Structure and kinetic properties of slow-mode shocks associated with magnetic reconnection in the near-Earth magnetotail |
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Authors: | Xi Lin Xiaohua Deng Zhigang Yuan Meng Zhou Shiyou Li Ye Pang |
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Institution: | 1. School of Electronic Information, Wuhan University, Wuhan 430079, PR China;2. Institute of Space Science and Technology, Nanchang University, Nanchang 330031, PR China |
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Abstract: | We study the structure and kinetic properties of slow-mode shocks near the plasma sheet boundary layer (PSBL) associated with magnetic reconnection by Cluster observation. The presence of slow-mode shocks is confirmed by traditional Rankine–Hugoniot (RH) analysis and Monte-Carlo shock fitting method. The Walén analysis, applied to the tailward flow associated with slow-mode shocks, also supports that plasma was accelerated across a Petschek-type slow-mode shock connected to the diffusion region. Back-streaming ions were observed on the shock layer, and cold ions were accelerated and heated by slow-mode shocks. In addition, whistler and electrostatic solitary waves were observed around the slow-mode shocks. These waves might be excited by the observed field-aligned electron beams near the shocks. |
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Keywords: | Slow-mode shock Ion dynamics Plasma wave |
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