Jeans instability in partially ionized self-gravitating dusty plasmas

被引：31

作者：

Verheest, F

Shukla, PK

Jacobs, G

Yaroshenko, VV

机构：

[1] Univ Ghent, Sterrenkundig Observ, B-9000 Ghent, Belgium

[2] Ruhr Univ Bochum, Fak Phys & Astron, D-44780 Bochum, Germany

[3] Max Planck Inst Extraterr Phys, D-85741 Garching, Germany

[4] Umea Univ, Dept Plasma Phys, S-90187 Umea, Sweden

来源：

PHYSICAL REVIEW E | 2003年 / 68卷 / 02期

关键词：

D O I：

10.1103/PhysRevE.68.027402

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

By employing the Boltzmann distributions for electrons and ions and by retaining the full dynamics of charged dust and neutral fluids, we derive a dispersion law for coupled dust-acoustic and neutral sound waves in partially ionized self-gravitating dusty plasmas. This dispersion law exhibits new classes of Jeans instability in both collisionless and highly collisional regimes. The result should help understand the origin of molecular cloud collapse in interstellar space.

引用

页码：4 / 027402

页数：4

共 16 条

[1]

[Anonymous], ASTROPHYSICAL PLASMA

[2] A PURELY GROWING INSTABILITY IN A GRAVITATING DUSTY PLASMA [J].