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arXiv · 1007.2495

Chandra localisation and optical/NIR follow-up of Galactic X-ray sources

E. M. Ratti·C. G. Bassa·M. A. P. Torres·L. Kuiper·J. C. A. Miller-Jones·P. G. Jonker
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Abstract

We investigate a sample of eleven Galactic X-ray sources recently discovered with INTEGRAL or RXTE with the goal of identifying their optical and/or near-infrared (NIR) counterpart. For this purpose new Chandra positions of nine objects are presented together with follow-up observations of all the targets in the optical and NIR. For the four sources IGR J16194-2810, IGRJ 16479-4514, IGR J16500-3307 and IGR J19308+530, the Chandra position confirms an existing association with an optical/NIR object, while for two sources (XTE J1716-389 and 18490-0000) it rules out previously proposed counterparts indicating new ones. In the case of IGR J17597-220, a counterpart is selected out of the several possibilities proposed in the literature and we present the first association with an optical/NIR source for J16293-4603 and XTE J1743-363. Moreover, optical/NIR observations are reported for XTE J1710-281 and IGR J17254-3257: we investigate the counterpart to the X-ray sources based on their XMM-Newton positions. We discuss the nature of each system considering its optical/NIR and X-ray properties.

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E. M. Ratti, C. G. Bassa, M. A. P. Torres, L. Kuiper, J. C. A. Miller-Jones, P. G. Jonker. 2010-07-15. Chandra localisation and optical/NIR follow-up of Galactic X-ray sources. https://doi.org/10.1111/j.1365-2966.2010.17252.x

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