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Weakly damped acoustic-like ion waves in plasmas with non-Maxwellian ion distributions
Journal article   Peer reviewed

Weakly damped acoustic-like ion waves in plasmas with non-Maxwellian ion distributions

H. Gunell and F. Skiff
Physics of plasmas, Vol.8(8), pp.3550-3557
08/01/2001
DOI: 10.1063/1.1386428

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Abstract

Dispersion relations for ion-acoustic-like waves in plasmas with and without superthermal particles are calculated using a simple pole expansion of the distribution function for the ions. It is found that slow weakly damped modes exist in two-temperature plasmas, and the conditions when these modes appear are investigated. For plasmas with equal ion and electron temperatures weakly damped modes are found when there is a depletion of the high-energy tails.

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