X-ray Variability of Active Galactic Nuclei and the Flare Model

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dc.creatorGoosmann, R. W.
dc.creatorCzerny, B.
dc.creatorDumont, A. -M.
dc.creatorMouchet, M.
dc.creatorRozanska, A.
dc.creatorKaras, V.
dc.creatorDovciak, M.
dc.date2005-04-06
dc.date.accessioned2026-07-07T02:17:24Z
dc.date.available2026-07-07T02:17:24Z
dc.descriptionShort-term variability of X-ray spectra has been reported for several Active Galactic Nuclei. Significant X-ray flux variations are observed within time scales down to 10^4 -- 10^5 seconds. We discuss short variability time scales in the framework of the X-ray flare model, which assumes the release of a large hard X-ray flux above a small portion of the accretion disk. The resulting observed X-ray spectrum is composed of the primary radiation as well as a reprocessed/Compton reflection component that we model performing numerical radiative transfer simulations. We conduct Monte-Carlo simulations of large flare distributions across the disk including relativistic corrections of the observed radiation and discuss general implications on AGN spectra and their variability.
dc.description8 pages, 7 figures, proceedings for a poster at the COSPAR meeting 2004 held in Paris, France; accepted by Advances in Space Research
dc.identifierhttps://arxiv.org/abs/astro-ph/0504148
dc.identifierhttp://arxiv.org/abs/astro-ph/0504148
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/9159
dc.subjectAstrophysics
dc.titleX-ray Variability of Active Galactic Nuclei and the Flare Model
dc.typetext

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