The Evolution of the Optically Thick Accretion Disk in Nova MUSCAE

Details The Evolution of the Optically Thick Accretion Disk in Nova MUSCAE The Evolution of the Optically Thick Accretion Disk in Nova MUSCAE

Jul 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997apj...484..848m&link_type=abstract

Astrophysical Journal v.484, p.848

Physics

6

Black Hole Physics, Radiation Mechanisms: Thermal, Accretion, Accretion Disks, Stars: Novae, Cataclysmic Variables, X-Rays: Stars

Scientific paper

We here model the soft X-ray flux from the black hole X-ray nova, GS 1124-68 (Nova Muscae, GRS 1124-68) as emission from an optically thick accretion disk with Comptonization. Our results suggest that the disk's inner edge has a radius the dependence of which on the accretion rate is a power law, and that the slope of this function changes between the different spectral states. This disk configuration retains a hot inner region, which can account for the hard X-rays, although its structure appears to be different during the soft and ultra--soft states.

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