Spectral Transitions in Cygnus X-1 and Other Black Hole X-ray Binaries Ann A. and Ramesh
نویسندگان
چکیده
We show that the model proposed by Esin, McClintock, & Narayan for the low state, intermediate state, and high state of the black hole soft X-ray transient, Nova Muscae 1991, is consistent with the spectral evolution of the black hole X-ray binary, Cyg X-1, during the hard-to-soft state transition observed in 1996. We also apply the model to the outbursts of two other black hole X-ray transients, GRO J0422]32 and GRO J1719[24. Subject headings : accretion, accretion disks È black hole physics È stars : individual (Cygnus X-1, GRO J0422]32, GRO J1719[24) È X-rays : stars
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