Temporal studies of supergiant fast X-ray transients

Sebastian Drave, Antony Bird, David Clark, Vanessa McBride, Adam Hill, Vito Sguera, Simone Scaringi, Angela Bazzano, Lee Townsend

Research output: Contribution to journalConference articlepeer-review


SFXTs are a new class of HMXB unveiled by INTEGRAL. They are extreme systems characterised by very short outbursts (a few hours) and extreme X-ray luminosity dynamic ranges (∼ 104). Ten confirmed systems are currently known and have shown parallels with both Sg-XRBs and Be-XRBs. Temporal studies across all timescales are key to understanding both the place of SFXTs within the HMXB hierarchy and the accretion mechanisms at work within the objects. Here we present the discovery of a new 51.47 ± 0.02 day orbital period in the SFXT XTE J1739-302 using INTEGRAL observations. We also present a higher time resolution study of the SFXTs SAX J1818.6-1703, IGR J16479-4514 and IGR J16465-4507 using RXTE that shows newly discovered flaring activity.

Original languageEnglish
JournalProceedings of Science
StatePublished - 2010
Event8th INTEGRAL Workshop on the Restless Gamma-Ray Universe, INTEGRAL 2010 - Dublin Castle, Dublin, Ireland
Duration: Sep 27 2010Sep 30 2010


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