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dc.creatorGarcía, Federico-
dc.creatorZhang, Guobao-
dc.creatorMéndez, Mariano-
dc.date2015-06-05T20:25:18Z-
dc.date2015-06-05T20:25:18Z-
dc.date2013-03-
dc.date2016-03-30 10:35:44.97925-03-
dc.date.accessioned2019-04-29T15:51:09Z-
dc.date.available2019-04-29T15:51:09Z-
dc.date.issued2013-03-
dc.identifierGarcía, Federico; Zhang, Guobao ; Méndez, Mariano; The cooling phase of Type I X-ray bursts observed with RXTE in 4U 1820-30 does not follow the canonical F-T^4 relation; Wiley-blackwell Publishing, Inc; Monthly Notices Of The Royal Astronomical Society; 429; 3-2013; 3266-3271;-
dc.identifier0035-8711-
dc.identifierhttp://hdl.handle.net/11336/618-
dc.identifier.urihttp://rodna.bn.gov.ar:8080/jspui/handle/bnmm/303728-
dc.descriptionWe analysed the complete set of bursts from the neutron star low-mass X-ray binary 4U 1820-30 detected with the Rossi X-ray Timing Explorer (RXTE). We found that all are photospheric radius expansion bursts, and have similar duration, peak flux and fluence. From the analysis of time-resolved spectra during the cooling phase of the bursts, we found that the relation between the bolometric flux and the temperature is very different from the canonical F-T^4 relation which is expected if the apparent emitting area on the surface of the neutron star remains constant. The flux-temperature relation can be fitted using a broken power law, with indices v1 = 2.0 +/- 0.3 and v2 = 5.72 +/- 0.06. The departure from the F-T^4 relation during the cooling phase of the X-ray bursts in 4U 1820-30 could be due to changes in the emitting area of the neutron star while the atmosphere cools down, variations in the colour-correction factor due to chemical evolution, or the presence of a source of heat, e.g. residual hydrogen nuclear burning, playing an important role when the burst emission ceases.-
dc.descriptionFil: García, Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - La Plata. Instituto Argentino de Radioastronomia (i); Argentina;-
dc.descriptionFil: Zhang, Guobao. Kapteyn Astronomical Institute. University of Groningen; Holanda;-
dc.descriptionFil: Méndez, Mariano. Kapteyn Astronomical Institute. University of Groningen; Holanda;-
dc.formatapplication/pdf-
dc.formatapplication/pdf-
dc.languageeng-
dc.publisherWiley-blackwell Publishing, Inc-
dc.relationinfo:eu-repo/semantics/altIdentifier/url/http://mnras.oxfordjournals.org/content/429/4/3266-
dc.rightsinfo:eu-repo/semantics/openAccess-
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/-
dc.sourcereponame:CONICET Digital (CONICET)-
dc.sourceinstname:Consejo Nacional de Investigaciones Científicas y Técnicas-
dc.sourceinstacron:CONICET-
dc.subjectSTARS: INDIVIDUAL: 4U 1820-30-
dc.subjectSTARS: NEUTRON-
dc.subjectX-RAYS: BINARIES-
dc.subjectX-RAYS: BURSTS-
dc.subjectCiencias Naturales y Exactas-
dc.subjectCiencias Físicas-
dc.subjectAstronomía (incluye Astrofísica y Ciencias del Espacio)-
dc.titleThe cooling phase of Type I X-ray bursts observed with RXTE in 4U 1820-30 does not follow the canonical F-T^4 relation-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.typeinfo:ar-repo/semantics/articulo-
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