Journal
PHYSICAL REVIEW E
Volume 89, Issue 1, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevE.89.013103
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Funding
- NSF [PHY-1201978, PHY-0813153, PHY-0715227, PHY-1105005, 1162645]
- NASA [NNX10AR54G, NNX07AD22G]
- NASA/JPL [RSA 1471978, 1472388, OTKA NN103150]
- NASA [NNX10AR54G, 123753] Funding Source: Federal RePORTER
- Division Of Physics
- Direct For Mathematical & Physical Scien [0813153] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1162645, 1201978, 1105005] Funding Source: National Science Foundation
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In a plasma containing charged dust grains, the dust acoustic instability (DAI) can be driven by ions streaming through the dust with speed less than the ion thermal speed. When the dust is strongly coupled in the liquid phase, the dispersion relation of the dust acoustic modes changes in a way that leads to an enhancement of the growth rate of the DAI. In this paper, we show how strong coupling enhances the DAI growth rate and consider application to microgravity experiments where subthermal ion flows are in general possible.
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