Relativistic collisionless shocks: shock build-up, B-field structure, and accelerated particles

Details Relativistic collisionless shocks: shock build-up, B-field structure, and accelerated particles Relativistic collisionless shocks: shock build-up, B-field structure, and accelerated particles

Oct 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aps..dppgp1141s&link_type=abstract

American Physical Society, 45th Annual Meeting of the Division of Plasma Physics, October 27-31, 2003, Albuquerque, New Mexico,

Physics

Plasma Physics

Scientific paper

Relativistic shocks are pervasive in violent astrophysical scenarios. These shocks are collisionless and the dynamics can only be fully understood via kinetic simulations. We present three-dimensional PIC simulations results for relativistic electron-positron and electron-proton shocks in unmagnetized plasmas, obtained with OSIRIS. The shocks are either formed by a relativistic numerical piston or from the collision of a moving plasma shell with a background plasma. We demonstrate, in 3D, shock formation due to the electromagnetic beam plasma instability, near equipartition magnetic field generation, and particle acceleration with a power law dependence consistent with the astronomical observations.

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