Transient outburst mechanisms in Supergiant Fast X-ray Transients

Details Transient outburst mechanisms in Supergiant Fast X-ray Transients Transient outburst mechanisms in Supergiant Fast X-ray Transients

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009adspr..43.1464s&link_type=abstract

Advances in Space Research, Volume 43, Issue 9, p. 1464-1470.

Physics

17

Scientific paper

The recent discovery of a new class of recurrent and fast X-ray transient sources, the Supergiant Fast X-ray Transients, poses interesting questions on the possible mechanisms responsible for their transient X-ray emission. The association with blue supergiants, the spectral properties similar to those of accreting pulsars and the detection, in a few cases, of X-ray pulsations, confirm that these transients are High Mass X-ray Binaries. I review the different mechanisms proposed to explain their transient outbursts and the link to persistent wind accretors. I discuss the different models in light of the new observational results coming from an on-going monitoring campaign of four Supergiant Fast X-ray Transients with Swift.

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