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Laboratory simulation of magnetospheric chorus wave generation

机译:磁体合唱波生成的实验室模拟

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Whistler mode chorus emissions with a characteristic frequency chirp are important magnetospheric waves, responsible for the acceleration of outer radiation belt electrons to relativistic energies and also for the scattering loss of these electrons into the atmosphere. A laboratory experiment (Van Compernolle et al 2015 Phys. Rev. Lett. 114 245002, An et al 2016 Geophys. Res. Lett.) in the large plasma device at UCLA was designed to closely mimic the scaled plasma parameters observed in the inner magnetosphere, and shed light on the excitation of discrete frequency whistler waves. It was observed that a rich variety of whistler wave emissions is excited by a gyrating electron beam. The properties of the whistler emissions depend strongly on plasma density, beam density and magnetic field profiles.
机译:具有特征频率啁啾的吹口哨模式具有重要磁性波浪,负责外辐射带电子的加速度和相对论的能量,并且还用于将这些电子进入大气中的散射丧失。 一个实验室实验(Van Compernolle等,2015年的物理。rev. lett。114 245002,An等,2016 Geophys。res.stt。)Lett。)在UCLA的大等离子体装置中设计用于密切模仿内磁层中观察到的缩放等离子体参数 ,并阐明了离散频率吹笛的激励。 观察到,通过热化电子束激发丰富的吹口波排放。 吹口哨排放的性质强烈地依赖于等离子体密度,光束密度和磁场轮廓。

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