RXTE Observations of Cygnus X-1: Broad-Band Spectra and High-Resolution Timing

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dc.creatorPottschmidt, K.
dc.creatorWilms, J.
dc.creatorNowak, M. A.
dc.creatorDove, J. B.
dc.creatorBegelman, M. C.
dc.creatorStaubert, R.
dc.date1998-10-08
dc.date.accessioned2026-07-07T02:28:18Z
dc.date.available2026-07-07T02:28:18Z
dc.descriptionWe present results from a 20 ksec RXTE observation of the black hole candidate Cyg X-1. We apply self-consistent accretion disk corona models to these hard state data and show that Comptonization in a spherical corona irradiated by soft photons from an exterior cold disk is able to successfully model the spectrum. We also present the power spectrum, the coherence function, and the time lags for lightcurves from four energy bands. By modeling the high-resolution lightcurves with stochastic linear state space models, we show that the rapid hard state variability of Cyg X-1 can be explained with a single timescale.
dc.description4 pages, 5 figures, also available at http://aitzu3.ait.physik.uni-tuebingen.de/publications/preprints1998.html, to be published in "Highlights of X-Ray Astronomy, a symposium in honour of Joachim Truemper" (B. Aschenbach et al., eds.), MPE Report
dc.identifierhttps://arxiv.org/abs/astro-ph/9810139
dc.identifierhttp://arxiv.org/abs/astro-ph/9810139
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/13064
dc.subjectAstrophysics
dc.titleRXTE Observations of Cygnus X-1: Broad-Band Spectra and High-Resolution Timing
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