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Monitoring des binaires X et des novae avec le Burst Alert Telescope à board du satellite Swift

Abstract : The Burst Alert Telescope (BAT) on board the Swift satellite is a very useful tool for hard X/gamma-ray astronomy. Thanks to its good sensitivity, huge field of view, and pointing strategy covering all the sky, BAT is a suitable instrument to monitor known hard X-ray sources as well as to catch and study new transients. In this thesis, new procedures to analyse the BAT survey data are described with details and the first astrophysical results on galactic accreting sources discussed. Three X-ray binaries were observed and studied: the microquasar GRO J1655-40 during its 2005 outburst, the SFXT IGR J08408-4503 during its third recorded outburst and the symbiotic LMXB 4U 1954+319. A search for prompt gamma-ray emission due to downgraded decay of radioactive elements from novae was also performed. The emission of RS Oph, possibly due to shock heating, led to a detection. The probability of detecting a nova during the Swift lifetime was estimated using a Monte Carlo approach.
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https://tel.archives-ouvertes.fr/tel-00268322
Contributor : Williams Exbrayat <>
Submitted on : Monday, March 31, 2008 - 4:44:23 PM
Last modification on : Thursday, October 15, 2020 - 4:07:32 AM
Long-term archiving on: : Thursday, May 20, 2010 - 10:44:34 PM

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  • HAL Id : tel-00268322, version 1

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Fabio Senziani. Monitoring des binaires X et des novae avec le Burst Alert Telescope à board du satellite Swift. Astrophysique [astro-ph]. Université Paul Sabatier - Toulouse III, 2008. Français. ⟨tel-00268322⟩

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