SGER: Excitation Mechanism of Internally Excited Magnetic Pulsations

SGER：内激磁脉动的激励机制

• 批准号: 9217859
• 负责人: Chio Cheng
• 金额: $ 5万
• 依托单位: Department of Energy Chicago Operations Office
• 依托单位国家: 美国
• 项目类别: Interagency Agreement
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-09-15 至 1994-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9217859&HistoricalAwards=false
• 关键词: SGER; Excitation; Mechanism; Internally; Excited

The proposed project deals with kinetic-MHD theory of low frequency instabilities and satellite data analysis of particle and wave to understand the excitation mechanisms of internally excited ultra low frequency (ULF) magnetic pulsations observed in the magnetosphere. The studies will provide important theoretical basis and techniques for computing new stability parameters from satellite particle data associated with ULF magnetic pulsations observed in the magnetosphere. Transverse waves are probably driven unstable by releasing free energy associated with oxygen ion velocity space bump-on-tail distribution or its pressure gradient via wave-particle resonances. Preliminary research results have revealed many new and important features of the physics of ULF waves and the related plasma properties.

拟议的项目涉及动力学MHD理论的低 频率不稳定性和卫星数据分析的粒子和 波来了解内部激发的激发机制 超低频（ULF）磁脉动观测中， 磁层本文的研究将为今后的研究提供重要的理论依据 以及计算新的稳定性参数的技术， 与超低频磁脉动有关的卫星粒子数据 在磁层中观察到的。横波很可能是 通过释放与氧离子有关的自由能而不稳定 尾部速度空间分布或压力梯度 通过波粒共振。初步研究结果显示， 揭示了超低频物理学的许多新的重要特征 波和相关的等离子体性质。