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

被引：7

作者：

Bezbaruah, Pratikshya ^{[1
]}

Das, Pritam ^{[1
]}

Borah, Prathana ^{[1
]}

Das, Nilakshi ^{[1
]}

机构：

[1] Tezpur Univ, Dept Phys, Tezpur 784028, Assam, India

来源：

COMMUNICATIONS IN THEORETICAL PHYSICS | 2018年 / 70卷 / 02期

关键词：

generalized hydrodynamics model; interstellar medium; planetesimal; PLASMA; DENSITY;

D O I：

10.1088/0253-6102/70/2/209

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The role of viscosity coefficient (eta'), coulomb coupling parameter (Gamma) 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.

引用

页码：209 / 214

页数：6

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