X-Ray Imaging of Galactic Supernova Remnant G299.2-2.9
Abstract
We present images of Galactic supernova remnant (SNR) G299.2-2.9 obtained from data collected from a 640 ks exposure with the ACIS-I array on board the Chandra X-Ray Observatory. For the first time, we resolve the entire SNR, including the complete faint central nebula region which is composed of metal-rich ejecta, using Chandra high-resolution imaging spectroscopy. Two previously unobserved, very faint shell-like structures are detected along the northern and southern ends of the SNR, each extending past the diffuse emission that surrounds the bright shell. We present hardness ratio maps and equivalent width images from emission lines of several elements to identify spatial variations in the electron temperature and line strengths throughout the SNR. We discuss some preliminary results from our spectral analysis of several sub-regions of metal-rich ejecta and shocked ambient material.
- Publication:
-
American Astronomical Society Meeting Abstracts #219
- Pub Date:
- January 2012
- Bibcode:
- 2012AAS...21923914P