Solar and Heliospheric Radio Emission Processes

本项目将进一步探索等离子体发射现象。作为日球层内外许多射电发射现象的中心，这项研究将有利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，以及来自我们的日球层和周围星际介质之间边界区域的射电发射。与PI理论相关的主题也将被研究：(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)静电向横波非线性模式转换过程的定量建模；(4)非线性梁失稳的粒子池（PIC）模拟；(5)非线性模态转换过程的自洽建模；(6)非线性波粒动力学方程的建立与求解；(7)无碰撞冲击时电子能量的模拟；(8)辐射由带电电子在无碰撞冲击下产生。

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.