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Spectral Transitions in Cyg X-1 and Other Black Hole X-Ray Binaries
Ann A. Esin, Ramesh Narayan, Wei Cui +2
We show that the model proposed by Esin, McClintock & Narayan (1997) for the low state, intermediate state and high state of the black hole soft X-ray transient, Nova Muscae 1991,…
Two-phase spectral modelling of 1E1740.7-2942
O. Vilhu, J. Nevalainen, J. Poutanen +5
Combined ASCA and SIGMA data of 1E1740.7-2942 during the standard state (September 1993 and 1994) were fitted with two-phase models (ISMBB/Poutanen at al. and ADAF/Narayan et al.).…
Advection-Dominated Accretion and the Spectral States of Black Hole X-Ray Binaries: Application to Nova Muscae 1991
A. A. Esin, J. E. McClintock, R. Narayan
We present a self-consistent model of accretion flows which unifies four distinct spectral states observed in black hole X-ray binaries: quiescent, low, intermediate and high state…
Advection-Dominated Accretion Model of X-Ray Nova Muscae in Outburst
A. A. Esin, J. E. McClintock, R. Narayan
We present a model for the high-low state transition of the X-Ray Nova GS 1124-68 (Nova Muscae 1991) observed by Ginga. The model consists of an advection-dominated accretion flow…
Heating and Cooling of Hot Accretion Flows by Non Local Radiation
Ann A. Esin
We consider non-local effects which arise when radiation emitted at one radius of an accretion disk either heats or cools gas at other radii through Compton scattering. We discuss…