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Simultaneous UBVRI Light Curves of the Seyfert Galaxy NGC 4151 During the Extraordinary Brightening in 1989–1996

Published online by Cambridge University Press:  25 May 2016

N. Merkulova ,
L. Metik  and
I. Pronik
N. Merkulova
Affiliation:
Crimean Astrophysical Observatory, Crimea, Ukraine
L. Metik
Affiliation:
Crimean Astrophysical Observatory, Crimea, Ukraine
I. Pronik
Affiliation:
Crimean Astrophysical Observatory, Crimea, Ukraine

Extract

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The nucleus of the Seyfert galaxy NGC 4151 is known to be variable in the optical on different timescales: from minutes to tens of years. A new cycle of activity of the nucleus is investigated from 1989.

Type
IV. AGN Related Phenomena
Information
Symposium - International Astronomical Union , Volume 194: Activity in Galaxies and Related Phenomena , 1999 , pp. 436 - 437
Copyright
Copyright © Astronomical Society of the Pacific 1999