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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/4973
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dc.contributor.authorPaul, Biswajit-
dc.contributor.authorJaaffrey, S.N.A.-
dc.contributor.authorNaik, S.-
dc.contributor.authorAgrawal, P.C.-
dc.date.accessioned2012-07-17T04:46:50Z-
dc.date.available2012-07-17T04:46:50Z-
dc.date.issued2004-02-
dc.identifier.citationAstronomy and Astrophysics, 2004, Vol. 602, p913-917en
dc.identifier.issn0004-637X-
dc.identifier.issn1538-4357 (Online)-
dc.identifier.urihttp://hdl.handle.net/2289/4973-
dc.descriptionRestricted Access. An open-access version is available at arXiv.org (one of the alternative locations)en
dc.description.abstractWe report timing and spectral properties of the transient Be X-ray pulsar EXO 053109-6609.2, which was studied using observations made with the ASCA and BeppoSAX observatories. Although there must have been at least one spin-down episode of the pulsar since its discovery, the new pulse-period measurements show a monotonic spin-up trend since 1996. The pulse profile is found to have marginal energy dependence. There is also evidence for strong luminosity dependence of the pulse profile, which has a single-peaked profile at low luminosity that changes to a double-peaked profile at high luminosity. This suggests a change in the accretion pattern at certain luminosity levels. The X-ray spectrum is found to consist of a simple power law with a photon index in the range of 0.4-0.8. At high intensity levels the spectrum also shows the presence of a weak iron emission line.en
dc.language.isoenen
dc.publisherIOP Publishing Ltd.en
dc.relation.urihttp://adsabs.harvard.edu/abs/2004ApJ...602..913Pen
dc.relation.urihttp://arxiv.org/abs/astro-ph/0402127en
dc.relation.urihttp://dx.doi.org/10.1086/381161en
dc.rights2004 The American Astronomical Societyen
dc.titleTiming and spectral studies of the Transient X-Ray Pulsar EXO 053109-6609.2 with ASCA and BeppoSAXen
dc.typeArticleen
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