Relativistic tearing and drift-kink instabilities in two-fluid simulations
Relativistic tearing and drift-kink instabilities in two-fluid simulations
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DOI：
10.1093/mnras/stw384
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发表时间：
2016-02
影响因子：
4.8
通讯作者：
M. Barkov;S. Komissarov
中科院分区：
文献类型：
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作者：
M. Barkov;S. Komissarov
采用二维两流体相对论磁流体力学方法，研究了无碰撞相对论对等离子体中电流片的稳定性。特别是，我们研究了撕裂和漂移扭结模式的线性增长的电流片，有和没有引导场，并获得的增长率是非常相似的，已经发现在相应的粒子在细胞（PIC）模拟。这表明，双流体模拟在研究涉及磁重联的天体物理相对论等离子体的大尺度动力学问题中是有用的。
The stability of current sheets in collisionless relativistic pair plasma was studied via two-dimensional two-fluid relativistic magnetohydrodynamic simulations with vanishing internal friction between fluids. In particular, we investigated the linear growth of the tearing and drift-kink modes in the current sheets both with and without the guide field and obtained the growth rates which are very similar to what has been found in the corresponding particle in cell (PIC) simulations. This suggests that the two-fluid simulations can be useful in studying the large-scale dynamics of astrophysical relativistic plasmas in problems involving magnetic reconnection.