Current Systems in Plasmas and Plasmoids

等离子体和等离子体团的当前系统

• 批准号: 8702793
• 负责人: Reiner Stenzel
• 金额: $ 24万
• 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: 1987
• 资助国家: 美国
• 起止时间: 1987-06-15 至 1990-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8702793&HistoricalAwards=false
• 关键词: Current; Systems; Plasmas; Plasmoids

The general subject of the research supported by this grant over the past five years has been the basic physics of magnetic field line reconnection. This is an important yet unsolved problem in magnetospheric physics, solar physics and astrophysics. The approach has been to attack the problem from the most accessible side, i.e., laboratory experiments. In the process of understanding reconnection several related phenomena have been investigated. These include waves and instabilities and beam-plasma interactions. Major new results have been obtained including magnetic field topologies, plasma properties, particle acceleration, anomalous resistivity, plasma turbulence and disruptive instabilities. Novel diagnostics and state-of-the-art digital data processing have been developed. In this renewal grant the same equipment with some additions will be used in new ventures. Specifically, the topics of electric currents in various solar terrestrial simulations will be studied; e.g., plasmoids, magnetic flux ropes, moving plasmas and beams. All of these are relevant to the solar-terrestrial environment where electric currents control the energetics of magnetospheric dynamics.

这项资助所支持的研究的一般主题 在过去的五年里， 场线重连 这是一个重要的尚未解决的问题 磁层物理学、太阳物理学和 天体物理学 解决问题的方法是从 最容易接近的一侧，即，实验室实验 在理解重联的过程中， 现象进行了调查。 其中包括波浪和 不稳定性和束-等离子体相互作用。 主要新成果 包括磁场拓扑，等离子体 性质，粒子加速，异常电阻率，等离子体 湍流和破坏性不稳定性。 新的诊断方法和 已经开发了最先进的数字数据处理。 在此更新授予相同的设备与一些补充 将用于新的企业。 具体而言， 各种日地模拟中的电流 被研究;例如，等离子体团，磁通绳，移动等离子体 和梁。 所有这些都与日地关系有关 电流控制能量的环境 磁层动力学