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 |
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Wiley-Blackwell Publishing Ltd.
2011
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| Online Access: | http://mnrasl.oxfordjournals.org/content/417/1/L26.full.pdf+html http://hdl.handle.net/20.500.11937/39816 |
| _version_ | 1848755696557883392 |
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| author | Curran, Peter Chaty, S. Zurita Heras, J. Tomsick, J. Maccarone, T. |
| author_facet | Curran, Peter Chaty, S. Zurita Heras, J. Tomsick, J. Maccarone, T. |
| author_sort | Curran, Peter |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | 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. |
| first_indexed | 2025-11-14T09:00:25Z |
| format | Journal Article |
| id | curtin-20.500.11937-39816 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:00:25Z |
| publishDate | 2011 |
| publisher | Wiley-Blackwell Publishing Ltd. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-398162017-09-13T14:30:06Z Discovery of the infrared counterpart of CXOUJ174437.3-323222 in the field of IGR J17448-3232: a blazar candidate viewed through the Galactic Centre? Curran, Peter Chaty, S. Zurita Heras, J. Tomsick, J. Maccarone, T. radiation mechanisms: non-thermal X-rays: individual: IGRJ17448-3232 infrared: general X-rays: individual: - CXOUJ174437.3-323222 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. 2011 Journal Article http://hdl.handle.net/20.500.11937/39816 10.1111/j.1745-3933.2011.01113.x http://mnrasl.oxfordjournals.org/content/417/1/L26.full.pdf+html Wiley-Blackwell Publishing Ltd. unknown |
| spellingShingle | radiation mechanisms: non-thermal X-rays: individual: IGRJ17448-3232 infrared: general X-rays: individual: - CXOUJ174437.3-323222 Curran, Peter Chaty, S. Zurita Heras, J. Tomsick, J. Maccarone, T. Discovery of the infrared counterpart of CXOUJ174437.3-323222 in the field of IGR J17448-3232: a blazar candidate viewed through the Galactic Centre? |
| title | Discovery of the infrared counterpart of CXOUJ174437.3-323222 in the field of IGR J17448-3232: a blazar candidate viewed through the Galactic Centre? |
| title_full | Discovery of the infrared counterpart of CXOUJ174437.3-323222 in the field of IGR J17448-3232: a blazar candidate viewed through the Galactic Centre? |
| title_fullStr | Discovery of the infrared counterpart of CXOUJ174437.3-323222 in the field of IGR J17448-3232: a blazar candidate viewed through the Galactic Centre? |
| title_full_unstemmed | Discovery of the infrared counterpart of CXOUJ174437.3-323222 in the field of IGR J17448-3232: a blazar candidate viewed through the Galactic Centre? |
| title_short | Discovery of the infrared counterpart of CXOUJ174437.3-323222 in the field of IGR J17448-3232: a blazar candidate viewed through the Galactic Centre? |
| title_sort | discovery of the infrared counterpart of cxouj174437.3-323222 in the field of igr j17448-3232: a blazar candidate viewed through the galactic centre? |
| topic | radiation mechanisms: non-thermal X-rays: individual: IGRJ17448-3232 infrared: general X-rays: individual: - CXOUJ174437.3-323222 |
| url | http://mnrasl.oxfordjournals.org/content/417/1/L26.full.pdf+html http://hdl.handle.net/20.500.11937/39816 |