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Unveiling the nature of IGR J17497-2821 using X-ray and near-infrared 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
  • INAF Istituto di Astrofisica Spaziale e Fisica Cosmica, Milan
  • Massachusetts Institute of Technology
  • Université Paris-Diderot
  • University of Geneva
  • Université de Genève
  • INAF-IASF
  • ISAS/JAXA
  • University of Ferrara
  • Friedrich-Alexander University (FAU) Erlangen-Nürnberg and Universitätsklinikum Erlangen

Résultats de recherche: Contribution à un journalArticleRevue par des pairs

10 Citations (Scopus)

Résumé

We report on a Chandra grating observation of the recently discovered hard X-ray transient IGR J17497-2821. The observation took place about 2 weeks after the discovery of the source 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, i.e., αJ2000 = 17h49m38.037s, δJ2000 = -28°21′17.37″ (with a 90% uncertainty of 0.6″). We also report on optical and near-infrared photometric follow-up observations based on this position. With the multiwavelength 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.

langue originaleAnglais
Pages (de - à)L109-L112
journalAstrophysical Journal
Volume657
Numéro de publication2 II
Les DOIs
étatPublié - 10 mars 2007
Modification externeOui

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