Hunting the nature of IGR J17497-2821 with X-ray and NIR observations

A. Paizis; M. A. Nowak; S. Chaty; J. Rodriguez; T. J. -L. Courvoisier; M. Del Santo; K. Ebisawa; R. Farinelli; P. Ubertini; J. Wilms

doi:10.1086/513313

arXiv · astro-ph/0611344

Hunting the nature of IGR J17497-2821 with X-ray and NIR observations

A. Paizis·M. A. Nowak·S. Chaty·J. Rodriguez·T. J. -L. Courvoisier·M. Del Santo·K. Ebisawa·R. Farinelli·P. Ubertini·J. Wilms

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Abstract

We report on a Chandra grating observation of the recently discovered hard X-ray transient IGR J17497-2821. The observation took place about two weeks after the source discovery at a flux level of about 20 mCrab in the 0.8-8 keV range. We extracted the most precise X-ray position of IGR J17497-2821, RA=17 49 38.037, DEC= -28 21 17.37 (90% uncertainty of 0.6"). We also report on optical and near infra-red photometric follow-up observations based on this position. With the multi-wavelength information at hand, we discuss the possible nature of the source proposing that IGR J17497-2821 is a low-mass X-ray binary, most likely hosting a black hole, with a red giant K-type companion.

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A. Paizis, M. A. Nowak, S. Chaty, J. Rodriguez, T. J. -L. Courvoisier, M. Del Santo, K. Ebisawa, R. Farinelli, P. Ubertini, J. Wilms. 2007-02-01. Hunting the nature of IGR J17497-2821 with X-ray and NIR observations. https://doi.org/10.1086/513313

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