Observing Supergiant Fast X-ray Transients in quiescence

Details Observing Supergiant Fast X-ray Transients in quiescence Observing Supergiant Fast X-ray Transients in quiescence

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007xmm..prop..145b&link_type=abstract

XMM-Newton Proposal ID #05547202

Physics

White Dwarf Binaries, Neutron Star Binaries, Cataclysmic Variables, Ulxs, Black Holes, Igr J17391-3021, Igr J16479-4514, Xmm-Newton Proposal Id #05547202

Scientific paper

Supergiant Fast X-ray Transients (SFXTs) are a new class of highly variable hard X-ray sources in our galaxy. We propose to perform the first detailed study of the quiescent state of two SFTXs by carrying out XMM observations of IGR J16479-4514 and XTE J1739-302 sources. We will search for pulsations, low-level flaring activity and column density variations, and measure the X-ray spectrum. We will address some key predictions of a recently proposed scenario in which accretion onto the neutron stars of SFXTs is gated by an extremely strong (magnetar-like) magnetic field. SFXTs might thus offer the first opportunity to detect magnetars hosted in binary star systems.

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