磁暴非线性起源的四种孤子机制  

Nonlinear mechanism of four solitons on origin of magnetic storms

作　　者：张一方[1] 

机构地区：[1]云南大学物理系,云南昆明650091

出　　处：《信阳师范学院学报（自然科学版）》2001年第3期354-356,共3页Journal of Xinyang Normal University(Natural Science Edition)

基　　金：云南省自然科学基金资助 (2 0 0 0 E0 0 1 6M)

摘　　要：引起磁暴的主要原因是太阳耀斑等产生的太阳风 .本文基于磁暴起源的非线性机制 ,讨论了四种孤子模型 :1 .已知的 Alfven波及相应的变形 kd V方程 .2 .Langmuir波及其方程与相关的非线性 Schrodinger方程 .3 .一般的离子声波和磁流体动力学波的 kd V方程 .4 .太阳风粒子密度的非线性 Dirac方程 .各种原因导致的这些方程都有孤子解 .The known cause of magnetic storms is mainly the Solar Wind produced by the solar flare,etc.Based on the nonlinear mechanism of magnetic storms,we discuss the four type models:1.The modified kdV equation on the Alfven wave in a collisionless plasma.2.The equation of Langmuir waves in plasma and correlative the nonlinear Schrodinger equation.3.The kdV equation on the general ion acoustic wave and on magnetohydrodynamic waves in plasma.4.The nonlinear Dirac equation of the particle density on the Solar Wind.these equations produced by various causes all possess the soliton solutions.Their origins and pulse property may provide a theoretical base for the prediction on the magnetic storms.

关 键 词：磁暴 太阳风 预报 非线性机制 太阳耀斑 孤子模型 孤子解 

分 类 号：P318.22[天文地球—固体地球物理学]