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首页> 外文期刊>Journal of Geophysical Research, A. Space Physics: JGR >Nonplanar dust-ion-acoustic double layers in a dusty nonthermal plasma
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Nonplanar dust-ion-acoustic double layers in a dusty nonthermal plasma

机译：非平面的dust-ion-acoustic两层尘土飞扬的低温等离子体

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摘要

The possibility for the formation of the dust-ion-acoustic (DIA) double layers (DLs) in a four-component dusty nonthermal plasma (containing nonthermal electrons, inertial ions, and stationary positively as well as negatively charged dust) has been theoretically investigated by deriving a modified Gardner (MG) equation. The latter has been numerically analyzed in order to identify the basic features of the nonplanar (cylindrical and spherical) DIA DLs. The DIA DLs (that are shown to be associated only with negative potential) have been found to exist for a suitable value of α or μ, where α (μ) is the parameter determining the number of nonthermal electrons (net dust charge density) in the plasma system under consideration. The implications of our results in some space dusty plasma environments have been discussed.
机译：的形成的可能性dust-ion-acoustic (DIA)双层(DLs)四分量尘土飞扬的低温等离子体(包含非热能的电子,离子惯性,和静止的积极以及消极理论上带电尘埃)调查通过推导修改加德纳(毫克)方程。后者已经为了数值分析识别空间的的基本特征(圆柱形和球形)DIA DLs。(只显示有关负电位)被发现存在一个合适的α值或者μ,α(μ)是参数确定的非热能的数量电子(净尘埃电荷密度)的等离子体系统考虑。我们的结果在某些空间尘埃等离子体讨论了环境。

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