地球磁尾和磁层顶磁场变化的随机特性

本文讨论了平板模型下电阻不稳定性使磁力线由对称平衡状态进入随机状态的可能性;给出该模型下以（x,z）为正则坐标的哈密顿函数表达式;在Harris平衡磁场分布下分析了撕裂模不稳定性,驱动重联和涡旋诱发重联引起的磁力线随机特性;估计了两个磁岛相互作用时磁力线进入随机态的临界值.本文结果可用于讨论地球磁层顶和磁尾处磁场的性质.     

模转换理论(英文)

Mode conversion theories, especially linear mode conversion theories including local and nonlocal, are reviewed. The issues they are addressed and the limitations with these approaches are discussed.     

参量不稳定性(英文)

A general formalism of the parametric instabilities in the magnetized inhomogencon plasmas is presented. The gyrokinetic and oscillating center methods are adopted For sin plification dipole pump (k0= 0) approximation is considered in the derivation. The WK approximation is used in the inhomogeneous plasma cases. Some properties and applications of the theory arc discussed.