RXTE observation of Cygnus X-1: spectra and timing

Details RXTE observation of Cygnus X-1: spectra and timing RXTE observation of Cygnus X-1: spectra and timing

May 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aipc..410..849w&link_type=abstract

The fourth compton symposium. AIP Conference Proceedings, Volume 410, pp. 849-853 (1997).

Computer Science

5

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

Scientific paper

We present preliminary results from the analysis of an RXTE observation of Cygnus X-1 in the hard state. We show that the observed X-ray spectrum can be explained with a model for an accretion disk corona, in which a hot sphere is situated inside of a cold accretion disk. Accretion disk corona models with a slab-geometry do not successfully fit the data. We also present the observed temporal properties of Cyg X-1, i.e. the coherence-function and the time-lags, and discuss the constraints these temporal properties impose for the modeled accretion geometry in Cyg X-1.

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