论文标题
在无碰撞冲击的情况下,电子束微微量的不稳定,低马赫数
Electron Beam Weibel Instability in the Collisionless Shock with Low Mach Number
论文作者
论文摘要
通过细胞模拟中的粒子研究了静电无碰撞冲击中的电子束微量的不稳定性。当非相关传入的等离子体与冷稀的等离子体碰撞时,界面附近形成静电冲击。在此之后,由于微生的不稳定性而形成了平面外磁场。证明传入热电子的各向异性不足以触发微生的不稳定性。稀释的等离子体中的冷电子激发了微生的不稳定性。在通过冲击电场加速到相对论速度进入密集的等离子体后,稀稀血浆中的电子具有相当大的各向异性,并且可以触发微生的不稳定性
The electron beam Weibel instability in the electrostatic collisionless shock is studied via particle in cell simulation. When the non-relativistic incoming plasmas collide with cold dilute plasmas, an electrostatic shock forms near the interface. Following that, a filamentary out-of-plane magnetic field is formed as a result of the Weibel instability. It is demonstrated that the anisotropy of incoming hot electrons is insufficient to trigger the Weibel instability. And the Weibel instability is excited by cold electrons in dilute plasmas. After being accelerated to relativistic velocities by the shock electric field into the dense plasmas, electrons in the dilute plasma have considerable anisotropy and can trigger the Weibel instability