The accretion environment in Vela X-1 during a flaring period using XMM-Newton

Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10045/36200
Registro completo de metadatos
Registro completo de metadatos
Campo DCValorIdioma
dc.contributorAstronomía y Astrofísicaes
dc.contributor.authorMartínez Núñez, Silvia-
dc.contributor.authorTorrejon, Jose M.-
dc.contributor.authorKühnel, Matthias-
dc.contributor.authorKretschmar, Peter-
dc.contributor.authorStuhlinger, Martin-
dc.contributor.authorRodes Roca, José Joaquín-
dc.contributor.authorFürst, Felix-
dc.contributor.authorKreykenbohm, Ingo-
dc.contributor.authorMartin-Carrillo, Antonio-
dc.contributor.authorPollock, Andy-
dc.contributor.authorWilms, Jörn-
dc.contributor.otherUniversidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señales
dc.date.accessioned2014-03-20T12:32:26Z-
dc.date.available2014-03-20T12:32:26Z-
dc.date.issued2014-03-12-
dc.identifier.citationAstronomy & Astrophysics. 2014, 563: A70. doi:10.1051/0004-6361/201322404es
dc.identifier.issn0004-6361 (Print)-
dc.identifier.issn1432-0746 (Online)-
dc.identifier.urihttp://hdl.handle.net/10045/36200-
dc.description.abstractWe present analysis of 100 ks contiguous XMM-Newton data of the prototypical wind accretor Vela X-1. The observation covered eclipse egress between orbital phases 0.134 and 0.265, during which a giant flare took place, enabling us to study the spectral properties both outside and during the flare. This giant flare with a peak luminosity of 3.92+0.42-0.09 × 1037 erg s-1 allows estimates of the physical parameters of the accreted structure with a mass of ~1021 g. We have been able to model several contributions to the observed spectrum with a phenomenological model formed by three absorbed power laws plus three emission lines. After analysing the variations with orbital phase of the column density of each component, as well as those in the Fe and Ni fluorescence lines, we provide a physical interpretation for each spectral component. Meanwhile, the first two components are two aspects of the principal accretion component from the surface of the neutron star, the third component seems to be the X-ray light echo formed in the stellar wind of the companion.es
dc.description.sponsorshipThis work was supported by the Spanish Ministerio de Ciencia e Innovación through the projects AYA2010-15431 and AIB2010DE-00054. It was partly supported by the Bundesministerium für Wirtschaft und Technologie under Deutsches Zentrum für Luft- und Raumfahrt grant 50OR1113. This research was made possible in part by a travel grant from the Deutscher Akademischer Austauschdienst. JJRR acknowledges the support by the Vicerectorat d’Investigació, Desenvolupament i Innovació de la Universitat d’Alacant under grant GRE12-35.es
dc.languageenges
dc.publisherEDP Scienceses
dc.rights© ESO, 2014es
dc.subjectX-rays: binarieses
dc.subjectPulsars: individual: Vela X-1es
dc.subject.otherFísica Aplicadaes
dc.titleThe accretion environment in Vela X-1 during a flaring period using XMM-Newtones
dc.typeinfo:eu-repo/semantics/articlees
dc.peerreviewedsies
dc.identifier.doi10.1051/0004-6361/201322404-
dc.relation.publisherversionhttp://dx.doi.org/10.1051/0004-6361/201322404es
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
Aparece en las colecciones:INV - Astronomía y Astrofísica - Artículos de Revistas

Archivos en este ítem:
Archivos en este ítem:
Archivo Descripción TamañoFormato 
Thumbnail2014_Martinez_etal_A&A.pdf1,07 MBAdobe PDFAbrir Vista previa


Todos los documentos en RUA están protegidos por derechos de autor. Algunos derechos reservados.