Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...377...89v&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 377, Aug. 10, 1991, p. 89-99.
Astronomy and Astrophysics
Astrophysics
78
Active Galactic Nuclei, Line Shape, Line Spectra, Radio Galaxies, Seyfert Galaxies, Emission Spectra, H Beta Line, Light Curve
Scientific paper
The results of a variability study of the flux and profile of H-beta in 3C 390.3 are presented. Spectra of this object were obtained at 39 epochs during the years 1974-1988. It is shown that the fluctuations of the H-beta flux closely mimic the variations of the optical continuum during that period. The time scale for the emission-line variations is shorter than a year, and perhaps as short as a month. The blue side of the H-beta profile ('blue bump') also followed closely the continuum variations, but the red side ('red bump') did not. The ratio of the fluxes of the blue and red bumps behaved in a very regular, nearly sinusoidal fashion. It reached a maximum in mid-1975 and at the end of 1985, a time interval of 10.4 yr. The velocity of the peak of the blueshifted bump drifted by +900 km/s during the 14-yr interval covered by the observations.
Veilleux Sylvain
Zheng Wei
No associations
LandOfFree
Unique broad-line profile variations in the radio galaxy 3C 390.3 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 Unique broad-line profile variations in the radio galaxy 3C 390.3, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Unique broad-line profile variations in the radio galaxy 3C 390.3 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1725185