Mildly relativistic magnetized shocks in electron-ion plasmas I. Electromagnetic shock structure
arXiv:2012.08969 · doi:10.1093/mnras/staa3901
Abstract
Mildly relativistic shocks in magnetized electron-ion plasmas are investigated with 2D kinetic particle-in-cell simulations of unprecedentedly high resolution and large scale for conditions that may be found at internal shocks in blazar cores. Ion-scale effects cause corrugations along the shock surface whose properties somewhat depend on the configuration of the mean perpendicular magnetic field, that is either in or out of the simulation plane. We show that the synchrotron maser instability persists to operate in mildly relativistic shocks in agreement with theoretical predictions and produces coherent emission of upstream-propagating electromagnetic waves. Shock front ripples are excited in both mean-field configurations and they engender effective wave amplification. The interaction of these waves with upstream plasma generates electrostatic wakefields.
arXiv comment14 pages, 19 figures; This is a pre-copyedited, author-produced PDF of an article accepted for publication in MNRAS following peer review
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- Mildly relativistic magnetized shocks in electron-ion plasmas -- II. Particle acceleration and heating
- Particle Acceleration by Pickup Process Upstream of Relativistic Shocks
- Saturation of the asymmetric current filamentation instability under conditions relevant to relativistic shock precursors
- X-ray Spectral Analysis of the Jet Termination Shock in Pictor A on Sub-Arcsecond Scales with Chandra
- Shock corrugation to the rescue of the internal shock model in microquasars: The single-scale MHD view