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Nonlinear wave interactions of kinetic sound waves
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- Brodin, Gert (author)
- Umeå universitet,Institutionen för fysik,Umeå University, Sweden
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- Stenflo, Lennart (author)
- Linköpings universitet,Teoretisk Fysik,Tekniska fakulteten
- (creator_code:org_t)
- 2015-08-14
- 2015
- English.
- In: Annales Geophysicae. - : Copernicus GmbH. - 0992-7689 .- 1432-0576. ; 33:8, s. 1007-1010
- Journal article (peer-reviewed)
Abstract
Subject headings
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- We reconsider the nonlinear resonant interaction between three electrostatic waves in a magnetized plasma. The general coupling coefficients derived from kinetic theory are reduced here to the low-frequency limit. The main contribution to the coupling coefficient we find in this way agrees with the coefficient recently presented in Annales Geophysicae. But we also deduce another contribution which sometimes can be important, and which qualitatively agrees with that of an even more recent paper. We have thus demonstrated how results derived from fluid theory can be improved and generalized by means of kinetic theory. Possible extensions of our results are outlined.
Subject headings
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- Magnetospheric physics (solar wind-magnetosphere interactions)
Publication and Content Type
- ref (subject category)
- art (subject category)
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