IGR J11014-6103: a newly discovered pulsar wind nebula?
Abstract
Context. IGR J11014-6103 is one of the still unidentified hard X-ray INTEGRAL sources, reported for the first time in the 4th IBIS/ISGRI catalog.
Aims: We investigated the nature of IGR J11014-6103 by carrying out a multiwavelength analysis of the available archival observations performed in the direction of the source.
Methods: We present the results of the timing and spectral analysis of all the X-ray observations of IGR J11014-6103 carried out with ROSAT, ASCA, Einstein, Swift, and XMM-Newton. We used them to search for possible counterparts to the source in the optical, infrared, radio and γ-ray domain.
Results: Our analysis reveals that IGR J11014-6103 is comprised of three different X-ray emitting regions: a point-like source, an extended object, and a cometary-like "tail" (~4 arcmin). A possible radio counterpart positionally coincident with the source was also identified.
Conclusions: Based on these results, we suggest that the emission from IGR J11014-6103 is generated by a pulsar wind nebula produced by a high-velocity pulsar. IGR J11014-6103 might be the first of these systems detected with INTEGRAL IBIS/ISGRI.
- Publication:
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Astronomy and Astrophysics
- Pub Date:
- September 2011
- DOI:
- 10.1051/0004-6361/201117379
- arXiv:
- arXiv:1107.2832
- Bibcode:
- 2011A&A...533A..74P
- Keywords:
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- stars: individual: IGR J11014-6103;
- stars: mass-loss;
- stars: neutron;
- Astrophysics - High Energy Astrophysical Phenomena
- E-Print:
- A&