Supergiant Fast X-ray Transients: A common behaviour or a class of objects?

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dc.creatorNegueruela, Ignacio
dc.creatorSmith, David M.
dc.creatorTorrejon, Jose Miguel
dc.creatorReig, Pablo
dc.date2007-04-24
dc.date2007-05-10
dc.date.accessioned2026-07-07T08:56:19Z
dc.date.available2026-07-07T08:56:19Z
dc.descriptionINTEGRAL monitoring of the Galactic Plane is revealing a growing number of recurrent X-ray transients, characterised by short outbursts with very fast rise times (~ tens of minutes) and typical durations of a few hours. A substantial fraction of these sources are associated with OB supergiants and hence define a new class of massive X-ray binaries, which we call Supergiant Fast X-ray Transients. Characterisation of the astrophysical parameters of their counterparts is underway. So far, we have found a number of late O and early B supergiants of different luminosities at a large range of distances. Nothing in their optical properties sets them apart from classical Supergiant X-ray Binaries. On the other hand, there is now rather concluding evidence that persistent supergiant X-ray binaries also show fast outbursts. This suggests a continuum of behaviours between typical persistent supergiant systems and purely transient systems, but offers very little information about the physical causes of the outbursts.
dc.descriptionTo appear in ''Proceedings of the 6th Integral Workshop "The obscured Universe", Moscow, July 3-7 2006'' (replaced with refereed version 10 May 07). Best viewed in PDF format
dc.identifierhttps://arxiv.org/abs/0704.3224
dc.identifierhttp://arxiv.org/abs/0704.3224
dc.identifierESA SP-622, 255 (2008)
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/146569
dc.subjectAstrophysics
dc.titleSupergiant Fast X-ray Transients: A common behaviour or a class of objects?
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