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The NGC 1275 Galaxy Nucleus Emission Spectrum Variability at Various Stages of Activity

Published online by Cambridge University Press:  07 August 2017

I. I. Pronik
I. I. Pronik*
Affiliation:
Crimean Astrophysical Observatory, USSR

Extract

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Emission lines variability of Seyfert galaxy NGC 1275 nucleus in the scales of years and months has been observed since 1971 (I. Pronik, 1980). The photoelectric observations of I. Pronik and N. Merkulova (1987) show, that the variability in Hβ and 4959+ 5007 A [OIII] lines occurs also in the time scale of several days. Hereinafter the analysis of Hβ and [OIII] variable emission lines within months is presented according to photographic observations carried out from 1971 till 1982 by I. Pronik (1980), V. Doroshenko and V. Terebizh (1983) and K. Chuvaev (1985).

Type
Part 2: BLR and Variability
Information
Symposium - International Astronomical Union , Volume 134: Active Galactic Nuclei , 1989 , pp. 88 - 89
Copyright
Copyright © Kluwer 1989 

References

Chuvaev, K. 1985, Pisma v Astron.J., II, 803.Google Scholar
Doroshenko, V., Terebizh, V. 1983, Trudi GAISH, 55, 64.Google Scholar
Lyutyi, V., 1980, Pisma v Astron.J., 6, 223.Google Scholar
Pronik, I., 1980, Izv.Krimsk.Astrofiz. obs., 60, 131.Google Scholar
Pronik, I., Merkulova, N., 1987, “Observational Evidence of Activity in Galaxies”, Proc. IAU Sym. No 121, p. 195.Google Scholar