期刊
ASTROPHYSICAL JOURNAL LETTERS
卷 921, 期 1, 页码 -出版社
IOP Publishing Ltd
DOI: 10.3847/2041-8213/ac30e0
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This study investigates the nonthermal acceleration of electrons and ions at an oblique, nonrelativistic shock using large-scale particle-in-cell simulations in one spatial dimension. The simulation results reveal early onset of the diffusive shock acceleration for both electrons and ions at a highly oblique subluminal shock. Ion acceleration efficiencies of less than or similar to 5% are measured at later times, although this is not the saturated value.
The nonthermal acceleration of electrons and ions at an oblique, nonrelativistic shock is studied using large-scale particle-in-cell simulations in one spatial dimension. Physical parameters are selected to highlight the role of electron preheating in injection and subsequent acceleration of particles at high Mach number shocks. Simulation results show evidence for the early onset of the diffusive shock acceleration process for both electrons and ions at a highly oblique subluminal shock. Ion acceleration efficiencies of less than or similar to 5% are measured at late times, though this is not the saturated value.
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