THE RESONANCE-ABSORPTION OF WAVE ENERGY IN A DUSTY PLASMA

The modification of the Alfven resonance absorption mechanism due to t he presence of charged dust grains is considered Damping due to the ch arging of the grains is included, and it is shown that a dissipative s hort-wavelength made exists close to the resonant frequency. Resonance absorption of a wave launched into a density gradient where resonance is encountered will occur via mode conversion into the dissipative mo de with subsequent strong dissipation.