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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/2710
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dc.contributor.authorKaur, Ramanpreet-
dc.contributor.authorPaul, Biswajit-
dc.contributor.authorRaichur, Harsha-
dc.contributor.authorSagar, R.-
dc.date.accessioned2007-06-11T09:31:51Z-
dc.date.available2007-06-11T09:31:51Z-
dc.date.issued2007-05-10-
dc.identifier.citationAstrophysical Journal, 2007, Vol.660, p1409-1412en
dc.identifier.issn0004-637X-
dc.identifier.issn1538-4357(Online)-
dc.identifier.urihttp://hdl.handle.net/2289/2710-
dc.descriptionRestricted Access. An open-access version is available at arXiv.org. Articles older than 2 years are open to all at the journal site (alternative location)en
dc.description.abstractWe report the discovery of quasi-periodic oscillations (QPOs) in the high-mass X-ray binary (HMXB) pulsar XTE J0111.2-7317 during a transient outburst of the source in 1998 December. Using observations made with the Proportional Counter Array of the Rossi X-Ray Timing Explorer during the second peak and the declining phase of the outburst, we have discovered a QPO feature at a frequency of 1.27 Hz. We have ruled out the possibility that the observed feature could instead be from the neighboring bright X-ray pulsar SMC X-1. This is the highest frequency QPO ever detected in an HMXB pulsar. In the absence of a cyclotron absorption feature in the X-ray spectrum, the QPO, along with the pulse period and X-ray flux measurement, helps us to constrain the magnetic field strength of the neutron star.en
dc.format.extent183851 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherThe American Astronomical Societyen
dc.relation.urihttp://adsabs.harvard.edu/cgi-bin/bib_query?2007ApJ...660.1409Ken
dc.relation.urihttp://arxiv.org/abs/astro-ph/0703205en
dc.relation.urihttp://dx.doi.org/10.1086/513418en
dc.rights2007 American Astronomical Societyen
dc.subjectStars: Binaries: Generalen
dc.subjectStars: Pulsars: Individual: Alphanumeric: XTE J0111.2-7317en
dc.subjectStars: Neutron, X-Rays: Binariesen
dc.subjectX-rays: individual (XTE J0111.2-7317)en
dc.subjectX-Rays: Starsen
dc.titleQuasi-periodic oscillations in XTE J0111.2-7317: Highest frequency among the HMXB pulsarsen
dc.typeArticleen
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