X-ray reflection in Galactic Black Hole Candidates: smeared edge profiles and resonant Auger destruction

Details X-ray reflection in Galactic Black Hole Candidates: smeared edge profiles and resonant Auger destruction X-ray reflection in Galactic Black Hole Candidates: smeared edge profiles and resonant Auger destruction

1995-10-04

arxiv.org/abs/astro-ph/9510022v1

Mon.Not.Roy.Astron.Soc.278:1082,1996

Astronomy and Astrophysics

Astrophysics

uuencoded compressed postscript. The preprint is also available at http://www.ast.cam.ac.uk/preprint/PrePrint.html

Scientific paper

We consider the spectra of Thomson-thick, geometrically-thin accretion discs around Galactic black hole candidates in the reflection model and compute their iron K edges and iron K$\alpha$ lines. We compare the smeared iron K edge profiles that we compute with observation and find them to be a satisfactory description of the data. We find that a combination of Doppler broadening and resonant Auger destruction of line photons can make iron K$\alpha$ lines very difficult to detect in highly ionized inclined discs. We detail the physics of resonant Auger destruction at the level it is currently understood and point out its implications.

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