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INTEGRAL long-term monitoring of the supergiant fast X-ray transient XTE J1739-302

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INTEGRAL long-term monitoring of the supergiant fast X-ray transient XTE J1739-302

dc.contributor.author	Blay Serrano, Pedro Jose
dc.contributor.author	Martinez Nuñez, Silvia
dc.contributor.author	Negueruela, I.
dc.contributor.author	Pottschmidt, K.
dc.contributor.author	Smith, D. M.
dc.contributor.author	Torrejón, J. M.
dc.contributor.author	Reig, P.
dc.contributor.author	Kretschmar, P.
dc.contributor.author	Kreykenbohm, I.
dc.date.accessioned	2010-06-29T11:02:56Z
dc.date.available	2010-06-29T11:02:56Z
dc.date.issued	2008
dc.identifier.citation	Blay, P., Martínez-Núñez, S., Negueruela, I., Pottschmidt, K., Smith, D. M., Torrejón, J. M., Reig, P., Kretschmar, P. and Kreykenbohm, I. (2008): INTEGRAL long-term monitoring of the supergiant fast X-ray transient XTE J1739-302, núm. 489, vol. 2, pp. 669-676	en
dc.identifier.uri	http://hdl.handle.net/10550/14012
dc.description.abstract	Context. In the past few years, a new class of high mass X-ray binaries (HMXRB) has been claimed to exist, the supergiant fast X-ray transients (SFXT). These are X-ray binary systems with a compact companion orbiting a supergiant star which show very short and bright outbursts in a series of activity periods overimposed on longer quiescent periods. Only very recently the first attempts to model the behaviour of these sources have been published, some of them within the framework of accretion from clumpy stellar winds. Aims. Our goal is to analyze the properties of XTE J1739-302/IGR J17391-3021 within the context of the clumpy structure of the supergiant wind. Methods. We have used INTEGRAL and RXTE/PCA observations to obtain broad band (1–200 keV) spectra and light curves of XTE J1739-302 and investigate its X-ray spectrum and temporal variability. Results. We have found that XTE J1739-302 follows a much more complex behaviour than expected. Far from presenting a regular variability pattern, XTE J1739-302 shows periods of high, intermediate, and low flaring activity.	en
dc.language.iso	en	en
dc.subject	Binaries : close; Supergiants; X-rays : binaries	en
dc.title	INTEGRAL long-term monitoring of the supergiant fast X-ray transient XTE J1739-302	en
dc.type	journal article	es_ES
dc.subject.unesco	UNESCO::ASTRONOMÍA Y ASTROFÍSICA::Cosmología y cosmogonia::Fuentes de Rayos X	en
dc.subject.unesco	UNESCO::ASTRONOMÍA Y ASTROFÍSICA::Otras especialidades astronómicas	en
dc.identifier.doi	10.1051/0004-6361:200809385	en
dc.identifier.idgrec	046187	en
dc.type.hasVersion	VoR	es_ES
dc.identifier.url	http://www.aanda.org/index.php?option=com_article&access=doi&doi=10.1051/0004-6361:200809385&Itemid=129	en