Influence of Generalized （r, q） Distribution Function on Electrostatic Waves

作     者：M.N.S. Qureshi SHI Jian-Kui MA Shi-Zhuang 

作者机构：Key Laboratory of Space Weather the Chinese Academy of Sciences Beijing 100080 China Department of Physics Government College University~ Lahore 54000~ Pakistan Graduate University of the Chinese Academy of Sciences Beijing 100049 China 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2006年第45卷第3期

页      面：550-554页

核心收录：

学科分类：07[理学] 070204[理学-等离子体物理] 0702[理学-物理学] 

基　　金：The project supported by National Natural Science Foundation of China under Grant No. 40390150 and the International Collaboration Research Team Program of the Chinese Academy of Sciences 

主　　题：generalized (r q) distribution function electrostatic waves damping 

摘      要：Non-Maxwellian particle distribution functions possessing high energy tail and shoulder in the profile of distribution function considerably change the damping characteristics of the waves. In the present paper Landau damping of electron plasma （Langmuir） waves and ion-acoustic waves in a hot, isotropic, unmagnetized plasma is studied with the generalized （r, q） distribution function. The results show that for the Langmuir oscillations Landau damping becomes severe as the spectral index r or q reduces. However, for the ion-acoustic waves Landau damping is more sensitive to the ion temperature than the spectral indices.