Observation of Inertial Energy Cascade in Interplanetary Space Plasma

2007/02/09 by Luca Sorriso-Valvo, L. Sorriso‐Valvo, Raffaele Marino +13 · 9 citations
Biochemistry, Genetics and Molecular Biology · Physics and Astronomy · #Geomagnetism and Paleomagnetism Studies #Ionosphere and magnetosphere dynamics #Solar and Space Plasma Dynamics #astro-ph #nlin.CD #physics.plasm-ph

paper · pdf · doi:10.1103/physrevlett.99.115001

published as Phys.Rev.Lett.99:115001,2007

arxiv created 2007/02/09 · openalex publication_date 2007/09/12 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31

Abstract

Direct evidence for the presence of an inertial energy cascade, the most characteristic signature of hydromagnetic turbulence (MHD), is observed in the solar wind by the Ulysses spacecraft. After a brief rederivation of the equivalent of Yaglom's law for MHD turbulence, a linear relation is indeed observed for the scaling of mixed third-order structure functions involving Elsässer variables. This experimental result firmly establishes the turbulent character of low-frequency velocity and magnetic field fluctuations in the solar wind plasma.

Citations

• MHD structures, waves and turbulence in the solar wind: Observations and theories

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