Alfvén waves in dusty plasmas with plasma particles described by anisotropic kappa distributions

Citation:
Alfvén waves in dusty plasmas with plasma particles described by anisotropic kappa distributions, Galvão, R. A., Ziebell L. F., Gaelzer R., and de Juli M. C. , Physics of Plasmas, December, Volume 19, Number 12, p.123705, (2012)

Abstract:

We utilize a kinetic description to study the dispersion relation of Alfvén waves propagating parallelly to the ambient magnetic field in a dusty plasma, taking into account the fluctuation of the charge of the dust particles, which is due to inelastic collisions with electrons and ions. We consider a plasma in which the velocity distribution functions of the plasma particles are modelled as anisotropic kappa distributions, study the dispersion relation for several combinations of the parameters κ∥ and κ⊥, and emphasize the effect of the anisotropy of the distributions on the mode coupling which occurs in a dusty plasma, between waves in the branch of circularly polarized waves and waves in the whistler branch.

Notes:

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