , pp. 361 - 362
Copyright
Copyright © Astronomical Society of the Pacific 2002

References

Lipovetsky, V.A. et al. 1987, Communications of SAO, 55 Google Scholar