Jeans Instability of Self Gravitating Dust Cloud in Presence of Effective Electrostatic Pressure

作     者：Pratikshya Bezbaruah Pritam Das Prathana Borah Nilakshi Das 

作者机构：Department of Physics Tezpur University 

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

年 卷 期：2018年第69卷第8期

页      面：209-214页

核心收录：

学科分类：070802[理学-空间物理学] 07[理学] 0708[理学-地球物理学] 0704[理学-天文学] 0702[理学-物理学] 

主　　题：灰尘粒子 不稳定性 牛仔裤 压力 静电 移动 水动力学 粘性系数 

摘      要：The role of viscosity coefficient(η′), coulomb coupling parameter(Γ) and dust mass on the growth of jeans mode is investigated in strongly coupled dusty plasma using equations of Generalized Hydrodynamics(GH) Model. The novel aspect of this work is that the force arising due to electrostatic pressure caused by grain grain interaction has been included in the dynamics of dust particles. This force is found to play a significant role in counter balancing the self gravity effect, thereby reducing the growth rate of jeans instability. The present work may provide more physical insight in understanding the mechanisms behind formation of planetesimals, stars etc.