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Large scale magnetic fields and coherent structures in nonuniform unmagnetized plasma
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Astronomy and Space Physics.
2006 (English)In: Physics of Plasmas, ISSN 1070-664X, Vol. 13, no 7, 072308- p.Article in journal (Refereed) Published
Abstract [en]

The properties of streamers and zonal magnetic structures in magnetic electron drift mode turbulence are investigated. The stability of such large scale structures is investigated in the kinetic and the hydrodynamic regime, for which an instability criterion similar to the Lighthill criterion for modulational instability is found. Furthermore, these large scale flows can undergo further nonlinear evolution after initial linear growth, which can lead to the formation of long-lived coherent structures consisting of self-bound wave packets between the surfaces of two different flow velocities with an expected modification of the anomalous electron transport properties.

Place, publisher, year, edition, pages
2006. Vol. 13, no 7, 072308- p.
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-26214DOI: 10.1063/1.2234289ISI: 000239424400018OAI: oai:DiVA.org:uu-26214DiVA: diva2:53988
Available from: 2007-02-15 Created: 2007-02-15 Last updated: 2011-06-28Bibliographically approved

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