EUROPEAN SPACE AGENCY

IGR J17497-2821: a new X-ray nova

DOI: 10.1051/0004-6361:20066520 Bibcode: 2007A&A...461L..17W

Paltani, S.; Gehrels, N.; Walter, R.; Carrier, F.; Kuulkers, E.; Produit, N.; Beckmann, V.; Lubiński, P.; Zurita, J.; Blecha, A.; Cherix, M.

Switzerland, Poland, France, Spain, United States, Belgium

Abstract

Context: A new hard X-ray transient has been discovered by INTEGRAL on 2006 Sep. 17 at 1 degree from the Galactic Centre.
Aims: INTEGRAL, Swift/XRT and optical photometric observations are used to characterize IGR J17497-2821 and to unveil its nature.
Methods: The X-ray position has been refined to arcsec level through a study of the optical variability of the possible counterparts. Hard X-ray variability and spectroscopy are used to determine the nature of the source outburst.
Results: IGR J17497-2821 is a new X-ray Nova in low-hard state, probably a new Black-Hole Candidate.

2007 • Astronomy and Astrophysics
INTEGRAL 9
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