Physics – Plasma Physics
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsh51d1711j&link_type=abstract
American Geophysical Union, Fall Meeting 2010, abstract #SH51D-1711
Physics
Plasma Physics
[4455] Nonlinear Geophysics / Nonlinear Waves, Shock Waves, Solitons, [7836] Space Plasma Physics / Mhd Waves And Instabilities, [7839] Space Plasma Physics / Nonlinear Phenomena, [7867] Space Plasma Physics / Wave/Particle Interactions
Scientific paper
A generalized linear dispersion relation of waves in a strongly magnetized, compressible, homogeneous and isotropic quasineutral plasma is derived. 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.
Dasgupta Basudeb
Janaki M. S.
Shaikh Dastgeer
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