Coronae of black hole accretion disks: the X-ray view

Details Coronae of black hole accretion disks: the X-ray view Coronae of black hole accretion disks: the X-ray view

May 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...204.4606r&link_type=abstract

American Astronomical Society Meeting 204, #46.06; Bulletin of the American Astronomical Society, Vol. 36, p.736

Astronomy and Astrophysics

Astronomy

Scientific paper

Accreting black holes are prodigious sources of hard X-rays, supporting the notion that these objects support powerful coronae. I will discuss the constraints on the nature of these coronae that arise from modern spectral and timing X-ray observations. A particularly powerful probe are the relativistically broadened iron fluorescent lines observed in these systems; observations of these spectral features suggest the existence of extremely compact coronae very close to the black hole event horizon. Evidence for disk-corona coupling from observations of quasi-periodic oscillations will also be discussed.

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