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Adiabatic Acceleration in a Magnetotail Flux Rope
Geophysical Research Letters ( IF 5.2 ) Pub Date : 2020-05-30 , DOI: 10.1029/2020gl087918
J. T. Dahlin 1
Affiliation  

A new study of Magnetospheric Multiscale Mission (MMS) measurements in the Earth's magnetotail, presented by Zhong et al. (2020, https://doi.org/10.1029/2019GL085141) finds that enhanced energetic electrons in a reconnection‐generated ion‐scale flux rope in the magnetotail are due to the adiabatic processes of betatron and Fermi (curvature drift) acceleration. These mechanisms act, respectively, on the perpendicular and parallel components of the distribution function so that the role of these mechanisms may be distinctly identified. This study presents a useful template for studying in situ electron energization and contributes significantly to the ongoing discussion of the role of mesoscale structure in reconnection‐driven particle acceleration throughout the heliosphere.

中文翻译:

磁尾磁通绳中的绝热加速

Zhong等人提出的一项关于地球磁尾中磁层多尺度任务(MMS)测量的新研究。(2020,https://doi.org/10.1029/2019GL085141)发现磁尾中重新连接产生的离子级通量绳中的高能电子增强是由于电子感应加速器和费米(曲率漂移)加速的绝热过程引起的。这些机制分别作用于分布函数的垂直和平行分量,因此可以清楚地确定这些机制的作用。这项研究为研究原位电子通电提供了一个有用的模板,并为正在进行的中尺度结构在整个太阳圈中重新连接驱动的粒子加速中的作用的持续讨论做出了重要贡献。
更新日期:2020-05-30
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