Astronomy and Astrophysics – Astronomy
Scientific paper
May 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aas...196.2120r&link_type=abstract
American Astronomical Society, 196th AAS Meeting, #21.20; Bulletin of the American Astronomical Society, Vol. 32, p.702
Astronomy and Astrophysics
Astronomy
Scientific paper
The broad iron line, seen in the X-ray spectra of many AGN, is thought to originate from the inner regions of the black hole accretion disk. I will summarize recent developments in using this line to probe the accretion disk structure, as well as the mass and spin of black holes in Seyfert galaxies. In particular, I will present observational evidence suggesting that the inner regions of the accretion disks in low-luminosity AGN (LLAGN) are distinctly different from those in higher-luminosity AGN. This tentative result lends support to models of LLAGN based upon advective accretion disks. This work was primarily supported through the Hubble Fellowship Program.
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