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INTEGRAL observation of the X-ray burster KS 1741-293

G. De Cesare·A. Bazzano·G. Stratta·M. Del Santo·A. Tarana·P. Ubertini
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Abstract

KS 1741-293 was firstly detected in 1989 with the X-ray wide field camera TTM (3-10 keV) on board of the Rontgen-Kvant-Mir observatory. During these observations this source exhibited two X-ray bursts allowing to identify it as a neutron star in a Low mass X-ray Binary. During the BeppoSAX/WFC monitoring of the Galactic Centre Region, KS 1741-293 was also reported at a flux level of 6 mCrab in the 2-9 keV and 25 mCrab in the 9-25 keV energy range. Thanks to the deep and regular INTEGRAL observation of the Galactic Centre region, KS 1741-293 has been observed by the X-ray monitor JEM-X and the imager IBIS in a wide energy range, giving for the first time relevant information on its high energy behaviour. Furthermore, two X-ray bursts have been detected by JEM-X. We report on IBIS and JEM-X data analysis in terms of flux monitoring, spectral proprieties and bursts detection. The data reduction has been done with the most recent release of the standard analysis software (OSA 5.0).

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G. De Cesare, A. Bazzano, G. Stratta, M. Del Santo, A. Tarana, P. Ubertini. 2005-11-30. INTEGRAL observation of the X-ray burster KS 1741-293. https://arxiv.org/abs/astro-ph/0511828

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