Magnetospheric Wave - Particle Processes

磁层波 - 粒子过程

• 批准号: 9101202
• 负责人: Richard Thorne
• 金额: $ 20.5万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-05-15 至 1993-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9101202&HistoricalAwards=false
• 关键词: Magnetospheric; Wave; Particle; Processes

Previous studies of micro-instabilities in a hot plasma have generally employed the plasma dispersion function which is strictly applicable only to a Maxwilliam distribution. Natural plasmas, however, contain a pronounced high energy component which can best be modeled a by Lorentzian distribution. The stability properties of such a distribution can be substantially different from that of a Maxwilliam plasma leading to dramatic changes in the growth or damping rate of plasma waves. This grant is to evaluate explicitly the stability of a Lorentzian plasma and to investigate the path integrated gain of waves in a fully hot plasma using a hot ray tracing code. *** //

先前对热等离子体微观不稳定性的研究 通常采用等离子体色散函数， 严格适用于Maxwilliam分布。 自然 然而，等离子体含有明显的高能成分， 其可以最好地由洛伦兹分布来建模。 的 这种分布的稳定性特性可以基本上 与Maxwilliam等离子体不同，导致戏剧性的 等离子体波的增长或衰减率的变化。 这 格兰特是明确评估的稳定性的洛伦兹 等离子体中波的路径积分增益， 使用热射线跟踪代码的全热等离子体。 *** //