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Alternative TitleStudy of Energetic particle's Acceleration Mechanism at Perpendicular Shock With Particle Simulation Results
孙鹏; 秦刚; 王赤; 北京8701信箱
Source Publication空间科学学报
Keyword高能粒子 激波加速 漂移加速 耗散加速 垂直激波 磁湍流
Other AbstractLarge amount of test particles' trajectories at perpendicular shock with magnetic tur-bulence are calculated. And the effect of shock strength and particles' initial energy to the average energy change per shock-crossing is also studied. Furthermore, the test particle's energy gain from Shock Drift Acceleration (SDA) under different conditions is analysed, too. In addition, a theoretical formula△E=amvivup(1-3/1)is given for SDA, which agrees very well with our simulation results.The results show that, although magnetic turbulence is included, particles would still be accelerated mainly by SDA at perpendicular shock, while the diffusive shock acceleration, based on the guiding center assumption, is not valid.
Indexed ByCSCD
Funding Project中国科学院空间科学与应用研究中心
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Document Type期刊论文
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
孙鹏,秦刚,王赤,等. 垂直激波条件下能量粒子加速机制的模拟研究[J]. 空间科学学报,2007,27(6):441-447.
APA 孙鹏,秦刚,王赤,&北京8701信箱.(2007).垂直激波条件下能量粒子加速机制的模拟研究.空间科学学报,27(6),441-447.
MLA 孙鹏,et al."垂直激波条件下能量粒子加速机制的模拟研究".空间科学学报 27.6(2007):441-447.
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