2010/05/26 by Dastgeer Shaikh, B. Dasgupta, Shaikh, Dastgeer +3
Physics and Astronomy · #FOS: Physical sciences #Ionosphere and magnetosphere dynamics #Solar and Space Plasma Dynamics #Space Physics (physics.space-ph) #physics.space-ph
paper · pdf · doi:10.48550/arxiv.1005.4902
This paper is accepted in the Journal of Plasma Physics
arxiv created 2010/05/26 · openalex publication_date 2010/05/26 · arxiv updated 2010/05/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We derive a generalized linear dispersion relation of waves in a strongly magnetized, compressible, homogeneous and isotropic quasineutral plasma. Starting from a two fluid model, describing distinguishable electron and ion fluids, we obtain a six order linear dispersion relation of magnetized waves that contains effects due to electron and ion inertia, finite plasma beta and angular dependence of phase speed. We investigate propagation characteristics of these magnetized waves in a regime where scale lengths are comparable with electron and ion inertial length scales. This regime corresponds essentially to the solar wind plasma where length scales, comparable with ion cyclotron frequency, lead to dispersive effects. These scales in conjunction with linear waves present a great deal of challenges in understanding the high frequency, small scale dynamics of turbulent fluctuations in the solar wind plasma.