The Energy of Gamma-Ray Bursts
| dc.creator | Piran, Tsvi | |
| dc.date | 2001-11-15 | |
| dc.date.accessioned | 2026-07-07T02:01:23Z | |
| dc.date.available | 2026-07-07T02:01:23Z | |
| dc.description | The energy of a Gamma-Ray Burst is one of the most interesting factors that can help determining the origin of these mysterious explosions. After the discovery that GRBs are cosmological it was thought, for a while that they are standard candles releasing $\sim 10^{51}$ergs. Redshift measurements that followed the discovery of GRB afterglow revealed that GRBs are (i) further than what was initially believed and (ii) have a very wide luminosity function. Some bursts revealed an enormous energy release with a record estimate of $ 1.4 \times 10^{54}$ergs for GRB990123. The energy budget was stretched even further when it was suggested that the conversion efficiency of producing gamma-rays is low. The realization that GRBs are beamed changed this perspective and brought the energy budget of GRBs down back to a "modest" $\sim 5 \times 10^{50}$ergs. I discuss here various estimates showing that GRB energy is narrowly distributed and discuss the implications of this conclusion to GRB models. | |
| dc.description | Talk given at the j. van Paradijs Memorial Symposium, June 6-8 Amsterdam | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0111314 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0111314 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/3729 | |
| dc.subject | Astrophysics | |
| dc.title | The Energy of Gamma-Ray Bursts | |
| dc.type | text |