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Numerical Simulations of Particle Acceleration at Interplanetary Quasi-perpendicular Shocks
Kong, F. -J.; Qin, G.; Zhang, L. -H.; Qin, G (reprint author), Harbin Inst Technol, Sch Sci, Shenzhen 518055, Peoples R China.
作者部门空间科学部
发表期刊ASTROPHYSICAL JOURNAL
2017
卷号845期号:1页码:43
ISSN0004-637X
语种英语
关键词Acceleration Of Particles Shock Waves
摘要Using test particle simulations we study particle acceleration at highly perpendicular (theta(Bn) >= 75 degrees) shocks under conditions of modeling magnetic turbulence. We adopt a backward-in-time method to solve the Newton-Lorentz equation using the observed shock parameters for quasi-perpendicular interplanetary shocks, and compare the simulation results with ACE/EPAM observations to obtain the injection energy and timescale of particle acceleration. With our modeling and observations, we find that a large upstream speed is responsible for efficient particle acceleration. Our results also show that the quasi-perpendicular shocks are capable of accelerating thermal particles to high energies of the order of MeV for both kappa and Maxwellian upstream distributions, which may originate from the fact that in our model, the local background magnetic field has a component parallel to the shock normal.
收录类别SCI
文献类型期刊论文
条目标识符http://ir.nssc.ac.cn/handle/122/5994
专题空间科学部
通讯作者Qin, G (reprint author), Harbin Inst Technol, Sch Sci, Shenzhen 518055, Peoples R China.
推荐引用方式
GB/T 7714
Kong, F. -J.,Qin, G.,Zhang, L. -H.,et al. Numerical Simulations of Particle Acceleration at Interplanetary Quasi-perpendicular Shocks[J]. ASTROPHYSICAL JOURNAL,2017,845(1):43.
APA Kong, F. -J.,Qin, G.,Zhang, L. -H.,&Qin, G .(2017).Numerical Simulations of Particle Acceleration at Interplanetary Quasi-perpendicular Shocks.ASTROPHYSICAL JOURNAL,845(1),43.
MLA Kong, F. -J.,et al."Numerical Simulations of Particle Acceleration at Interplanetary Quasi-perpendicular Shocks".ASTROPHYSICAL JOURNAL 845.1(2017):43.
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