Abstract
The beaming angle ζm is the main uncertainty in gamma ray burst energy requirements today. We summarize predictions for the light curves of beamed bursts, and model the R band light curve of GRB 970508 to derive ζm ≳ 30°. This yields an irreducible minimum energy requirement of 3.4 1049 ergs to power the afterglow alone.
Original language | English (US) |
---|---|
Pages (from-to) | 539-540 |
Number of pages | 2 |
Journal | Astronomy and Astrophysics Supplement Series |
Volume | 138 |
Issue number | 3 |
DOIs | |
State | Published - Sep 1999 |
Externally published | Yes |
Keywords
- Gamma-ray: bursts
ASJC Scopus subject areas
- General Physics and Astronomy