Magnetic-reconnection-driven Turbulence and Turbulent Reconnection Acceleration

Magnetic-reconnection-driven Turbulence and Turbulent Reconnection Acceleration
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DOI:
10.3847/1538-4357/acdc18
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发表时间:
2023
期刊:
The Astrophysical Journal
影响因子:
--
通讯作者:
Xiao Hua-Ping
Xiao Hua-Ping
中科院分区:
--
文献类型:
--
作者:
Liang Shi-Min;Zhang Jian-Fu;Gao Na-Na;Xiao Hua-Ping

文献摘要

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Abstract. This paper employs an MHD-PIC method to perform numerical simulations of magnetic-reconnection-driven turbulence and turbulent reconnection acceleration of particles. Focusing on the dynamics of the magnetic reconnection, the properties of self-driven turbulence, and the behavior of particle acceleration, we find the following: (1) When reaching a statistically steady state of the self-driven turbulence, the magnetic energy is almost released by 50%, while the kinetic energy of the fluid increases by no more than 15%. (2) The properties of reconnection-driven turbulence are more complex than the traditional turbulence driven by an external force. (3) The strong magnetic field tends to enhance the turbulent reconnection efficiency to accelerate particles more efficiently, resulting in a hard spectral energy distribution. Our study provides a particular perspective on understanding turbulence properties and turbulent-reconnection-accelerated particles.