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Electron Acceleration via Secondary Reconnection in the Separatrix Region of Magnetopause Reconnection
  • +6
  • Xuesong Fu,
  • Zhihong Zhong,
  • Meng Zhou,
  • Wenqing Ma,
  • Ye Pang,
  • Liangjin Song,
  • Xiujuan Ou,
  • Runqing jin,
  • Xiaohua Deng
Xuesong Fu
Nanchang University
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Zhihong Zhong
Nanchang University
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Meng Zhou
Nanchang University

Corresponding Author:[email protected]

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Wenqing Ma
Nanchang university
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Ye Pang
Nanchang University
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Liangjin Song
Nanchang University
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Xiujuan Ou
Nanchang University
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Runqing jin
Nanchang University
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Xiaohua Deng
Nanchang University
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Abstract

Magnetic reconnection is a fundamental process known to play a crucial role in electron acceleration and heating, however, the mechanism of electron energization during reconnection is still not fully understood. This study introduces a novel electron acceleration mechanism in which electrons can be accelerated by secondary reconnection in the separatrix region. The secondary reconnection occurs in a thin current sheet resulted from the shear of the out-of-plane Hall magnetic fields of the primary magnetopause reconnection. It results in intense electron energy fluxes towards the primary X-line. This result will likely be an important piece in the puzzle of particle acceleration by reconnection.
15 May 2024Submitted to ESS Open Archive
15 May 2024Published in ESS Open Archive