论文标题
电子离子等离子体中有轻度相对论的磁性冲击。电磁冲击结构
Mildly relativistic magnetized shocks in electron-ion plasmas I. Electromagnetic shock structure
论文作者
论文摘要
使用2D动力学粒子中的模拟，对磁性电子离子等离子体进行了轻度相对论的冲击，该模拟是前所未有的高分辨率和大规模的大规模的，对于在Blazar核心内部冲击中可能发现的条件。离子尺度效应沿冲击表面引起波纹，其性能在某种程度上取决于平均垂直磁场的构型，该垂直磁场是在模拟平面内或之外的。我们表明，同步子Maser的不稳定性持续存在与理论预测一致的轻度相对论冲击，并产生上游传播电磁波的连贯发射。冲击前纹波在两个平均场构型中都均令人兴奋，并且会产生有效的波浪扩增。这些波与上游等离子体的相互作用会产生静电尾矿。
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.
