Peculiarities in the optical variability of the galaxy NGC 4151

Details Peculiarities in the optical variability of the galaxy NGC 4151 Peculiarities in the optical variability of the galaxy NGC 4151

Dec 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981pazh....7..657l&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 7, Nov. 1981, p. 657-661.) Soviet Astronomy Letters, vol. 7, Nov.-Dec. 1981, p. 364-366

Astronomy and Astrophysics

Astronomy

2

Astronomical Spectroscopy, Galactic Nuclei, Periodic Variations, Radiant Flux Density, Seyfert Galaxies, Visible Spectrum, Black Holes (Astronomy), Galactic Structure, Light Curve, Orbits

Scientific paper

An analysis of photographic and photoelectric observations of the optical variability of the nucleus of the Seyfert galaxy NGC 4151 is presented. A multicomponent nuclear structure is discovered consisting of a fast component, a periodic fluctuation, and three various slow components. It is confirmed by examining a periodogram that the mean light curve exhibits a secondary maximum. The phase of maximum is found to shift with a 126 day period, with variations occuring in cycles of approximately 20 years. This may be evidence of orbital motion about a central body such as a supermassive black hole, whose mass would be approximately 10 to the 8th solar masses and whose orbital velocity would be about 10 to the 4th km/sec.

Affiliated with

Also associated with

No associations

Rating

Peculiarities in the optical variability of the galaxy NGC 4151 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Peculiarities in the optical variability of the galaxy NGC 4151, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Peculiarities in the optical variability of the galaxy NGC 4151 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1265079