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.
Ziebell L.F.
Gaelzer R.
De Juli M.C.
Orientador
Título da Revista
ISSN da Revista
Título de Volume
Membros da banca
Programa
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.
Descrição
Palavras-chave
Assuntos Scopus
Circularly polarized waves , Dispersion relations , Dusty plasmas , Inelastic collision , Kappa distribution , Kinetic description , Mode coupling , Plasma particles