The instability analysis of self-gravitation systems under the perturbation with orbital angular momentum  

作　　者：杨巧云 谭玲 陈辉 刘三秋 Qiaoyun Yang;Ling Tan;Hui Chen;Sanqiu Liu(Jiangxi Province Key Laboratory of Fusion and Information Control,Department of Physics,Nanchang University,Nanchang 330031,China)

机构地区：[1]Jiangxi Province Key Laboratory of Fusion and Information Control,Department of Physics,Nanchang University,Nanchang 330031,China

出　　处：《Communications in Theoretical Physics》2023年第4期101-105,共5页理论物理通讯（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos.11763006 and 11863004);the fund from the Jiangxi Provincial Key Laboratory of Fusion and Information Control (Grant No.20171BCD40005);the Project of Scientific and Technological Innovation Base of Jiangxi Province (Grant No.20203CCD46008)。

摘　　要：Based on plasma kinetic theory, the instabilities of self-gravitation systems under perturbation with orbital angular momentum(OAM) are investigated, and the concept of twisted Jeans mode is introduced to describe the new phenomenon. The result shows that the growth rate of the Jeans instability is enhanced with the OAM parameter increased, while the critical wave number is consistent with the classical Jeans critical value. It is expected that the present results would give more insight into the evolution and dynamics of a self-gravitational system.

关 键 词：self-gravitating systems Jeans instability orbital angular momentum 

分 类 号：O431.1[机械工程—光学工程]