Discovery of the infrared counterpart of CXOUJ174437.3-323222 in the field of IGR J17448-3232: a blazar candidate viewed through the Galactic Centre?
We present our near-infrared ESO-NTTKS band observations of the field of IGRJ17448-3232which show no extended emission consistent with the supernova remnant (SNR), but in whichwe identify a new counterpart, also visible in Spitzer images up to 24 µm, at the position of theX-ray point source, CXOUJ17...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
Wiley-Blackwell Publishing Ltd.
2011
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| Subjects: | |
| Online Access: | http://mnrasl.oxfordjournals.org/content/417/1/L26.full.pdf+html http://hdl.handle.net/20.500.11937/39816 |
| Summary: | We present our near-infrared ESO-NTTKS band observations of the field of IGRJ17448-3232which show no extended emission consistent with the supernova remnant (SNR), but in whichwe identify a new counterpart, also visible in Spitzer images up to 24 µm, at the position of theX-ray point source, CXOUJ174437.3-323222. Multiwavelength spectral modelling showsthat the data are consistent with a reddened and absorbed single power law over 5 orders ofmagnitude in frequency. This implies non-thermal, possibly synchrotron emission that rendersthe 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 theplane of the Galaxy. |
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