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    Global Scale-Invariant Dissipation in Collisionless Plasma Turbulence

    Publication date: 14 Aug 2009

    Authors: Kiyani, K.H. et al.

    Journal: Phys. Rev. Lett.
    Volume: 103
    Issue: 7
    ID: 075006
    Year: 2009

    Copyright: The American Physical Society

    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.

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    Last Update: 08 Sep 2009

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