Laboratory Observations of Hall Magnetic Field in Electron-Only Magnetic Reconnection With a Guide Field

Fa Yang; Quanming Lu; Qiaofeng Zhang; Jinlin Xie; Xinliang Gao; Yangguang Ke; Lei Tang; Shihang Hu; Yukang Shu; Youran Liu; Longlong Sang; San Lu; Rongsheng Wang; Weixing Ding

doi:10.1029/2024GL114151

Laboratory Observations of Hall Magnetic Field in Electron-Only Magnetic Reconnection With a Guide Field

Fa Yang
, Quanming Lu^*
, Qiaofeng Zhang
, Jinlin Xie
, Xinliang Gao
, Yangguang Ke
, Lei Tang
, Shihang Hu
, Yukang Shu
, Youran Liu
, Longlong Sang
, San Lu
, Rongsheng Wang
, Weixing Ding

^*Corresponding author for this work

University of Science and Technology of China
Chinese Academy of Sciences
Collaborative Innovation Center of Astronautical Science and Technology

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Recently, electron-only reconnection, in which there is no obvious ion bulk flow and ion heating, has been pervasively observed in the Earth's magnetosphere. In this Letter, we realize electron-only reconnection with a guide field in the Keda Linear Magnetized Plasma (KLMP) device. By measuring the magnetic field, we identify unambiguously a distorted quadrupolar structure of the magnetic field in the out-of-plane direction. At the same time, electrons are obviously heated in the current sheet with the half-width about 0.8 electron inertial length. The maximum velocity of the estimated electron flow in the reconnection plane is about eight Alfvén speed.

Original language	English
Article number	e2024GL114151
Journal	Geophysical Research Letters
Volume	52
Issue number	7
DOIs	https://doi.org/10.1029/2024GL114151
State	Published - 16 Apr 2025
Externally published	Yes

Keywords

Hall magnetic field
electron-only reconnection

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10.1029/2024GL114151

Cite this

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title = "Laboratory Observations of Hall Magnetic Field in Electron-Only Magnetic Reconnection With a Guide Field",

abstract = "Recently, electron-only reconnection, in which there is no obvious ion bulk flow and ion heating, has been pervasively observed in the Earth's magnetosphere. In this Letter, we realize electron-only reconnection with a guide field in the Keda Linear Magnetized Plasma (KLMP) device. By measuring the magnetic field, we identify unambiguously a distorted quadrupolar structure of the magnetic field in the out-of-plane direction. At the same time, electrons are obviously heated in the current sheet with the half-width about 0.8 electron inertial length. The maximum velocity of the estimated electron flow in the reconnection plane is about eight Alfv{\'e}n speed.",

keywords = "Hall magnetic field, electron-only reconnection",

author = "Fa Yang and Quanming Lu and Qiaofeng Zhang and Jinlin Xie and Xinliang Gao and Yangguang Ke and Lei Tang and Shihang Hu and Yukang Shu and Youran Liu and Longlong Sang and San Lu and Rongsheng Wang and Weixing Ding",

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day = "16",

doi = "10.1029/2024GL114151",

language = "英语",

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TY - JOUR

T1 - Laboratory Observations of Hall Magnetic Field in Electron-Only Magnetic Reconnection With a Guide Field

AU - Yang, Fa

AU - Lu, Quanming

AU - Zhang, Qiaofeng

AU - Xie, Jinlin

AU - Gao, Xinliang

AU - Ke, Yangguang

AU - Tang, Lei

AU - Hu, Shihang

AU - Shu, Yukang

AU - Liu, Youran

AU - Sang, Longlong

AU - Lu, San

AU - Wang, Rongsheng

AU - Ding, Weixing

PY - 2025/4/16

Y1 - 2025/4/16

N2 - Recently, electron-only reconnection, in which there is no obvious ion bulk flow and ion heating, has been pervasively observed in the Earth's magnetosphere. In this Letter, we realize electron-only reconnection with a guide field in the Keda Linear Magnetized Plasma (KLMP) device. By measuring the magnetic field, we identify unambiguously a distorted quadrupolar structure of the magnetic field in the out-of-plane direction. At the same time, electrons are obviously heated in the current sheet with the half-width about 0.8 electron inertial length. The maximum velocity of the estimated electron flow in the reconnection plane is about eight Alfvén speed.

AB - Recently, electron-only reconnection, in which there is no obvious ion bulk flow and ion heating, has been pervasively observed in the Earth's magnetosphere. In this Letter, we realize electron-only reconnection with a guide field in the Keda Linear Magnetized Plasma (KLMP) device. By measuring the magnetic field, we identify unambiguously a distorted quadrupolar structure of the magnetic field in the out-of-plane direction. At the same time, electrons are obviously heated in the current sheet with the half-width about 0.8 electron inertial length. The maximum velocity of the estimated electron flow in the reconnection plane is about eight Alfvén speed.

KW - Hall magnetic field

KW - electron-only reconnection

UR - https://www.scopus.com/pages/publications/105002021981

U2 - 10.1029/2024GL114151

DO - 10.1029/2024GL114151

M3 - 文章

AN - SCOPUS:105002021981

SN - 0094-8276

VL - 52

JO - Geophysical Research Letters

JF - Geophysical Research Letters

IS - 7

M1 - e2024GL114151

ER -

Laboratory Observations of Hall Magnetic Field in Electron-Only Magnetic Reconnection With a Guide Field

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Keywords

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