论文标题
垂直磁化无碰撞冲击的现场粒子相关分析
A Field-Particle Correlation Analysis of a Perpendicular Magnetized Collisionless Shock
论文作者
论文摘要
使用现场粒子相关技术，我们检查了垂直磁化无碰撞冲击的1D-2V连续vlasov-Maxwell模拟中的粒子能量。通过直接离散弗拉索夫方程提供的粒子分布函数的高忠诚度表示，田间粒子相关技术的组合使我们能够确定电磁场与相空间中电磁场和粒子之间能量交换的细节。我们通过构造一个简化的模型，该模型具有产生自相稳定的vlasov-maxwell Simulation中观察到的能量签名所必需的最小成分，从而确定了离子的冲击速度加速度的速度空间特征和电子对电子的绝热加热。因此，我们能够完全表征此处考虑的垂直无碰撞冲击中的能量转移，并为将现场粒子相关技术应用于航天器测量无碰撞冲击的测量提供了预测。
Using the field-particle correlation technique, we examine the particle energization in a 1D-2V continuum Vlasov--Maxwell simulation of a perpendicular magnetized collisionless shock. The combination of the field-particle correlation technique with the high fidelity representation of the particle distribution function provided by a direct discretization of the Vlasov equation allows us to ascertain the details of the exchange of energy between the electromagnetic fields and the particles in phase space. We identify the velocity-space signatures of shock-drift acceleration of the ions and adiabatic heating of the electrons due to the perpendicular collisionless shock by constructing a simplified model with the minimum ingredients necessary to produce the observed energization signatures in the self-consistent Vlasov-Maxwell simulation. We are thus able to completely characterize the energy transfer in the perpendicular collisionless shock considered here and provide predictions for the application of the field-particle correlation technique to spacecraft measurements of collisionless shocks.
