A BROADBAND STUDY OF THE EMISSION FROM THE COMPOSITE SUPERNOVA REMNANT MSH 11-62

Patrick Slane, John P. Hughes, Tea Temim, Romain Rousseau, Daniel Castro, Dillon Foight, B. M. Gaensler, Stefan Funk, Marianne Lemoine-Goumard, Joseph D. Gelfand, David A. Moffett, Richard G. Dodson (+1 others)
2012 Astrophysical Journal  
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
more » ... 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.
doi:10.1088/0004-637x/749/2/131 fatcat:2t3qwifvbva7jchskpucmghzf4