EXOSAT observations of Hercules X-1.
Abstract
The extensive Exosat observations of the binary neutron star Her X-1 are summarized. One of the primary aims of these observations was to study systematically the variations of the observable parameters throughout the 35-day cycle of Her X-1. The evidence deduced from the Exosat observations of the pulse shape variations throughout the 35-day cycle supports the neutron star precession models. Exosat data regarding the behavior of the reprocessing regions throughout the 35-day cycle and the ensuing models are summarized. The implications of the Exosat measurements of the eclipse egresses are discussed with regard to the accretion disk and HZ-Her, the binary companion.
- Publication:
-
Memorie della Societa Astronomica Italiana
- Pub Date:
- 1988
- Bibcode:
- 1988MmSAI..59..169O
- Keywords:
-
- Hercules Nova;
- Light Curve;
- Neutron Stars;
- Stellar Magnetic Fields;
- X Ray Binaries;
- Companion Stars;
- Eclipsing Binary Stars;
- Exosat Satellite;
- Magnetic Flux;
- Periodic Variations;
- Astrophysics