Multi-wavelength analysis of supernova remnant MSH11-61A
Abstract
Due to its centrally bright X-ray morphology and limb brightened radio profile, supernova remnant (SNR) MSH11-61A (G290.1-0.8) is classified as mixed morphology. The evolutionary sequence which leads to this centrally bright X-ray morphology is not well understood and currently different models can only explain some of the features seen in individual cases. In this analysis we present a study of MSH11-61A using archival Suzaku data. Our preliminary results indicate enhanced abundances, as previously suggested by ASCA observations and we derive the associated age, energy and ambient density of the remnant using models that we constructed in an attempt to reproduce the observed X-ray properties. Additionally, MSH11-61A is thought to be interacting with a molecular cloud towards the west/south west of the remnant. As observations of thermal and non-thermal emission of SNRs have provided increasing support in favour of cosmic rays being accelerated at the shock front of the remnant, SNRs known to be interacting with molecular clouds provide an effective target for detecting and studying gamma-rays. Using 64 months of Fermi-LAT gamma-ray data, we perform a spatial and spectral analysis of the gamma-ray emission in the region of this remnant, allowing us to constrain the origin of the detected emission.
- Publication:
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American Astronomical Society Meeting Abstracts #224
- Pub Date:
- June 2014
- Bibcode:
- 2014AAS...22441205A