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INTEGRAL observations of the peculiar BeX System SAX J2103.5+4545

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INTEGRAL observations of the peculiar BeX System SAX J2103.5+4545

dc.contributor.author	Blay Serrano, Pedro Jose
dc.contributor.author	Reig Torres, Pablo
dc.contributor.author	Martinez Nuñez, Silvia
dc.contributor.author	Camero Arranz, Ascensión
dc.contributor.author	Connell, Paul Henry
dc.contributor.author	Reglero Velasco, Victor
dc.date.accessioned	2010-06-29T10:55:30Z
dc.date.available	2010-06-29T10:55:30Z
dc.date.issued	2004
dc.identifier.citation	Blay Serrano, Pedro Jose ; Reig Torres, Pablo ; Martinez Nuñez, Silvia ; Camero Arranz, Ascensión ; Connell, Paul Henry ; Reglero Velasco, Victor, 2004, INTEGRAL observations of the peculiar BeX System SAX J2103.5+4545, Astronomy and Astrophysics, vol. 427, no. 1, p. 293-298	en
dc.identifier.uri	http://hdl.handle.net/10550/14002
dc.description.abstract	We present an INTEGRAL data analysis of the X-ray transient SAX J2103.5+4545 during two outbursts detected in December 2002. The INTEGRAL coordinates and error circle agree with the position of the recently proposed optical counterpart. A power-law plus cut-off model provided a good fit to the 4–150 keV spectrum yielding a photon index of 1.0±0.1, a cut-off energy Ecut = 7.6±2.0 keV and a folding energy Efold = 30.9±2.5 keV. The X-ray luminosity in the 4-150 keV energy range was found to be 6.0 × 1036 erg s−1, assuming a distance of 6.5 kpc. This luminosity, together with the derived photon index, indicate that the source is in a bright state. A 354.9 ± 0.5 second pulse period is measured. This value is significantly smaller than previous measurements, indicating a long-term spin-up episode.	en
dc.language.iso	en	en
dc.subject	Accretion ; Accretion disks ; Binaries ; Emission-line ; Be ; Pulsars : SAX J2103.5+4545 ; X-rays ; Binaries	en
dc.title	INTEGRAL observations of the peculiar BeX System SAX J2103.5+4545	en
dc.type	journal article	es_ES
dc.subject.unesco	UNESCO::ASTRONOMÍA Y ASTROFÍSICA	en
dc.subject.unesco	UNESCO::ASTRONOMÍA Y ASTROFÍSICA::Cosmología y cosmogonia	en
dc.identifier.doi	10.1051/0004-6361:20041214	en
dc.identifier.idgrec	011946	en
dc.type.hasVersion	VoR	es_ES
dc.identifier.url	http://www.aanda.org/articles/aa/pdf/2004/43/aa1214.pdf	en