Solar and Heliospheric Radio Emission Processes

本项目将进一步探索等离子体发射现象。 该研究对日光层内外的许多无线电发射现象至关重要，将有益于许多其他相关过程，包括来自太阳和行星际空间的II型和III型爆发，地球弓形激波的辐射，以及我们的日光层与周围星际介质之间边界区域的无线电发射。 与PI理论相关的课题还包括：（1）环境磁场对辐射极化的影响;（2）辐射在行星际空间的传播和散射;（3）静电波到横波的非线性模式转换过程的定量模拟;（4）非线性束流不稳定性的PIC模拟;（5）电子束非线性不稳定性的数值模拟。（5）非线性模式转换过程的自洽模拟;（6）非线性波粒动力学方程的建立和求解;（7）无碰撞激波处电子散射的模拟;（8）无碰撞激波处激发电子的辐射。

This project will further explore the plasma emission phenomenon. Central to many radio emission phenomena within the heliosphere and beyond, the study will benefit many other related processes, including type II and type III bursts from the sun and interplanetary space, radiation at the Earth's bow shock, and the radio emission from the boundary region between our heliosphere and the surrounding interstellar medium. Topics related to the PI's theory that will also be studied are: (1) effects of ambient magnetic field on the polarization of the radiation; (2) propagation and scattering of the radiation in interplanetary space; (3) quantitative modeling of the nonlinear mode conversion process of electrostatic to transverse wave; (4) particle-in-cell (PIC) simulation of the nonlinear beam instability; (5) self-consistent modeling of the nonlinear mode conversion process; (6) formulation and solution of nonlinear wave-particle kinetic equation; (7) simulation of electron energization at the collisionless shock; and (8) radiation by the energized electrons at the collisionless shock.