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

Tipo
Artigo
Data de publicação
2012
Periódico
Physics of Plasmas
Citações (Scopus)
5
Autores
Galvao R.A.
Ziebell L.F.
Gaelzer R.
De Juli M.C.
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Resumo
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. © 2012 American Institute of Physics.
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Assuntos Scopus
Circularly polarized waves , Dispersion relations , Dusty plasmas , Inelastic collision , Kappa distribution , Kinetic description , Mode coupling , Plasma particles
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