Global Scale-Invariant Dissipation in Collisionless Plasma Turbulence
- 14 August 2009
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 103 (7), 075006
- https://doi.org/10.1103/physrevlett.103.075006
Abstract
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 monoscaling in the dissipation range. This presents a strong observational constraint on theories of dissipation mechanisms in turbulent collisionless plasmas.Keywords
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