Astronomy and Astrophysics – Astrophysics
Scientific paper
2008-06-25
Astronomy and Astrophysics
Astrophysics
9 pages, 7 figures, accepted for publication in A&A
Scientific paper
10.1051/0004-6361:200809385
In the past few years, a new class of High Mass X-Ray Binaries (HMXRB) has been claimed to exist, the Supergiant Fast X-ray Transients (SFXT). These are X-ray binary systems with a compact companion orbiting a supergiant star which show very short and bright outbursts in a series of activity periods overimposed on longer quiescent periods. Only very recently the first attempts to model the behaviour of these sources have been published, some of them within the framework of accretion from clumpy stellar winds.Our goal is to analyze the properties of XTE J1739-302/IGR J17391-3021 within the context of the clumpy structure of the supergiant wind. We have used INTEGRAL and RXTE/PCA observations in order to obtain broad band (1-200 keV) spectra and light curves of XTE J1739-302 and investigate its X-ray spectrum and temporal variability. We have found that XTE J1739-302 follows a much more complex behaviour than expected. Far from presenting a regular variability pattern, XTE J1739-302 shows periods of high, intermediate, and low flaring activity.
Blay Pere
Kretschmar Peter
Kreykenbohm Ingo
Martinez-Nunez Silvia
Negueruela Ignacio
No associations
LandOfFree
INTEGRAL long-term monitoring of the Supergiant Fast X-ray Transient XTE J1739-302 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with INTEGRAL long-term monitoring of the Supergiant Fast X-ray Transient XTE J1739-302, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and INTEGRAL long-term monitoring of the Supergiant Fast X-ray Transient XTE J1739-302 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-162736