Large-scale versus Small-scale Fields in the Shock Front: Effect on the Particle Motion
Large-scale versus Small-scale Fields in the Shock Front: Effect on the Particle Motion
复制标题
激波锋中的大尺度场与小尺度场：对粒子运动的影响
DOI：
10.3847/1538-4357/ab8af0
复制
发表时间：
2020
期刊：
影响因子：
--
通讯作者：
M. Gedalin
中科院分区：
文献类型：
--
作者：
M. Gedalin
日球层激波的现场测量表明，激波锋内部的大尺度电场和磁场伴随着强烈的小尺度场。直到最近，人们还普遍认为粒子动力学是由大尺度场决定的。在过去的几年里，有人声称小规模的油田是首要的。在这里，我们展示了大尺度场控制离子运动，而大尺度场和小尺度场对电子都很重要。
In situ measurements at heliospheric shocks show that inside the shock front large-scale electric and magnetic fields are accompanied with strong small-scale fields. Until recently, it was widely believed that particle dynamics is determined by the large-scale fields. During the last several years, claims have been made that the small-scale fields are of primary importance. Here we show that the large-scale fields govern the ion motion while both large- and small-scale fields are important for electrons.