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arXiv · 1207.3719

XMM-Newton observations of four high mass X-ray binaries and IGR J17348-2045

E. Bozzo·L. Pavan·C. Ferrigno·M. Falanga·S. Campana·S. Paltani·L. Stella·R. Walter
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Abstract

We present the results of the XMM-Newton observations of five hard X-ray emitters: IGR J08262-3736, IGR J17354-3255, IGR J16328-4726, SAX J1818.6-1703, and IGR J17348-2045. The first source is a confirmed supergiant high mass X-ray binary, the following two are candidates supergiant fast X-ray transients, SAX J1818.6-1703 is a confirmed supergiant fast X-ray transient and IGR J17348-2045 is one of the still unidentified objects discovered with INTEGRAL. The XMM-Newton observations permitted the first detailed soft X-ray spectral and timing study of IGR J08262-3736 and provided further support in favor of the association of IGR J17354-3255 and IGR J16328-4726 with the supergiant fast X-ray transients. SAX J1818.6-1703 was not detected by XMM-Newton, thus supporting the idea that this source reaches its lowest X-ray luminosity (~10^32 erg/s) around apastron. For IGR J17348-2045 we identified for the first time the soft X-ray counterpart and proposed the association with a close-by radio object, suggestive of an extragalactic origin.

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E. Bozzo, L. Pavan, C. Ferrigno, M. Falanga, S. Campana, S. Paltani, L. Stella, R. Walter. 2012-07-16. XMM-Newton observations of four high mass X-ray binaries and IGR J17348-2045. https://doi.org/10.1051/0004-6361/201218900

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