Self-Consistent Solar Wind Acceleration and Heating Due to Wave-Particle Interactions

摘要：提案题目：自一致的太阳风加速和加热由于波粒相互作用主要研究者：Tom T Chang，麻省理工学院研究人员将建立第一个自一致的动力学模型，研究太阳风中离子和电子速度分布如何与等离子体波动相互作用。其主要工作是将一个成功的研究项目——从地球磁层发出的“极地风”——扩展到太阳风。这项研究的主要目标之一是提供一种物理解释，将太阳日冕的观测与航天器在太阳风中的测量联系起来。初步结果表明，在离子回旋频率下，电磁波引起的波粒相互作用一般可以提供太阳风的加热和加速，特别是氦离子的优先加速。

Abstract: ATM 9908848Proposal Title: Self-Consistent Solar Wind Acceleration and Heating Due to Wave-Particle InteractionsPrincipal Investigator: Tom T Chang, MIT The investigators will construct the first self-consistent kinetic model of how ion and electron velocity distributions interact with plasma fluctuations in the solar wind. The main effort is to extend a successful research project on the "polar wind" emanating from the magnetosphere of the Earth to the solar wind. One of the main goals of the investigation is to provide a physical interpretation that relates observations of the solar corona to spacecraft measurements in the solar wind. Preliminary results indicate those wave particle interactions due to electromagnetic waves at ion cyclotron frequencies may provide the heating and acceleration of the solar wind in general, and the preferential acceleration of helium ions in particular.