Journal article
Secondary dust density waves excited by nonlinear dust acoustic waves
Physics of plasmas, Vol.19(8), p.83702
08/2012
DOI: 10.1063/1.4742992
Abstract
Secondary dust density waves were observed in conjunction with high amplitude
(
n
d
/
n
d
0
>
2
)
dust acoustic waves (DAW) that were spontaneously excited in a dc glow discharge dusty plasma in the moderately coupled,
Γ
∼
1
,
state. The high amplitude dust acoustic waves produced large dust particle oscillations, displacements, and trapping. Secondary dust density waves were excited in the wave troughs of the high amplitude DAWs. The waveforms, amplitudes, wavelengths, and wave speeds of the primary DAWs and the secondary waves were measured. A dust-dust streaming instability is discussed as a possible mechanism for the production of the secondary waves.
Details
- Title: Subtitle
- Secondary dust density waves excited by nonlinear dust acoustic waves
- Creators
- J. R Heinrich - University of IowaS.-H Kim - University of IowaJ. K Meyer - University of IowaR. L Merlino - University of IowaM Rosenberg - University of California
- Resource Type
- Journal article
- Publication Details
- Physics of plasmas, Vol.19(8), p.83702
- DOI
- 10.1063/1.4742992
- ISSN
- 1070-664X
- eISSN
- 1089-7674
- Number of pages
- 5
- Grant note
- DOI: 10.13039/100000104, name: National Aeronautics and Space Administration, award: NNX10AR54G; DOI: 10.13039/100000015, name: U.S. Department of Energy, award: DE-FG01-04ER54795; DOI: 10.13039/100000001, name: National Science Foundation, award: PHY-0923141, PHY-0903808
- Language
- English
- Date published
- 08/2012
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984199857902771
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