Particle-in-cell simulations of collisionless perpendicular shocks driven at a laser-plasma device
Source abstract
Abstract
Experiments of generation of quasi-perpendicular collisionless shocks driven by laser plasma were performed at the Shenguang-II laser facility with intense lasers. Here, using a 1D particle-in-cell simulation code including protons, carbon ions, and electrons, we investigate the experimental shock formation via the interaction between the laser-ablated piston and ambient plasma magnetized by a large pre-existing magnetic field and the associated ion dynamics in more detail. Simulation results show that, given enough time and space, ambient protons and carbon ions can be reflected at the piston–ambient interface successively, which leads to the formation of corresponding shocks before the piston and interface. Electric fields associated with the initial interaction known as Larmor coupling and the shocks may accelerate ambient protons, carbon ions reflected at the interface or shocks, and piston ones transmitted to the ambient region before shock formation.
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Research context
OpenAlex topics: Ionosphere and magnetosphere dynamics · Laser-Plasma Interactions and Diagnostics · Laser-induced spectroscopy and plasma
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory of Planetary Sciences, Purple Mountain Observatory, Chinese Academy of Sciences 1 , Nanjing 210023, China
CAS Key Laboratory of Geospace Environment, Department of Geophysics and Planetary Science, University of Science and Technology of China 2 , Hefei 230026, China
State Key Laboratory of Space Weather, National Space Science Center, Chinese Academy of Sciences 3 , Beijing 100190, People’s Republic of China
CAS Center for Excellence in Comparative Planetology 4 , Hefei 230026, China
School of Space Science and Physics, Institute of Space Sciences, Institute of Frontier and Interdisciplinary Science, Shandong University 5 , Weihai 264209, Shandong, People’s Republic of China
CAS Engineering Laboratory for Deep Resources Equipment and Technology, Institute of Geology and Geophysics, Chinese Academy of Sciences 6 , Beijing 100029, China
Funding
National Natural Science Foundation of China
References (57)
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