Collisionless Shocks -- Magnetic Field Generation and Particle Acceleration
Astrophysics
2007-05-23 v1
Abstract
We present numerical results from plasma particle simulations of collisionless shocks and ultra-relativistic counter-streaming plasmas. We demonstrate how the field-particle interactions lead to particle acceleration behind the shock-front. Further, we demonstrate how ultra relativistic counter-streaming plasmas create large scale patchy magnetic field structures and that these field structures propagate down-stream of the shock front. These results may help explain the origin of the magnetic fields and accelerated electrons responsible for afterglow synchrotron radiation from gamma ray bursts.
Cite
@article{arxiv.astro-ph/0303360,
title = {Collisionless Shocks -- Magnetic Field Generation and Particle Acceleration},
author = {J. Trier Frederiksen and C. B. Hededal and T. Haugboelle and A. Nordlund},
journal= {arXiv preprint arXiv:astro-ph/0303360},
year = {2007}
}
Comments
Proceedings from 1st NBSI on "Beams and Jets in Gamma Ray Bursts", held at NBIfAFG/NORDITA, Copenhagen, Denmark, August, 2002