IGR J17448-3232 point source: A blazar candidate viewed through the galactic centre?
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 wit...
| Main Authors: | , , , , |
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| Format: | Conference Paper |
| Published: |
2011
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| Online Access: | http://pos.sissa.it/archive/conferences/147/058/Extremesky%202011_058.pdf http://hdl.handle.net/20.500.11937/29308 |
| _version_ | 1848752768652673024 |
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| author | Curran, Peter Chaty, S. Heras, J. Tomsick, J. Maccarone, T. |
| author_facet | Curran, Peter Chaty, S. Heras, J. Tomsick, J. Maccarone, T. |
| author_sort | Curran, Peter |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | 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. |
| first_indexed | 2025-11-14T08:13:52Z |
| format | Conference Paper |
| id | curtin-20.500.11937-29308 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:13:52Z |
| publishDate | 2011 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-293082017-01-30T13:11:54Z IGR J17448-3232 point source: A blazar candidate viewed through the galactic centre? Curran, Peter Chaty, S. Heras, J. Tomsick, J. Maccarone, T. 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. 2011 Conference Paper http://hdl.handle.net/20.500.11937/29308 http://pos.sissa.it/archive/conferences/147/058/Extremesky%202011_058.pdf fulltext |
| spellingShingle | Curran, Peter Chaty, S. Heras, J. Tomsick, J. Maccarone, T. IGR J17448-3232 point source: A blazar candidate viewed through the galactic centre? |
| title | IGR J17448-3232 point source: A blazar candidate viewed through the galactic centre? |
| title_full | IGR J17448-3232 point source: A blazar candidate viewed through the galactic centre? |
| title_fullStr | IGR J17448-3232 point source: A blazar candidate viewed through the galactic centre? |
| title_full_unstemmed | IGR J17448-3232 point source: A blazar candidate viewed through the galactic centre? |
| title_short | IGR J17448-3232 point source: A blazar candidate viewed through the galactic centre? |
| title_sort | igr j17448-3232 point source: a blazar candidate viewed through the galactic centre? |
| url | http://pos.sissa.it/archive/conferences/147/058/Extremesky%202011_058.pdf http://hdl.handle.net/20.500.11937/29308 |