Temporal Studies of Supergiant Fast X-ray Transients

Sebastian Drave, Tony Bird, David J Clark, Vanessa McBride, Adam Hill, Vito Sguera, Simone Scaringi, Angela Bazzano, Lee Townsend
2011 Proceedings of 8th INTEGRAL Workshop "The Restless Gamma-ray Universe" — PoS(INTEGRAL 2010)   unpublished
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 (∼10 4 ). 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 ±
more » ... .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.
doi:10.22323/1.115.0117 fatcat:wacx2vilmngchl72g6sgmli2pu