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Global Scale-Invariant Dissipation in Collisionless Plasma Turbulence
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Swedish Institute of Space Physics, Uppsala Division.
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2009 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 103, no 7, 075006- p.Article in journal (Refereed) Published
Abstract [en]

A higher-order multiscale analysis of the dissipation range of collisionless plasma turbulence is presented using in situ high-frequency magnetic field measurements from the Cluster spacecraft in a stationary interval of fast ambient solar wind. The observations, spanning five decades in temporal scales, show a crossover from multifractal intermittent turbulence in the inertial range to non-Gaussian mono-scaling in the dissipation range. This presents a strong observational constraint on theories of dissipation mechanisms in turbulent collisionless plasmas.

Place, publisher, year, edition, pages
2009. Vol. 103, no 7, 075006- p.
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-148293DOI: 10.1103/PhysRevLett.103.075006ISI: 000269063300035OAI: oai:DiVA.org:uu-148293DiVA: diva2:401826
Available from: 2011-03-04 Created: 2011-03-04 Last updated: 2011-03-04Bibliographically approved

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