Dispersion and damping rate of Langmuir wave in space plasma with regularized Kappa distributed electrons

作     者：Yong LIU Xu CHEN 刘勇;陈旭

作者机构：School of SciencesNantong UniversityNantong 226019People's Republic of China Xinglin CollegeNantong UniversityNantong 226019People’s Republic of China 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2022年第24卷第1期

页      面：47-52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] 

主　　题：Langmuir wave Kappa distribution damping rate exponential cutoff space plasma 

摘      要：The dispersion of Langmuir wave(LW)in an unmagnetized collisionless plasma with regularized Kappa distributed electrons is investigated from the kinetic *** frequency and damping rate of LW are analyzed for the parameters relating to the source region of a typeⅢsolar radio *** is found that the linear behavior of LW is greatly modified by the suprathermal indexκand the exponential cutoff parameterα.In the regionκ1.5,the damping rate of LW will be much larger than the one with Maxwellian distributed ***,the nonlinear process of LW in lowκregion may exhibit different properties in comparison with the one in largeκregion.