Computer Science
Scientific paper
Oct 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004xmm..prop..203w&link_type=abstract
XMM-Newton Proposal ID #03061719
Computer Science
White Dwarf Binaries, Neutron Star Binaries, Cataclysmic Variables, Ulxs, Black Holes, Igr J18539+0727, Igr J18490-0000, Igr J18483-0311, Igr J18450-0435, Igr J18325-0756, Igr J17091-3624, Igr J17285-2922, Igr J17254-3257, Igr J17200-3116, Igr J16558-5203, Igr J11305-6256, Igr J12349-6433, Xmm-Newton Proposal 03061719
Scientific paper
To date more than 40 new bright hard X-ray Galactic plane sources have been discovered with INTEGRAL, and 10 of them have follow-up observations with XMM-Newton or Chandra. In most cases, the X-ray data exhibit slow pulsations, and the absorbing column density appear much larger than expected in the Galaxy or in front of the companion star. Many of those sources are persistent and seem to belong to a new class of HMXB, with a slow pulsar orbiting in a dense circumstellar material or within the companion stellar envelope itself. The goal of this proposal is twofold. We propose (1) to observe several additional persistent new INTEGRAL sources and (2) to study more in depth a few already studied sources.
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