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Accretion Disks in Black Hole Candidates Observed with ASCA

Published online by Cambridge University Press:  25 May 2016

T. Dotani*
Affiliation:
Institute of Space and Astronautical Science 3-1-1 Yoshino-dai, Sagamihara, Kanagawa 229, Japan

Abstract

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Structure of the accretion disk is compared between the soft and hard states of Cyg X-1 using the ASCA data. Large uncertainty of the disk parameters in hard state prevent us from drawing clear conclusion, but the data are consistent with a factor of 3 larger (optically thick) inner disk boundary in the hard state than in the soft state.

Type
Session 3: Diagnostics of High Gravity Objects with X- and Gamma Rays
Copyright
Copyright © Kluwer 1998 

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