Magnetosonic Waves and Current Relaxation
Keywords:magnetosonic waves, magnetic diffusivity, Ohm’s law
In this work, inertial and diffusive effects are rediscussed on the propagation of magnetosonic waves in plasmas of finite conductivity, with basis on an extension of Ohm’s law. It is shown that when such effects are strong, the discussion can be pursued by defining suitably a perturbative parameter with the dimension of speed. The results presented here are part of a program which aims to investigate the influ-ence of inertia due to charged species on the propagation of hydromagnetic waves and instabilities in re-sistive plasmas.
Copyright (c) 2014 F. E. M. Silveira
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