Detecting Accretion Disks in Active Galactic Nuclei

Details Detecting Accretion Disks in Active Galactic Nuclei Detecting Accretion Disks in Active Galactic Nuclei

Apr 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997pasj...49..159f&link_type=abstract

Publications of the Astronomical Society of Japan, v.49, p.159-169.

Astronomy and Astrophysics

Astronomy

66

Black Holes, Galaxies: Active, Galaxies: Quasars, X-Rays: Galaxies

Scientific paper

Recent X-ray observations of active galactic nuclei with ASCA suggest that we may be observing Fe-K line emission from very close to the central black-black hole. We provide here the relevant formalism to interpret those observations. We show how to model the appearance of an accretion disk around a rotating black hole and line profiles from disk emission. We try to present in a coherent way results that are scattered in the litterature and/or that are limited to particular cases. We extend these results to the more general case of a rotating black hole (Kerr metric). We finally discuss the relation of the full width at zero intensity of the line to the angular momentum of the black hole.

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