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Photoelectric Observations of Continuous and Emission Lines Variability in Spectra of Seyfert Galaxy NGC 1275 Nucleus

Published online by Cambridge University Press:  04 August 2017

I. Pronik  and
N. Merkulova
I. Pronik
Affiliation:
Crimean Astrophysical Observatory, USSR
N. Merkulova
Affiliation:
Crimean Astrophysical Observatory, USSR

Abstract

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The spectral observations of NGC 1275 nucleus in the range of 3700-7000 AA being carried out since 1971 to 1978 showed the existance of hydrogen and forbidden emission lines variability with the time scale of 5–6 and 1–2 years (Pronik, 1980). Observations on 6-m telescope during 4 nights in January, 1977 permit to reveal the scale variability of these lines 2–3 days, too (Merkulova, Pronik, 1985). These results evidenced the necessary of close photoelectric series of spectral observations of the galaxy nucleus with the filling factor of several days and hours.

Type
IV. Variability
Information
Symposium - International Astronomical Union , Volume 121: Observational Evidences of Activity of Galaxies , 1987 , pp. 195 - 197
Copyright
Copyright © Reidel 1987 

References

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