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Resistive drift instabilities for thermal and non-thermal electron distributions in electron-ion plasma

机译：电子离子等离子体中热和非热电子分布的电阻漂移不稳定性

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摘要

Local dispersion relations for resistive drift mode in a nonuniform magnetize plasma are derived for thermal and non-thermal distribution of electrons. The coupled mode equations are obtained by using Braginskii's transport equations for ions and electrons with thermal as well as non-thermal (Cairns and kappa) distribution for electrons. The dispersion relations are then analyzed both analytically as well as numerically for all distributions. It is found that growth rate is highest for Maxwellian, Intermediate for kappa and lowest for Cairns distribution. It has been found that increasing values of

Γ

(which estimate population of non-thermal electrons) for Cairn distributed electrons are able to stabilize the mode. Furthermore, increasing the values of

κ

(which is spectral index) for the kappa distributed electrons have destabilizing effects on the mode. The result might be useful in the interpretation of electromagnetic fluctuations in nonuniform magneto-plasma in which resistivity is a key element in calculation of drift instabilities in the presence of thermal or nonthermal electron distributions, such systems are extensively observed in laboratory as well as space plasma.

机译：对于电子的热和非热分布，导出了非均匀磁化等离子体中电阻漂移模式的局部色散关系。耦合模式方程是通过使用Braginskii的离子和电子的输运方程获得的，其中离子和电子具有电子的热分布以及非热分布（凯恩斯和kappa）。然后对所有分布进行色散关系的分析和数值分析。发现麦克斯韦式的增长率最高，kappa的增长率最高，而凯恩斯的增长率最低。已经发现

<凯恩分布电子的mrow> Γ（估计非热电子的数量）能够稳定模式。此外，增加的值κ分布电子的 κ（即光谱指数）对该模式具有不稳定作用。该结果可能有助于解释非均匀磁等离子体中的电磁涨落，其中电阻率是计算存在热或非热电子分布时漂移不稳定性的关键因素，此类系统在实验室以及空间等离子体中得到广泛观察。

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期刊名称 Heliyon
作者
Umer Rehman;
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年(卷),期 2018(4),12
年度 2018
页码 e01096
总页数 14
原文格式 PDF
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专利

1. The effects of nonthermal electron distributions on ion-temperature- gradient driven drift-wave instabilities in electron-ion plasma [J] . Batool N., Masood W., Mirza A.M. Physics of plasmas . 2012,第8期

机译：非热电子分布对电子-离子等离子体中离子温度梯度驱动的漂移波不稳定性的影响
2. The electron-ion streaming instabilities driven by drift velocities of the order of electron thermal velocity in a nonmagnetized plasma [J] . Guo J., Li B. Astrophysics and space science . 2013,第1期

机译：在非磁化等离子体中由电子热速度量级的漂移速度驱动的电子离子流不稳定性
3. Beam-plasma instability excited by non-thermal electrons with arbitrary distribution function and comparison with electron-cyclotron master [J] . Guang-Li Huang, De-Yu Wang, Ding-Yi Mao Journal of Plasma Physics . 1996,第2期

机译：具有任意分布函数的非热电子激发的束流等离子体不稳定性及其与电子回旋加速器的比较
4. A plasma sheet as a source of non-thermal particles - relativistic magnetic reconnection and relativistic drift kink instability in e~(+-)plasmas [C] . Seiji Zenitani, Masahiro Hoshino International Cosmic Ray Conference . 2003

机译：等离子体片作为非热颗粒的源 - 在E〜（+ - ）等离子体中的相对论磁性重构和相对论漂移扭结和相对漂移扭结不稳定
5. Electron-ion streaming instabilities of an electromagnetically accelerated plasma [D] . Choueiri, Edgar Yazid 1991

机译：电磁加速等离子体的电子离子流不稳定性
6. Electron Crescent Distributions as a Manifestation of Diamagnetic Drift in an Electron‐Scale Current Sheet: Magnetospheric Multiscale Observations Using New 7.5 ms Fast Plasma Investigation Moments [O] . A. C. Rager, J. C. Dorelli, D. J. Gershman, -1

机译：电子新月形分布作为电子尺度电流表中反磁性漂移的表现：使用新的7.5ms快速等离子体研究矩的磁层多尺度观测
7. The electron-ion streaming instabilities driven by drift velocities of the order of electron thermal velocity in a nonmagnetized plasma [O] . Guo, Jun, Li, Bo 2013

机译：由漂移速度驱动的电子 - 离子流不稳定性非磁化等离子体中电子热速度的顺序
8. Electron-Ion Two-Stream Instability in Anisotropic Isothermal Plasma [R] . Khalil, S. M. , Mohamed, B. F. 1986

机译：各向异性等温等离子体中的电子 - 离子双流不稳定性

Resistive drift instabilities for thermal and non-thermal electron distributions in electron-ion plasma

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