Chen Ling; Wu Dejin
Source Publicationplasmasciencetechnology
AbstractThe plasma temperature (or the kinetic pressure) anisotropy is an intrinsic characteristic of a collisionless magnetized plasma. In this paper, based on the two-fluid model, a dispersion equation of low-frequency (ω〈〈ωci, ωci the ion gyrofrequency) waves, including the plasma temperature anisotropy effect, is presented. We investigate the properties of low-frequency waves when the parallel temperature exceeds the perpendicular temperature, and especially their dependence on the propagation angle, pressure anisotropy, and energy closures. The results show that both the instable Alfven and slow modes are purely growing. The growth rate of the Alfven wave is not affected by the propagation angle or energy closures, while that of the slow wave depends sensitively on the propagation angle and energy closures as well as pressure anisotropy. The fast wave is always stable. We also show how to elaborate the symbolic calculation of the dispersion equation performed using Mathematica Notebook.
Document Type期刊论文
First Author Affilication中国科学院紫金山天文台
Recommended Citation
GB/T 7714
Chen Ling,Wu Dejin. dispersionequationoflowfrequencywavesdrivenbytemperatureanisotropy[J]. plasmasciencetechnology,2012,014(010):880.
APA Chen Ling,&Wu Dejin.(2012).dispersionequationoflowfrequencywavesdrivenbytemperatureanisotropy.plasmasciencetechnology,014(010),880.
MLA Chen Ling,et al."dispersionequationoflowfrequencywavesdrivenbytemperatureanisotropy".plasmasciencetechnology 014.010(2012):880.
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