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Turbulence-driven ion beams in the magnetospheric Kelvin-Helmholtz instability

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Title: Turbulence-driven ion beams in the magnetospheric Kelvin-Helmholtz instability
Authors: Sorriso-Valvo, L
Catapano, F
Retinò, A
Le Contel, O
Perrone, D
Roberts, OW
Coburn, JT
Panebianco, V
Valentini, F
Perri, S
Greco, A
Malara, F
Carbone, V
Veltri, P
Pezzi, O
Fraternale, F
Di Mare, F
Marino, R
Giles, B
Moore, TE
Russell, CT
Torbert, RB
Burch, JL
Khotyaintsev, YV
Item Type: Journal Article
Abstract: The description of the local turbulent energy transfer, andthe high-resolution ion distributionsmeasured by the Magnetospheric Multiscale mission, together provide a formidable tool to explorethe cross-scale connection between the fluid-scale energy cascade and plasma processes at sub-ionscales. When the small-scale energy transfer is dominated byAlfv ́enic, correlated velocity and magnetic field fluctuations, beams of accelerated particlesare more likely observed. Here, for thefirst time we report observations suggesting the nonlinear wave-particle interaction as one possiblemechanism for the energy dissipation in space plasmas.
Issue Date: 24-Jan-2019
Date of Acceptance: 8-Jan-2019
URI: http://hdl.handle.net/10044/1/66358
DOI: https://dx.doi.org/10.1103/PhysRevLett.122.035102
ISSN: 0031-9007
Publisher: American Physical Society
Journal / Book Title: Physical Review Letters
Volume: 122
Copyright Statement: © 2019 American Physical Society
Sponsor/Funder: Science and Technology Facilities Council (STFC)
Funder's Grant Number: ST/N000692/1
Keywords: Science & Technology
Physical Sciences
Physics, Multidisciplinary
Physics
SOLAR-WIND
MAGNETIC RECONNECTION
PLASMA
INTERMITTENCY
SIGNATURES
CASCADE
SCALES
02 Physical Sciences
General Physics
Publication Status: Published
Article Number: 035102
Appears in Collections:Space and Atmospheric Physics
Physics
Faculty of Natural Sciences