Electrostatic Modes of Dusty Plasmas in a Uniform Magnetic Field

被引:0
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作者
王晓钢
王春华
机构
基金
中国国家自然科学基金;
关键词
Electrostatic Modes of Dusty Plasmas in a Uniform Magnetic Field; mode;
D O I
暂无
中图分类号
O536 [辐射与测量];
学科分类号
070204 ;
摘要
Electrostatic dusty plasma waves in a uniform magnetic field are studied. Unless the magnetic field is extremely strong, the dust particles can hardly be magnetized, while however, electrons and ions are easily done so. Electrostatic modes in such dusty plasmas can then be investigated by making use of the "moderately magnetized" assumption of magnetized electrons and ions, and unmagnetized dust particles. In a high frequency range, due to the existence of dust component, both frequencies of Lang- muir waves (parallel to the magnetic field) and upper hybrid waves (perpendicular to the field) are reduced. In the frequency range of ion waves, besides the effect on dust-ion-acoustic waves propagating parallel to the magnetic field, the frequency of ion cyclotron waves perpendicular to the magnetic field is also enhanced. In a very low dust frequency range, we find an "ion-cyclotron- dust-acoustic" mode propagating across the field line with a frequency even slower than dust acoustic waves.
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页码:1101 / 1106
页数:6
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