The supergiant fast X-ray transients XTE J1739-302 and IGR J08408-4503 in quiescence with XMM-Newton 

Author: Bozzo E.   Stella L.   Ferrigno C.   Giunta A.   Falanga M.   Campana S.   Israel G.   Leyder J. C.  

Publisher: Edp Sciences

E-ISSN: 1432-0746|519|issue|A6-A6

ISSN: 0004-6361

Source: Astronomy & Astrophysics, Vol.519, Iss.issue, 2010-09, pp. : A6-A6

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Abstract

Context. Supergiant fast X-ray transients are a subclass of high mass X-ray binaries that host a neutron star accreting mass from the wind of its OB supergiant companion. They are characterized by an extremely pronounced and rapid variability in X-rays, which still lacks an unambiguous interpretation. A number of deep pointed observations with XMM-Newton have been carried out to study the quiescent emission of these sources and gain insight into the mechanism that causes their X-ray variability.