Physics
Scientific paper
Dec 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aipc..599..910r&link_type=abstract
X-RAY ASTRONOMY: Stellar Endpoints,AGN, and the Diffuse X-ray Background. Edited by Nicholas E. White, Giuseppe Malaguti, and G
Physics
Galactic Nuclei, Circumnuclear Matter, And Bulges, Physics Of Black Holes, X-Ray Sources, X-Ray Bursts, Active And Peculiar Galaxies And Related Systems
Scientific paper
The broad fluorescent iron line profiles detected in many AGNs contain information about the black hole spin and the accretion disc and may help to test general relativity in the strong gravity regime. We embark on the computation of the temporal response of the line to the illuminating flux. Previous studies concentrated on the calculation of reverberation signatures from static sources illuminating the disc. We focus on the more physically justified case of flares located above the accretion disc and corotating with it. We compute the time dependent iron line taking into account all general relativistic effects and show that it is of very complex nature. We suggest that the temporal behavior of Fe line profiles seen in future data from XMM or Constellation-X may not necessarily imply a complicated model but could be explained for example in the framework of the orbiting flare model. .
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