HEAO 1 A-2 Low-Energy Detector X-Ray Spectra of the Lupus Loop and SN 1006
Abstract
The Lupus Loop and SN 1006 were observed by the A-2 low-energy detector proportional counters on the HEAO 1 satellite as part of the all-sky survey. As a result of a major advance in understanding of detector response and background accurate analysis of the data has become possible. Soft X-ray spectra for both supernova remnants were constructed from the PHA data taken during the scanning observations. Single-temperature and two-temperature Raymond-Smith models were fitted to the observed spectra. In addition, power-law and power-law plus one-temperature models were fitted to the spectrum of SN 1006. Only two-component models provide an adequate description for both Lupus Loop and SN 1006 spectra. The temperatures, column densities, and emission measures are significantly more accurate than previous results.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- June 1991
- DOI:
- 10.1086/170111
- Bibcode:
- 1991ApJ...374..218L
- Keywords:
-
- Heao 1;
- Supernova Remnants;
- Supernovae;
- X Ray Sources;
- X Ray Spectra;
- Abundance;
- Astronomical Models;
- Spaceborne Astronomy;
- Stellar Spectra;
- Astrophysics;
- NEBULAE: SUPERNOVA REMNANTS;
- X-RAYS: SPECTRA