| INTEGRALPlanckGaiaPOLARCHEOPSEuclidATHENA |
| HEAVENSFACTCTALOFTSPICAJEM-EUSOXIPEeXTPTheseus |
| XRISMMAGBOUNDSMARTNet |
| ISDCCDCI |
| Data Centre for Astrophysics Astronomy Department of the University of Geneva |
IGR J11014-6103: a newly discovered pulsar wind nebula?
| To study the unidentified source IGR J11014-6103, we analyzed archival data from X-rays to the radio energy range spanning 30 years of observation. The analysis in soft X-rays revealed a 4-arcmin cometary-like tail with two brighter objects at one end of the extended emission. Based on the results of our spectral and timing analysis, we suggest that the source might be a pulsar wind nebula produced by a spinning neutron star (pulsar) advancing at high-velocity through the interstellar medium. These system are rare, and if confirmed, this would be the first detected with INTEGRAL. |
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ABSTRACT
Context: IGRJ11014-6103 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 first 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, and then use them to search for possible counterparts to the source in the optical, infra-red, radio and gamma-ray domain.
Results: Our analysis revealed 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.
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 first 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, and then use them to search for possible counterparts to the source in the optical, infra-red, radio and gamma-ray domain.
Results: Our analysis revealed 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.
XMM-Newton view of IGR J11014-6103.The contours underline the cometary-like tail extending for ~4 arcmin and the two brighter objects marked as 'N' and 'S'. The position, and relative uncertainties, of the INTEGRAL IBIS/ISGRI source, and of the Einstein and Swift sources inside the INTEGRAL error-circle are also marked. The Einstein and Swift sources are likely a blend of XMM sources N and S. Credits: ISDC |
| by Lucia Pavan on 2011-07-19 | >> INTEGRAL science results | >> All science results |
