New results with swift on supergiant fast X-ray transients

L. Sidoli, P. Romano, L. Ducci, A. Paizis, S. Vercellone, G. Cusumano, V. La Parola, V. Mangano, J. A. Kennea, D. N. Burrows, H. A. Krimm, N. Gehrels, V. Sguera, A. Bazzano

Research output: Contribution to journalConference articlepeer-review


We report here on the most recent results obtained on a new class of High Mass X-ray Binaries, the Supergiant Fast X-ray Transients. Since October 2007, we have been performing a monitoring campaign with Swift of four SFXTs (IGR J17544-2916, XTE J1739-302, IGR J16479-4514 and the X-ray pulsar AX J1841.0-0536) for about 1-2 ks, 2-3 times per week, allowing us to derive the previously unknown long term properties of this new class of sources (their duty cycles, spectral properties in outbursts and out-of-outbursts, temporal behaviour). We also report here on additional Swi f t observations of two SFXTs which are not part of the monitoring: IGR J18483- 0311 (observed with Swi f t/XRT during a whole orbital cycle) and SAX J1818.6-1703 (observed for the first time simultaneously in the energy range 0.3-100 keV during a bright flare).

Original languageEnglish (US)
JournalProceedings of Science
StatePublished - 2009
EventScience Workshop to Celebrate 7 Years of Integral - The Extreme Sky: Sampling the Universe above 10 keV, Extremesky 2009 - Otranto, Lecce, Italy
Duration: Oct 13 2009Oct 17 2009

All Science Journal Classification (ASJC) codes

  • General


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