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Nonlinear wave interactions of kinetic sound waves
Umeå University, Faculty of Science and Technology, Department of Physics.
2015 (English)In: Annales Geophysicae, ISSN 0992-7689, E-ISSN 1432-0576, Vol. 33, no 8, 1007-1010 p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2015. Vol. 33, no 8, 1007-1010 p.
Keyword [en]
Magnetospheric physics (solar wind-magnetosphere interactions)
National Category
Fusion, Plasma and Space Physics
URN: urn:nbn:se:umu:diva-109824DOI: 10.5194/angeo-33-1007-2015ISI: 000360651100007OAI: diva2:859231
Available from: 2015-10-06 Created: 2015-10-06 Last updated: 2015-10-06Bibliographically approved

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Brodin, Gert
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