The broadband spectrum of Cygnus X-1

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dc.creatorFritz, S.
dc.creatorWilms, J.
dc.creatorPottschmidt, K.
dc.creatorNowak, M. A.
dc.creatorKendziorra, E.
dc.creatorKirsch, M. G.
dc.creatorKreykenbohm, I.
dc.creatorSantangelo, A.
dc.date2007-06-14
dc.date.accessioned2026-07-07T08:10:09Z
dc.date.available2026-07-07T08:10:09Z
dc.descriptionThe Black Hole (BH) binary Cygnus X-1 has been observed simultaneously by INTEGRAL, RXTE, and XMM-Newton for four times in November and December 2004, when Cyg X-1 became first observable with XMM-Newton. During these observations the source was found in one of its transitional states between the hard state and the soft state. We obtained a high signal to noise spectrum of Cyg X-1 from 3 keV to 1 MeV which allows us to put constraints on the nature of the Comptonizing plasma by modeling the continuum with Comptonization models as eqpair (Coppi 1992). Using XMM-Newton we were also able to confirm the presence of a relativistically broadened Fe K-alpha line.
dc.description4 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/0706.2137
dc.identifierhttp://arxiv.org/abs/0706.2137
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/131751
dc.subjectAstrophysics
dc.titleThe broadband spectrum of Cygnus X-1
dc.typetext

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