Dust-acoustic waves and stability in the permeating dusty plasma: II. Power-law distributions

Abstract

The dust-acoustic waves and their stability driven by a flowing dusty plasma when it cross through a static (target) dusty plasma (the so-called permeating dusty plasma) are investigated when the components of the dusty plasma obey the power-law q-distributions in nonextensive statistics. The frequency, the growth rate and the stability condition of the dust-acoustic waves are derived under this physical situation, which express the effects of the nonextensivity as well as the flowing dusty plasma velocity on the dust-acoustic waves in this dusty plasma. The numerical results illustrate some new characteristics of the dust-acoustic waves, which are different from those in the permeating dusty plasma when the plasma components are the Maxwellian distribution. In addition, we show that the flowing dusty plasma velocity has a significant effect on the dust-acoustic waves in the permeating dusty plasma with the power-law q-distribution.

20 pages, 10 figures, 41 references

References in corpus (6)

• Dust charging processes in the nonequilibrium dusty plasma with nonextensive power-law distribution
• Power-law distributions and fluctuation-dissipation relation in the stochastic dynamics of two-variable Langevin equations
• Current-less solar wind driven dust acoustic instability in cometary plasma
• Secondary electron emissions and dust charging currents in the nonequilibrium dusty plasma with power-law distributions
• Acoustic Kappa-Density Fluctuation Waves in Suprathermal Kappa Function Fluids
• Dust-acoustic waves and stability in the permeating dusty plasma: I. Maxwellian distribution

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• The power-law reaction rate coefficient for barrierless reactions
• A nonextensive approach for understanding the van der Waals' equation