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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.
Department空间科学部
Source PublicationASTROPHYSICAL JOURNAL
2017
Volume845Issue:1Pages:43
ISSN0004-637X
Language英语
KeywordAcceleration Of Particles Shock Waves
AbstractUsing 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.
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/5994
Collection空间科学部
Corresponding AuthorQin, G (reprint author), Harbin Inst Technol, Sch Sci, Shenzhen 518055, Peoples R China.
Recommended Citation
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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