Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aipc..586..699p&link_type=abstract
RELATIVISTIC ASTROPHYSICS: 20th Texas Symposium. AIP Conference Proceedings, Volume 586, pp. 699-701 (2001).
Astronomy and Astrophysics
Astrophysics
Active And Peculiar Galaxies And Related Systems, Galactic Nuclei, Circumnuclear Matter, And Bulges, Kinematics, Dynamics, And Rotation, Infall, Accretion, And Accretion Disks, Black Holes
Scientific paper
The observed iron Kα fluorescence lines in Seyfert I galaxies provide strong evidence for an accretion disk near a supermassive black hole as a source of the line emission. Here we present an analysis of the geometrical and kinematic properties of the disk based on the extreme frequency shifts of a line profile as determined by the measurable flux in both the red and blue wings. The edges of the line are insensitive to the distribution of the X-ray flux over the disk, and hence provide a robust alternative to profile fitting of disk parameters. Our approach yields new, strong bounds on the inclination angle of the disk and the location of the emitting region. We apply our method to interpret the observational data from a few Seyfert I nuclei. .
Bromley Benjamin C.
Miller Warner A.
Pariev Vladimir I.
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