Formation of double layers within an oblique collisionless shock.
Formation of double layers within an oblique collisionless shock.
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DOI：
10.1103/physrevlett.62.2683
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发表时间：
1989-06
影响因子：
8.6
通讯作者：
Lembege;Dawson
中科院分区：
文献类型：
--
作者：
Lembege;Dawson
仿真结果表明，当激波斜向磁场传播时（参数运行角度为55 ~ 80度），激波前缘形成双层结构，并在激波动力学中起重要作用。电子通过双层层被强烈加速，并在激波后分散离子和磁场波动。一些离子被双层反射，并在磁场中跳跃。在这些研究中，电子加热是主要的耗散。
Simulations show that for shock waves propagating obliquely to a magneticfield (angles from 55/degree/ to 80/degree/ for the parameters run), a double layer formsat the shock front and plays an important role in the shock dynamics. Electronsare strongly accelerated through the double layer and scattered off ion andmagnetic field fluctuations behind the shock. Some ions are reflected by thedouble layer and the jump in magnetic field. For these investigations, electronheating is the major dissipation.