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Truncated disc versus extremely broad iron line in XTE J1650-500

Done, C.; Gierliński, M.


M. Gierliński


There is growing evidence from both spectral and timing properties that there is a truncated inner accretion disc in low mass accretion rate Galactic black hole systems. The detection of extremely smeared relativistic iron lines in some of these systems is the only current piece of evidence which conflicts with this geometrical interpretation of the low/hard state. Here, we show that the line width in the BeppoSAX data of a bright low/hard state of the transient black hole XTE J1650−500 is indeed consistent with extreme relativistic effects. However, the relativistic smearing can be significantly reduced if there is also resonance iron K line absorption from an outflowing disc wind. The iron line smearing is then completely compatible with a truncated disc, so it gives no information on the black hole spin.


Done, C., & Gierliński, M. (2006). Truncated disc versus extremely broad iron line in XTE J1650-500. Monthly Notices of the Royal Astronomical Society, 367(2), 659-668.

Journal Article Type Article
Publication Date 2006-04
Deposit Date May 2, 2008
Publicly Available Date May 2, 2008
Journal Monthly Notices of the Royal Astronomical Society
Print ISSN 0035-8711
Electronic ISSN 1365-2966
Publisher Royal Astronomical Society
Peer Reviewed Peer Reviewed
Volume 367
Issue 2
Pages 659-668
Keywords Accretion discs, Black hole physics, X-rays, Binaries.


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