平行电流条件下等离子低频波动的特征  

The Characteristics of Low Frequency Plasma Wave Propagation Affected by Parallel Current

作　　者：陈涛[1] 师立勤[1] 刘振兴[1] 

机构地区：[1]中国科学院空间科学与应用研究中心,北京100080

出　　处：《科学技术与工程》2002年第1期46-48,共3页Science Technology and Engineering

基　　金：国家自然科学基金(49834040);国家自然科学基金G2000078406资助

摘　　要：利用 MHD 理论研究了在与背景磁场方向平行的电流条件下低频等离子体波动传播情况,讨论了电流的相对强度对波动色散关系的改变。并着重指出了长波传播过程中产生平行电流不稳定性的特点。The MHD ( Magnetohydrodynamic) wave propagation inthe plasma region with the current which is parallel to background magnetic field has been studied,the effect of parallel current on the MHD wave dispersive relation has been explained in this paper,the characteristics of parallel current instability which is generated in the propagation of long wave length MHD has been pointed particularly.

关 键 词：平行电流 MHD理论 低频等离子体 波动特征 色散关系 

分 类 号：O53[理学—等离子体物理]