Please use this identifier to cite or link to this item: http://hdl.handle.net/2307/295
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dc.contributor.authorRisaliti, Guido-
dc.contributor.authorMiniutti, Giovanni-
dc.contributor.authorElvis, Martin-
dc.contributor.authorFabbiano, Giuseppina-
dc.contributor.authorSalvati, Marco-
dc.contributor.authorBaldi, Alessandro-
dc.contributor.authorBraito, Valentina-
dc.contributor.authorBianchi, Stefano-
dc.contributor.authorMatt, Giorgio-
dc.contributor.authorReeves, James-
dc.contributor.authorSoria, Roberto-
dc.contributor.authorZezas, Andreas-
dc.date.accessioned2010-07-12T09:32:32Z-
dc.date.available2010-07-12T09:32:32Z-
dc.date.issued2009-05-01-
dc.identifier.issn0004-637X-
dc.identifier.urihttp://hdl.handle.net/2307/295-
dc.description.abstractWe present a complete analysis of the hard X-ray (2-10 keV) properties of the Seyfert galaxy NGC 1365, based on a 60 ks XMM-Newton observation performed in 2004 January. The two main results are as follows. (1) We detect an obscuring cloud with N-H similar to 3.5 x 10(23) cm(-2) crossing the line of sight in similar to 25 ks. This implies a dimension of the X-ray source not larger than a few 1013 cm and a distance of the obscuring cloud of the order of 1016 cm. Adopting the black hole mass M-BH estimated from the M-BH-velocity dispersion relation, the source size is D-S < 20R(G) and the distance and density of the obscuring clouds are R similar to 3000-10,000R(G) and n similar to 10(10) cm(-3), i.e., typical values for broad-line region clouds.(2) An iron emission line with a relativistic profile is detected with high statistical significance. A time-integrated fit of the line+continuum reflection components suggests a high iron abundance(approximately three times solar) and an origin of these components in the inner part (within similar to 10R(G)) of the accretion disk, in agreement with the small source size inferred from the analysis of the absorption variability.en
dc.language.isoenen
dc.publisherIOP Publishingen
dc.relation.ispartofAstrophysical Journalen
dc.rightsThe American Astronomical Societyen
dc.subjectACTIVE GALACTIC NUCLEIen
dc.subjectSUPERMASSIVE BLACK-HOLESen
dc.subjectPHOTON IMAGINGen
dc.subjectCAMERAen
dc.subjectX-RAY-SPECTRUMen
dc.subjectXMM-NEWTONen
dc.subjectSEYFERT-GALAXIESen
dc.subjectCOMPTON-THINen
dc.subjectVARIABILITYen
dc.subjectREFLECTIONen
dc.subjectLUMINOSITYen
dc.titleVariable partial covering and a relativistic iron line in NGC 1365en
dc.typeArticleen
dc.subject.miurSettori Disciplinari MIUR::Scienze fisiche::ASTRONOMIA E ASTROFISICAen
dc.subject.isicruiCategorie ISI-CRUI::Scienze fisiche::Physicsen
dc.subject.anagraferoma3Scienze fisicheen
dc.relation.volumenumber696en
dc.relation.pagenumber160-171en
dc.identifier.doi10.1088/0004-637X/696/1/160-
dc.relation.issuenumber1en
item.languageiso639-1other-
item.fulltextWith Fulltext-
item.grantfulltextrestricted-
Appears in Collections:A - Articolo su rivista
X_Dipartimento di Fisica 'Edoardo Amaldi'
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