The origin of the strong soft excess and puzzling iron line complex in Mkn 841

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dc.creatorPetrucci, P. O.
dc.creatorPonti, G.
dc.creatorMatt, G.
dc.creatorMaraschi, L.
dc.creatorMalzac, J.
dc.creatorMouchet, M.
dc.creatorBoisson, C.
dc.creatorLonginotti, A.
dc.creatorNandra, K.
dc.creatorFerrando, P.
dc.creatorHenri, G.
dc.date2006-11-21
dc.date.accessioned2026-07-07T10:20:56Z
dc.date.available2026-07-07T10:20:56Z
dc.descriptionMkn 841 has been observed during 3 different periods (January 2001, January 2005 and July 2005) by XMM-Newton for a total cumulated exposure time of ~108 ks. We present in this paper a broad band spectral analysis of the complete EPIC-pn data sets. These observations confirm the presence of the strong soft excess and complex iron line profile known to be present in this source since a long time. They also reveal their extreme and puzzling spectral and temporal behaviors. Indeed, the 0.5-2 keV soft X-ray flux decreases by a factor 3 between 2001 and 2005 and the line shape appears to be a mixed of broad and narrow components, both variable but on differen timescales. The broad-band 0.5-10 keV spectra are well described by a model including a primary power law continuum, a blurred photoionized reflection and a narrow iron line, the blurred reflection fitting self-consistently the soft excess and the broad line component. The origin and nature of the narrow component is unclear.
dc.description4 pages, 6 Figures. Accepted for publication in Astronomische Nachrichten, proceedings of the ESAC Workshop "Variable and Broad Iron Lines around Black Holes"
dc.identifierhttps://arxiv.org/abs/astro-ph/0611665
dc.identifierhttp://arxiv.org/abs/astro-ph/0611665
dc.identifierAstron.Nachr.327:1043-1046,2006
dc.identifierdoi:10.1002/asna.200610689
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/175011
dc.subjectAstrophysics
dc.titleThe origin of the strong soft excess and puzzling iron line complex in Mkn 841
dc.typetext

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