High-Energy Particles from γ-Ray Bursts
Abstract
The widely accepted interpretation of the phenomenology of γ-ray bursts (GRBs), bursts of 0.1 MeV-1 MeV photons lasting for a few seconds (see [1] for a review), is that the observable effects are due to the dissipation of the kinetic energy of a relativistically expanding wind, a "fireball", whose primal cause is not yet known (see [2,3] for reviews). The recent detection of "afterglows", delayed low energy (X-ray to radio) emission of GRBs (see [4] for review), confirmed the cosmological origin of the bursts, through the redshift determination of several GRB host-galaxies, and confirmed standard model predictions of afterglows that result from the collision of an expanding fireball with its surrounding medium (see [5] for review). In this review, the production in GRB fireballs of γ-rays, high-energy cosmic-rays and neutrinos is discussed in the light of recent GRB and ultra-high-energy cosmic-ray observations.Based on lectures given at the ICTP Summer School on Astroparticle Physics and Cosmology (ICTP, Trieste Italy, June 2000), and at the VI Gleb Wataghin School on High Energy Phenomenology (UNICAMP, Campinas Brazil, July 2000).
- Publication:
-
Physics and Astrophysics of Ultra-High-Energy Cosmic Rays
- Pub Date:
- 2001
- DOI:
- 10.48550/arXiv.astro-ph/0103186
- arXiv:
- arXiv:astro-ph/0103186
- Bibcode:
- 2001LNP...576..122W
- Keywords:
-
- Astrophysics;
- High Energy Physics - Phenomenology
- E-Print:
- 33 pages. Based on lectures given at the ICTP Summer School (ICTP, Italy, June 2000), and at the VI Gleb Wataghin School (UNICAMP, Brazil, July 2000)