Abstract

We propose an analytical model for a distributed current sheet with a variable profile that separates two regions of anisotropic collisionless plasma with different magnetic fields and different effective temperatures of the kappa energy distributions of electrons and ions. The model also admits the presence of several ion components with different effective temperatures and spatially separated localized countercurrents of each of these components. We demonstrate the change in the characteristics of the current sheet when going from a Maxwellian to a kappa distribution, which takes into account the presence of a power-law spectrum of energetic particles typical of a nonequilibrium magnetoactive plasma. The theory developed allows us to carry out for the first time analytical modeling of such current configurations in both laboratory and cosmic plasmas, e.g., in planetary magnetopauses, coronal loops, and stellar wind with magnetic clouds.

中文翻译：

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具有Kappa能量分布的多组分无碰撞等离子体中的磁绝热的解析模型

摘要

我们提出了一种具有可变轮廓的分布式电流板的分析模型，该模型将具有不同磁场和不同有效温度的电子和离子卡伯能量分布的各向异性无碰撞等离子体的两个区域分开。该模型还允许存在几种具有不同有效温度的离子组分，并且每个组分在空间上都存在局部的局部逆流。我们展示了当从麦克斯韦分布到kappa分布时，当前工作表的特性变化，该变化考虑了非平衡磁活性等离子体典型的高能粒子的幂律谱的存在。