The study of the rapid brightness variability of the nucleus of NGC 4151

Details The study of the rapid brightness variability of the nucleus of NGC 4151 The study of the rapid brightness variability of the nucleus of NGC 4151

Jul 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989pazh...15..579l&link_type=abstract

Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 15, July 1989, p. 579-589. In Russian. In Russian. In Russian.

Astronomy and Astrophysics

Astronomy

5

Active Galactic Nuclei, Astronomical Photometry, Brightness Distribution, Seyfert Galaxies, Variability, Accretion Disks, Black Holes (Astronomy), Error Analysis, Luminosity, Quasars, Stellar Magnitude

Scientific paper

A search for the V-brightness rapid variability of the nucleus of the Seyfert galaxy NGC 4151 was carried out. The observations were carried out for a duration of 51 hrs over the course of 13 nights during 1987-1988. Variability with an amplitude of up to 0.1 m over a period of 15-30 min was found on several nights. The maximum luminosity variation rate is estimated to be about 10 to the 37 erg/sq sec, which amounts to 1 percent of the value allowed in the model of the accretion disk around a supermassive black hole.

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