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The very high state accretion disc structure from the Galactic black hole transient XTE J1550 - 564

Kubota, A.; Done, C.

Authors

A. Kubota



Abstract

The 1998 outburst of the bright Galactic black hole binary system XTE J1550 - 564 was used to constrain the accretion disc structure in the strongly Comptonized very high state spectra. These data show that the disc emission is not easily compatible with the constant area L~T4 behaviour seen during the thermal-dominated high/soft state and weakly Comptonized very high state. Even after correcting for the effects of the scattering geometry, the disc temperature is always much lower than expected for its derived luminosity in the very high state. The simplest interpretation is that this indicates that the optically thick disc is truncated in the strongly Comptonized very high state, so trivially giving the observed continuity of properties between the low/hard and very high states of Galactic black holes.

Citation

Kubota, A., & Done, C. (2004). The very high state accretion disc structure from the Galactic black hole transient XTE J1550 - 564. Monthly Notices of the Royal Astronomical Society, 353(3), 980-990. https://doi.org/10.1111/j.1365-2966.2004.08134.x

Journal Article Type Article
Publication Date Sep 1, 2004
Deposit Date Apr 29, 2008
Publicly Available Date Mar 28, 2024
Journal Monthly Notices of the Royal Astronomical Society
Print ISSN 0035-8711
Electronic ISSN 1365-2966
Publisher Royal Astronomical Society
Peer Reviewed Peer Reviewed
Volume 353
Issue 3
Pages 980-990
DOI https://doi.org/10.1111/j.1365-2966.2004.08134.x
Keywords Accretion, Accretion discs, Black hole physics, X-rays.
Publisher URL http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2004MNRAS.353..980K&db_key=AST

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