Supergiant Fast X-ray Transients: New Candidates and Characterization of Quiescence

Details Supergiant Fast X-ray Transients: New Candidates and Characterization of Quiescence Supergiant Fast X-ray Transients: New Candidates and Characterization of Quiescence

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006cxo..prop.2140s&link_type=abstract

Chandra Proposal ID #08400768

Computer Science

Chandra Proposal Id #08400768

Scientific paper

Supergiant fast x-ray transients (SFXTs) are a recently-discovered class of high-mass x-ray binary with extremely short, hard x-ray outbursts (lasting for hours) and blue supergiant companions. They are difficult to discover, so the class has only now begun to grow, based on monitoring of the Galactic plane by INTEGRAL and RXTE. Some of the systems contain pulsars; perhaps all contain neutron stars. Very little is known about the emission outside of outburst. Here we propose a systematic study of emission in quiescence (or at least in intervals chosen at random, which might also contain outbursts). We also propose brief pointings to discover or confirm the counterparts to several systems which are candidates for the SFXT class.

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