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IGR J17448-3232 point source: A blazar candidate viewed through the galactic centre?

  • Peter A. Curran
  • , S. Chaty
  • , J. A.Zurita Heras
  • , J. A. Tomsick
  • , T. J. Maccarone
  • Université Paris-Diderot
  • François Arago Centre
  • Sorbonne Univ.
  • University of California, Space Sciences Laboratory
  • School of Physics and Astronomy
  • University of Southampton

Résultats de recherche: Contribution à un journal › Article de conférence › Revue par des pairs

Résumé

The error region of the INTEGRAL source, IGRJ17448-3232, contains an X-ray point source at the edge of a ∼ 3′ radius extended X-ray source. It has been suggested that the extended emission is a young supernovae remnant (SNR) while the point source may be an isolated neutron star, associated with the SNR, that received a kick when the supernova occurred. We identify the infrared counterpart of the X-ray point source, visible from 2.2 μm to 24 μm, and place limits on the flux at longer wavelengths by comparison with radio catalogues. Multi-wavelength spectral modeling shows that the data are consistent with a reddened and absorbed single power law over five orders of magnitude in frequency. This implies non-thermal, possibly synchrotron emission that renders the previous identification of this source as a possible pulsar, and its association to the SNR, unlikely; we instead propose that the emission may be due to a blazar viewed through the plane of the Galaxy.

langue originaleAnglais
journalProceedings of Science
étatPublié - 1 déc. 2011
Modification externeOui
EvénementINTEGRAL - A Science Workshop in Sardinia: The Extreme and Variable High Energy Sky, Extremesky 2011 - Cagliari, Italie
Durée: 19 sept. 2011 → 23 sept. 2011

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