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Reformation of rippled quasi-parallel shocks: 2-D hybrid simulations
Hao, Yufei; Gao, Xinliang; Lu, Quanming; Huang, Can; Wang, Rongsheng; Wang, Shui; Lu, QM (reprint author), Univ Sci & Technol China, Dept Geophys & Planetary Sci, CAS Key Lab Geospace Environm, Hefei, Peoples R China.; Lu, QM (reprint author), Collaborat Innovat Ctr Astronaut Sci & Technol, Harbin, Peoples R China.
Department空间科学部
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
2017
Volume122Issue:6Pages:6385-6396
ISSN2169-9380
Language英语
KeywordQuasi-parallel Shocks Hybrid Simulation Ripples Reformation
AbstractOne-dimensional (1-D) hybrid simulations have demonstrated that a quasi-parallel shock is nonstationary and undergoes a reformation process. Recently, two-dimensional (2-D) hybrid simulations have revealed that ripples along the shock front is an inherent property of a quasi-parallel shock. In this paper, we investigate reformation process of a rippled quasi-parallel shock with a 2-D hybrid simulation model. The simulation results show that at a rippled shock, incident particles behave differently and just can be partially reflected at some specific locations along the rippled shock front, and the reflected particles will form an ion beam that moves back to the upstream along the magnetic field. Then, the beam locally interacts with upstream waves, and the waves are enhanced and finally steepen into a new shock front. As the upstream incident plasma moves to the shock front, the new shock front will approach and merge with the old shock front. Such a process occurs only before these locations along the shock front, and after the merging of the new shock front and old shock front is finished, a relatively plane shock front is formed. Subsequently, a new rippled shock front is again generated due to its interaction with the upstream waves, and it will repeat the previous process. In this pattern, the shock reforms itself quasiperiodically, and at the same time, ripples can shift along the shock front. The simulations present a more complete view of reformation for quasi-parallel shocks.
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/6015
Collection空间科学部
Corresponding AuthorLu, QM (reprint author), Univ Sci & Technol China, Dept Geophys & Planetary Sci, CAS Key Lab Geospace Environm, Hefei, Peoples R China.; Lu, QM (reprint author), Collaborat Innovat Ctr Astronaut Sci & Technol, Harbin, Peoples R China.
Recommended Citation
GB/T 7714
Hao, Yufei,Gao, Xinliang,Lu, Quanming,et al. Reformation of rippled quasi-parallel shocks: 2-D hybrid simulations[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2017,122(6):6385-6396.
APA Hao, Yufei.,Gao, Xinliang.,Lu, Quanming.,Huang, Can.,Wang, Rongsheng.,...&Lu, QM .(2017).Reformation of rippled quasi-parallel shocks: 2-D hybrid simulations.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,122(6),6385-6396.
MLA Hao, Yufei,et al."Reformation of rippled quasi-parallel shocks: 2-D hybrid simulations".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 122.6(2017):6385-6396.
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