Abstract Details
Abstracts
Author: James L. Juno
Requested Type: Poster
Submitted: 2017-03-17 16:20:10
Co-authors: J. TenBarge, A. Hakim
Contact Info:
University of Maryland College Park
Energy Research Building, 8279
College Park, Maryland 20740
USA
Abstract Text:
Magnetized shocks have been a frequently studied process for the acceleration of particles in a variety of astrophysical systems. Since most of these systems are weakly collisional, a common tool for the numerical simulation of magnetized shocks has been the particle-in-cell method. Here, we present studies of a non-relativistic collisionless shock using a continuum Vlasov-Maxwell model, which, instead of treating the plasma as a collection of macroparticles, directly discretizes the plasma distribution function on a combined configuration-velocity phase space grid. The discretization of the Vlasov-Maxwell system of equations onto a grid provides unparalleled signal, allowing us to explore processes such as the bulk heating of the plasma via the shock. We focus in particular on the use of a novel diagnostic, field-particle correlations, to ascertain the importance of wave-particle resonances such as Landau damping in the energization of the plasma as the shock passes through it.
Comments:
If I could be placed next to Jason M. TenBarge's poster, that would be helpful since we are both using the same simulation framework.