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Article Dans Une Revue Physical Review Letters Année : 2019

Turbulence-Driven Ion Beams in the Magnetospheric Kelvin-Helmholtz Instability

L. Sorriso-Valvo
Alessandro Retinò
Olivier Le Contel
Denise Perrone

Résumé

The description of the local turbulent energy transfer and the high-resolution ion distributions measured by the Magnetospheric Multiscale mission together provide a formidable tool to explore the cross-scale connection between the fluid-scale energy cascade and plasma processes at subion scales. When the small-scale energy transfer is dominated by Alfvénic, correlated velocity, and magnetic field fluctuations, beams of accelerated particles are more likely observed. Here, for the first time, we report observations suggesting the nonlinear wave-particle interaction as one possible mechanism for the energy dissipation in space plasmas.
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hal-02272430 , version 1 (05-03-2024)

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L. Sorriso-Valvo, F. Catapano, Alessandro Retinò, Olivier Le Contel, Denise Perrone, et al.. Turbulence-Driven Ion Beams in the Magnetospheric Kelvin-Helmholtz Instability. Physical Review Letters, 2019, 122, pp.035102. ⟨10.1103/PhysRevLett.122.035102⟩. ⟨hal-02272430⟩
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