EFFECTS OF HALL CURRENTS ON JEANS' GRAVITATIONAL INSTABILITY OF ROTATING UNBOUNDED PLASMA

被引：0
|
作者：
Khan, Aiyub [1 ]
Tak, S. S. [1 ]
Patni, Priyadarshi [2 ]
机构：
[1] Jai Narain Vyas Univ, Dept Math & Stat, Jodhpur 342005, Rajasthan, India
[2] Lachoo Mem Coll Sci & Technol, Dept Comp Sci, Jodhpur 342003, Rajasthan, India
来源：
ROMANIAN JOURNAL OF PHYSICS | 2011年 / 56卷 / 1-2期
关键词：
Gravitational instability; Hall current; rotation; viscosity; oblique magnetic field; Jean's criterion; PARTIALLY-IONIZED PLASMA; THERMALLY CONDUCTING PLASMA; OBLIQUE MAGNETIC-FIELD; ANISOTROPIC PLASMA;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The combined influence of the effects of Hall currents, magnetic resistivity and viscosity has been studied on the gravitational instability of rotating homogeneous unbounded plasma in an oblique magnetic field. The solution has been obtained through the normal mode technique and the dispersion relation has been derived. It is shown that Jean's criterion for gravitational instability remains unchanged. Solving numerically the dispersion relation for conditions prevailing in an astrophysical situation, it is found that the Coriolis force, viscosity, Hall currents and finite conductivity have stabilizing influence on the instability of the plasma of disturbance.
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页码：209 / 223
页数：15
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