Drift-Alfvén waves at the arbitrary ion Larmor radius scale in dusty plasmas

O. Onishchenko (1, 2) , O. Pokhotelov (1) , V. Krasnoselskikh (3)

1 IPE - Schmidt United Institute of Physics of the Earth [Moscow]
2 IKI - Space Research Institute of the Russian Academy of Sciences
3 LPC2E - Laboratoire de Physique et Chimie de l'Environnement et de l'Espace

A set of magneto-hydrodynamic (MHD) equations that govern the non-linear dynamics of drift-Alfven waves with arbitrary spatial scales in comparison with the ion Larmor radius is derived. It is shown that in the linear limit a Fourier transform of these equations yields the dispersion relation which in the so-called Pade approximation corresponds to the fully kinetic theory.

Domaines: Planète et Univers [physics]

O. Onishchenko, O. Pokhotelov, V. Krasnoselskikh. Drift-Alfvén waves at the arbitrary ion Larmor radius scale in dusty plasmas. Journal of Plasma Physics, 2010, 76 (3-4), pp.553-557. ⟨10.1017/S002237780999081X⟩. ⟨insu-02515050⟩