SGER: Small Grant Exploratory Reseearch on Chorus Electrostatic Bursts

该项目将研究最近发展起来的磁化等离子体中BGK(Bernstein-Greene-Kruskal)波模理论是否能够解释在地球外层磁层和磁层尖端以及木星和土星的磁层中观察到的静电爆发(ESB)的不同寻常的特征。ESB事件可能相当大，了解源机制可能与影响辐射带的过程有关，因此这项工作与了解和预测空间天气有关。该项目将扩展BGK非线性理论，并将结果与从各种卫星任务中观察到的ESB事件进行比较。

This project will examine whether the recently-developed theory of BGK (Bernstein-Greene-Kruskal) wave modes in a magnetized plasma can account for the unusual features of electrostatic bursts (ESBs) observed in magnetospheric chorus waves in the outer magnetosphere and magnetospheric cusp of the Earth as well as the magnetospheres of Jupiter and Saturn. The ESB events can be quite large and understanding the source mechanism is likely to be relevant to processes that affect the radiation belts and the work thus has relevance to understanding and predicting space weather. The project will extend the BGK nonlinear theory and will compare the results with ESB events observed from a variety of satellite missions.