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Journal articles
A Broadband Study of the Emission from the Composite Supernova Remnant MSH 11-62
Abstract : MSH 11-62 (G291.1-0.9) is a composite supernova remnant for which radio and X-ray observations have identified the remnant shell as well as its central pulsar wind nebula. The observations suggest a relatively young system expanding into a low density region. Here we present a study of MSH 11-62 using observations with the Chandra, XMM-Newton, and Fermi observatories, along with radio observations from the Australia Telescope Compact Array (ATCA). We identify a compact X-ray source that appears to be the putative pulsar that powers the nebula, and show that the X-ray spectrum of the nebula bears the signature of synchrotron losses as particles diffuse into the outer nebula. Using data from the Fermi LAT, we identify gamma-ray emission originating from MSH 11-62. With density constraints from the new X-ray measurements of the remnant, we model the evolution of the composite system in order to constrain the properties of the underlying pulsar and the origin of the gamma-ray emission.
http://hal.in2p3.fr/in2p3-00698357
Contributor : Nathalie Martin Connect in order to contact the contributor
Submitted on : Wednesday, May 16, 2012 - 2:34:06 PM
Last modification on : Tuesday, July 23, 2019 - 10:08:03 AM
Contributor : Nathalie Martin Connect in order to contact the contributor
Submitted on : Wednesday, May 16, 2012 - 2:34:06 PM
Last modification on : Tuesday, July 23, 2019 - 10:08:03 AM
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