Published 2007 | Version v1
Journal article

IGR j17497-2821: a new X-ray nova

  • 1. INTEGRAL Sci Data Ctr, CH-1290 Versoix, (Switzerland)
  • 2. Univ Genova, Observ Geneva, CH-1290 Sauverny, (Switzerland)
  • 3. Nicholas Copernicus Astron Ctr, PL-00716 Warsaw, (Poland)
  • 4. CEA Saclay, DSM, DAPNIA, SAp, F-91191 Gif Sur Yvette, (France)
  • 5. ESA, ESAC, ISOC, Madrid 28080, (Spain)
  • 6. NASA, Goddard Space Flight Ctr, Astrophys Sci Div, Greenbelt, MD 20771 (United States)
  • 7. Univ Maryland Baltimore Cty, Joint Ctr Astrophys, Baltimore, MD 21250 (United States)
  • 8. Katholieke Univ Leuven, Inst Sterrenkunde, B-3001 Louvain, (Belgium)

Description

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. (authors)

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Identifiers

Publishing Information

Journal Title
Astronomy and Astrophysics
Journal Volume
461
Journal Issue
no.2
Journal Page Range
p. L17-L20
ISSN
0004-6361

Optional Information

Notes
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