Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aas...191.0804b&link_type=abstract
American Astronomical Society, 191st AAS Meeting, #08.04; Bulletin of the American Astronomical Society, Vol. 29, p.1222
Astronomy and Astrophysics
Astronomy
Scientific paper
Making the reasonable assumptions that the innermost part of an accretion disk around a black hole is unstable and clumpy and that it is illuminated by X-ray sources originating above it, we model the X-ray variability induced by the clumpy matter moving relativistically around the black hole. Apart from providing a general study of this class of variability model, these simulations include double gravitational bending effects: both the paths of the photons from the X-ray sources falling onto the disk and the paths of outgoing photons reflected by the clumpy region of the accretion disk are affected, but the former effect has not been considered previously. Various emission-laws for the incident X-ray sources are investigated. It is found that if the primary source emits a power-law spectrum then the unity temporal coherence between different X-ray bands recently observed in the Galactic black hole candidates GX 339-4 and Cyg X-1 can be produced. This work was supported in part by NASA grant NAG 5-3098.
Bao Gang
Wiita Paul J.
No associations
LandOfFree
The Coherent X-ray Variability of Black Hole Candidates does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Coherent X-ray Variability of Black Hole Candidates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Coherent X-ray Variability of Black Hole Candidates will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1172809