Propagation speed, linear stability, and ion acceleration in radially imploding Hall-driven electron-magnetohydrodynamic shocks
Plasma Physics
2018-02-14 v1
Abstract
Plasma density gradients are known to drive magnetic shocks in electron-magnetohydrodynamics (EMHD). Previous slab modeling has been extended to cylindrical modeling of radially imploding shocks. The main new effect of the cylindrical geometry is found to be a radial dependence in the speed of shock propagation. This is shown here analytically and in numerical simulations. Ion acceleration by the magnetic shock is shown to possibly become substantial, especially in the peaked structures that develop in the shock because of electron inertia.
Cite
@article{arxiv.1801.00017,
title = {Propagation speed, linear stability, and ion acceleration in radially imploding Hall-driven electron-magnetohydrodynamic shocks},
author = {A. S. Richardson and S. B. Swanekamp and S. L. Jackson and D. Mosher and P. F. Ottinger},
journal= {arXiv preprint arXiv:1801.00017},
year = {2018}
}
Comments
Accepted for publication in Physics of Plasmas