The transformation of long scale Alfvén waves in space dusty plasma

Details The transformation of long scale Alfvén waves in space dusty plasma The transformation of long scale Alfvén waves in space dusty plasma

Jun 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005kfnts...5..192y&link_type=abstract

Kinematika i Fizika Nebesnykh Tel, Suppl, v. 5, p. 192-195

Physics

Scientific paper

A nonlinear mechanism of the generation of kinetic Alfvén waves (KAW) on dust plasma with small plasma parameter β is proposed. As the generation mechanism, the parametric instability where a pumping wave is the MHD Alfvén wave is considered. On the basis of the three-fluid MHD, the nonlinear dispersion equation describing the three-wave interaction is deduced and its solution is derived. Obtained instability growth rate is determined by parameters of dust plasma particles. The nonlinear process under consideration can take place both in laboratory and in space plasma with small plasma parameter β. As an application of theoretical results, we consider Saturn's F-ring.

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