Temporal Characteristics of Compton Reflection from Accretion Disks

Details Temporal Characteristics of Compton Reflection from Accretion Disks Temporal Characteristics of Compton Reflection from Accretion Disks

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aas...191.4814b&link_type=abstract

American Astronomical Society, 191st AAS Meeting, #48.14; Bulletin of the American Astronomical Society, Vol. 29, p.1290

Astronomy and Astrophysics

Astronomy

Scientific paper

Compton reflection has been invoked to explain energy spectra of accreting compact sources from galactic black hole candidates to AGN. While much attention has been given to the spectral characteristics of the reflection process, not much attention has been given to the temporal characteristics. Temporal studies can provide additional evidence for support or rejection of the reflection hypothesis. We treat the problem of time-dependent Compton reflection produced by a point source of radiation illuminating an infinite optically-thick disk of cold Solar composition material. We present an analytic approximation for computing the reflected photon flux as a function of time. The reflection produces a broad feature in the power spectrum at a frequency f ~ c/h, where h is the height of the photon source above the disk.

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