Chandra observations of the mixed-morphology remnant MSH 11-61A
Abstract
We present results of a spectral investigation of the Galactic supernova remnant (SNR) MSH 11-61A (G290.1-0.8) with the Chandra X-ray Observatory. This remnant is a member of mixed-morphology class of SNRs identified by a shell morphology in the radio band and centrally brightened thermal emission in the X-ray band, with little or no shell brightening. The evolutionary characteristics which lead to mixed-morphology X-ray properties in SNRs are not well understood, and different models are used to explain individual cases. Our preliminary Chandra results indicate enhanced abundances in MSH 11-61A, previously suggested by ASCA observations. We discuss the implications which these results have on the models for mixed-morphology SNRs.
- Publication:
-
35th COSPAR Scientific Assembly
- Pub Date:
- 2004
- Bibcode:
- 2004cosp...35.3832L