The Implications of the Compton (GRO) Observations for Cosmological Gamma-Ray Bursts
Abstract
The BATSE observations (Fishman et al.; Meegan et al.) show that the angular distribution of gamma-ray sources in the sky is isotropic. These observations are shown to be consistent with a cosmological distribution of sources. In fact, the observed distribution of V/Vmax values is the one toward which a cosmological distribution converges. If there is even a weak cosmological time dependence of the event rate, then the bursts originate at modest z values. For flat cosmological models, this requires 10 exp 50 ergs or less. The energy and the observed event rate are in full agreement with the binary neutron star merger model.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- April 1992
- DOI:
- 10.1086/186345
- Bibcode:
- 1992ApJ...389L..45P
- Keywords:
-
- Binary Stars;
- Gamma Ray Bursts;
- Neutron Stars;
- Angular Distribution;
- Halos;
- Milky Way Galaxy;
- Astrophysics;
- COSMOLOGY: OBSERVATIONS;
- GAMMA RAYS: BURSTS