2010A&A...521A..15A


C.D.S. - SIMBAD4 rel 1.7 - 2020.08.04CEST22:12:58

2010A&A...521A..15A - Astronomy and Astrophysics, volume 521, A15-15 (2010/10-1)

Leaving the innermost stable circular orbit: the inner edge of a black-hole accretion disk at various luminosities.

ABRAMOWICZ M.A., JAROSZYNSKI M., KATO S., LASOTA J.-P., ROZANSKA A. and SKADOWSKI A.

Abstract (from CDS):

The ``radiation inner edge'' of an accretion disk is defined as the inner boundary of the region from which most of the luminosity emerges. Similarly, the ``reflection edge'' is the smallest radius capable of producing a significant X-ray reflection of the fluorescent iron line. For black hole accretion disks with very sub-Eddington luminosities these and all other ``inner edges'' coexist at the innermost stable circular orbit (ISCO). Thus, in this case, one may rightly consider ISCO as the unique inner edge of the black hole accretion disk. However, even at moderate luminosities, there is no such unique inner edge because differently defined edges are located at different places. Several of them are significantly closer to the black hole than ISCO. These differences grow with the increasing luminosity. For nearly Eddington luminosities, they are so huge that the notion of the inner edge loses all practical significance.

Abstract Copyright:

Journal keyword(s): black hole physics - accretion, accretion disks

Simbad objects: 2

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Number of rows : 2

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 V* QX Nor LXB 16 12 43.0 -52 25 23           ~ 830 1
2 Granat 1915+105 LXB 19 15 11.54938 +10 56 44.7585           ~ 2289 0

    Equat.    Gal    SGal    Ecl

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2020.08.04-22:12:58

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