X-Ray Observations of Planetary Nebulae with Binary Nuclei
Abstract
Einstein and EXOSAT satellite observations of X-ray emission from the planetary nebulae A63 and LoTr 5 are reviewed. Both of these systems contain binary central stars. No flux was detected from A63 (central star UU Sge). LoTr 5 (central star IN Com) is a previously unreported X-ray emitter; it showed no statistically significant X-ray variability. Three models for the source of the X-ray emission in such systems are considered in the light of these and previous results.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- October 1992
- DOI:
- Bibcode:
- 1992ApJ...397..534A
- Keywords:
-
- Binary Stars;
- Planetary Nebulae;
- X Ray Stars;
- Astronomical Models;
- Exosat Satellite;
- Spaceborne Astronomy;
- Astrophysics;
- ISM: PLANETARY NEBULAE: GENERAL;
- X-RAYS: STARS