Particle Motion and Plasma Configuration of OTD Magnetospheres

9310753黄我们建议对天王星和海王星的磁层进行全面的调查。 调查包括 以下几个方面：（1）大偏移倾斜偶极子（OTD）磁场磁层中带电粒子沿着磁力线的导向中心运动和等离子体性质; (2)天王星和海王星等离子体球的形成和结构 (3)磁层动力学，特别是电流系统及其对OTD磁层质量和能量输运及稳定性的影响;（4）天王星和海王星磁层等离子体的来源和输运过程。带电粒子在具有自旋轴取向磁偶极子场的磁层中运动的研究Huang等，1988年，在各向异性旋转磁层等离子体中密度和温度沿着磁力线的空间变化，Huang和Birmingham，1992年，以及在OTD框架中磁层的3D描述Huang和Sittler，1993年。 它们还将以观测数据为指导。 这些研究的结果将增加我们对天王星和海王星磁层以及地球磁层的了解。 ***

9310753 Huang We propose to carry out a comprehensive investigation of the Uranian and Neptunian magnetospheres. The investigation includes the following aspects: (1) The guiding center motion of charged particles and the plasma bulk properties along a field line in the magnetospheres with large offset and tilted dipole (OTD) magnetic field; (2) The formation and configuration of the plasmaspheres at Uranus and Neptune; (3) The magnetospheric dynamics, especially the current systems and their effects on the mass and energy transports and the stability of the OTD magnetospheres; (4) The sources and transport processes of the plasma in the Uranian and Neptunian magnetospheres, The proposed studies will be developed on the basis of our previous work, the studies on the motion of chareged particles in the magnetospheres with spin axis aligned magnetic dipole field Huang et al., 1988 , the spatial variations of density and temperature along a magnetic field line in an anisotropic rotating magnetospheric plasma Huang and Birmingham, 1992 and the 3D description of magnetosphere in a OTD frame Huang and Sittler, 1993 . They will also be guided by observational data. The results of these studies would increase our understanding of the Uranian and Neptunian magnetospheres as well of the terrestrial magnetosphere. ***