Detections and Characteristics of Supernova Remnants in Eight Nearby Spiral and Irregular Galaxies
Abstract
We have conducted a multi-wavelength (X-ray, radio and optical) survey for supernova remnants (SNRs) in eight nearby spiral and irregular galaxies: NGC 247, NGC 300, NGC 2403, NGC 4449, NGC 5236 (M83), NGC 6946, NGC 7793 and IC 1613. Our own VLA radio observations have been examined in conjunction with archived ROSAT images (made with the PSPC and HRI instruments) and published optical data to search for SNRs in these galaxies. In addition to detecting SNRs, we have also examine dother characteristcs of these sources, including spectral energy distributions over all three wavelength domains and possible coincidences with historical supernovae (SNe) in these galaxies. Initial results and tentative conclusions are presented.
- Publication:
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American Astronomical Society Meeting Abstracts #192
- Pub Date:
- May 1998
- Bibcode:
- 1998AAS...192.5311P