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Ion plasma waves in dusty plasmas: Halley's comet

Formisano, V.; Giordano, M.; de Angelis, U.

We investigate ion waves in a plasma in the presence of massive charged dust particles, a common space-plasma component now known to exist also in planetary rings and comets. We derive an equation describing low-frequency electrostatic perturbations on a non-homogeneous background, where the inhomogeneity is due to a distribution of charged grains…