High resolution X-ray spectra of supernova remnants
Abstract
The paper gives a status report of the work on supernova remnants (SNRs) that the authors have been carrying out with the X-ray data from the Focal Plane Crystal Spectrometer on the Einstein Observatory. The reasonably high spectral resolution of the instrument allows the authors to apply plasma diagnostic techniques similar to those used to study laboratory plasmas and the solar corona. Although the authors are limited by sensitivity and by the necessity of measuring lines one at a time, they have acquired data on most of the brighter SNRs. First the authors address questions of elemental abundances, which inevitably includes the topic of nonequilibrium ionization, and then they review their data on the X-ray Doppler shifts in Cas A.
- Publication:
-
Supernova Remnants and their X-ray Emission
- Pub Date:
- 1983
- Bibcode:
- 1983IAUS..101..205C
- Keywords:
-
- Abundance;
- Astronomical Spectroscopy;
- Nonequilibrium Ionization;
- Supernova Remnants;
- X Ray Astronomy;
- Doppler Effect;
- Focal Plane Devices;
- High Resolution;
- Line Spectra;
- Oxygen Spectra;
- Spectral Energy Distribution;
- Astrophysics