EXOSAT observations of two gamma-ray burst sources
Abstract
EXOSAT observations of the 19 Nov 1978 and 25 Mar 1979b gamma bursters are presented, for the 0.02-2.5 keV energy range. No source was detected in either case, leading to temperature upper limits for the neutron stars assumed to be present of 105-106 °K. Polar cap accretion rates are constrained to values of 10-12-10-18 Msolar/y km2. The EXOSAT non-detection of the source discovered by the Einstein satellite in the 19 Nov 1978 error box may be explained if the burster is more distant than about 1.5 kpc.
- Publication:
-
Advances in Space Research
- Pub Date:
- 1986
- DOI:
- Bibcode:
- 1986AdSpR...6d..65B
- Keywords:
-
- Exosat Satellite;
- Gamma Ray Bursts;
- Accretion Disks;
- Neutron Stars;
- Polar Caps;
- Stellar Mass Ejection;
- Stellar Temperature;
- X Ray Sources;
- Space Radiation