Effect of ion drag on a pulsational mode of gravitational collapse

被引：6
|
作者：
Yang, Wei-Heng [1 ,2 ]
Chen, Hui [1 ,2 ]
Liu, San-Qiu [1 ,2 ]
机构：
[1] Nanchang Univ, Dept Phys, Nanchang 330031, Jiangxi, Peoples R China
[2] Jiangxi Prov Key Lab Fus & Informat Control, Nanchang 330031, Jiangxi, Peoples R China
来源：
COMMUNICATIONS IN THEORETICAL PHYSICS | 2020年 / 72卷 / 07期
基金：
中国国家自然科学基金;
关键词：
ion drag; Jeans instability; PMGC; dusty plasma; JEANS INSTABILITY; SOLITARY WAVES; DUST GRAINS; PLASMAS; CLOUDS; MASS;
D O I：
10.1088/1572-9494/ab8a1e
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The effect of ion drag on the pulsational mode of gravitational collapse (PMGC) is investigated within the partially charged dusty plasma model by fluid dynamics. It is found that the ion drag force significantly enhances the instability of the PMGC. In addition, it is shown that the instability of the PMGC is influenced by the ratio of the abundances of charged to neutral grains. These results can be relevant for the planetesimal formation in dark interstellar clouds.
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页数：5
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