Broad-band spectral modeling of Cyg X-1 and 1E1740.7

Details Broad-band spectral modeling of Cyg X-1 and 1E1740.7 Broad-band spectral modeling of Cyg X-1 and 1E1740.7

May 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aipc..410..878s&link_type=abstract

The fourth compton symposium. AIP Conference Proceedings, Volume 410, pp. 878-880 (1997).

Computer Science

X-Ray Binaries, Black Holes, X-Ray, Luminosities, Magnitudes, Effective Temperatures, Colors, And Spectral Classification

Scientific paper

We present the simultaneous ASCA and BATSE spectra of the ``low-hard'' state of Cyg-X1 and 1E1740.7 for several epochs in 1993 and 1994. We model the broad-band spectral data with the Sunyaev-Titarchuk (ST) inverse Compton model. The best-fit parameters are consistent with a temperature range of 29 keV-57 keV and an energy index of 0.47-0.84. These correspond to Komponeet parameter y of 1.2-2.5 and Thomson depth of 1.6-3.3, consistent with past observations.

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