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

Research output: Contribution to journalConference articlepeer-review


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.

Original languageEnglish
JournalProceedings of Science
StatePublished - 2011
EventINTEGRAL - A Science Workshop in Sardinia: The Extreme and Variable High Energy Sky, Extremesky 2011 - Cagliari, Italy
Duration: Sep 19 2011Sep 23 2011


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