SGER: Origins and Dynamics for the Variety of Broadband Electrostatic Waves in Earth's Magnetotail

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This project will investigate the phenomenon of broadband electrostatic noise (BEN) that has been observed in the Earth's magnetotail. The project will examine a recent model for the production of BEN which involves both trapped solitary waves and an untrapped, large region of non-solitary waves. It will focus on developing two aspects of the model: (1) the non-linear theory of trapped solitary waves in a general magnetized plasma, and (2) the evolution of non-solitary waves associated with beam-plasma instabilities in inhomogeneous plasmas.