Cosmic rays acceleration at ultrarelativistic subshocks
arXiv:astro-ph/0403640 · doi:10.1093/pasj/56.5.923
Abstract
We present the model of cosmic rays acceleration at ultrarelativistic subshocks and confront it with the observations of gamma-ray bursts and blazars. We investigate cosmic rays acceleration in shocks with Lorentz factors in the range 3 - 40. We show that fluctuations of the magnetic field downstream of the shock do not play an important role in the acceleration process. Results of numerical simulations for shocks with considered Lorentz factors and perpendicular magnetic field inclinations are presented. We fit the derived particle energy spectral index dependence on fluctuations of the magnetic field upstream and Lorentz factor of the shock with a function.
6 pages with 6 figures, submitted to PASJ
References in corpus (5)
- Interpenetrating plasma shells: near-equipartition magnetic field generation and non-thermal particle acceleration
- Polarization of the prompt gamma-ray emission from the gamma-ray burst of 6 December 2002
- Particle Acceleration in Relativistic Jets due to Weibel Instability
- Particle transport in tangled magnetic fields and Fermi acceleration at relativistic shocks
- The Afterglow of GRB010222: A Case of Continuous Energy Injection