等离子体彗尾中的某些波态

A Discussion on some Waves in the Plasma Comets

等离子体彗尾中,能观测到许多螺旋状结构、疑聚结构和云状物.这是作为等离子体园柱体的彗尾,沉浸在太阳风等离子体之中,受到扰动的产物.本文从理论上分析了Ⅰ型彗尾中非线性扰动波的特征及其某些演化过程,从而使上述彗尾中的许多观测现象得到了合理的解释.

The observation already showed us that there are a lot of the helical structures,condensations and clouds in the Ⅰ type plasma cometary tails. We have known that they result from the plasma disturbances.In this paper, the authors have given a discussion theoretically,and analysed the evolution processes of non-linear waves as well as their stability in the plasma tails. The Phenomena of the observation in Ⅰ type tails are able,therefore,to be explained.