Short term X-ray rms variability of Cyg X-1

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dc.creatorGleissner, T.
dc.creatorWilms, J.
dc.creatorPottschmidt, K.
dc.creatorUttley, P.
dc.creatorNowak, M. A.
dc.creatorStaubert, R.
dc.date2002-07-29
dc.date.accessioned2026-07-07T02:04:27Z
dc.date.available2026-07-07T02:04:27Z
dc.descriptionA linear dependence of the amplitude of broadband noise variability on flux for GBHC and AGN has been recently shown by Uttley & McHardy (2001). We present the long term evolution of this rms-flux-relation for Cyg X-1 as monitored from 1998-2002 with RXTE. We confirm the linear relationship in the hard state and analyze the evolution of the correlation for the period of 1996-2002. In the intermediate and the soft state, we find considerable deviations from the otherwise linear relationship. A possible explanation for the rms-flux-relation is a superposition of local mass accretion rate variations.
dc.description3 pages, 3 figures, Proceedings of the 4th Microquasar Workshop, eds. Ph Durouchoux, Y. Fuchs and J. Rodriguez, published by the Center for Space Physics: Kolkata
dc.identifierhttps://arxiv.org/abs/astro-ph/0207610
dc.identifierhttp://arxiv.org/abs/astro-ph/0207610
dc.identifierPh. Durouchoux, Y. Fuchs, and J. Rodriguez (Eds.), New Views on Microquasars, Kolkata: Centre for Space Physics, 2004, p. 46
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/4766
dc.subjectAstrophysics
dc.titleShort term X-ray rms variability of Cyg X-1
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