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Laboratory measurements of the physics of auroral electron acceleration by Alfvén waves [PDF]
Nature Communications, 2021 It was predicted that Alfvén waves can account for the acceleration of precipitating auroral electrons. Here, the authors show laboratory measurements of the resonant transfer of energy from Alfvén waves to electrons under conditions relevant to the ...
J. W. R. Schroeder +6 more
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Alfvén waves in space and astrophysical dusty plasmas [PDF]
Nonlinear Processes in Geophysics, 2014 In this paper, we present some results of previous works on Alfvén waves in a dusty plasma in different astrophysical and space regions by taking into account the effect of superthermal particles on the dispersive characteristics.
V. Jatenco-Pereira +2 more
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Non-Linear Damping of Surface Alfvén Waves Due to Uniturbulence [PDF]
Frontiers in Astronomy and Space Sciences, 2022 This investigation is concerned with uniturbulence associated with surface Alfvén waves that exist in a Cartesian equilibrium model with a constant magnetic field and a piece-wise constant density.
Rajab Ismayilli +4 more
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The Astrophysical JournalWe have studied the propagation of inertial Alfvén waves through parallel gradients in the Alfvén speed using the Large Plasma Device at the University of California, Los Angeles. The reflection and transmission of Alfvén waves through inhomogeneities in
Garima Joshi +6 more
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Nonlinear Interaction of Low-frequency Alfvén Waves and Ions
The Astrophysical Journal, 2023 The interaction between Alfvén waves and particles is a critical phenomenon in space and laboratory plasmas, and it has been observed that low-frequency Alfvén waves can accelerate and heat ions through subharmonic resonant interactions.
Xianshu Wu +4 more
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Elastic Alfven waves in elastic turbulence [PDF]
Nature Communications, 2019 An analog of Alfven waves in plasma with velocity set by magnetic tension has been predicted to appear in elastic turbulence. Here the authors observe elastic Alfven waves in elastic turbulence of polymer solution flow between two obstacles where the ...
Atul Varshney, Victor Steinberg
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Ion‐Scale Kinetic Alfvén Turbulence: MMS Measurements of the Alfvén Ratio in the Magnetosheath [PDF]
Geophysical Research Letters, 2018 Turbulence in the Earth's magnetosheath at ion kinetic scales is investigated with the magnetospheric multiscale spacecraft. Several possibilities in the wave paradigm have been invoked to explain plasma turbulence at ion kinetic scales such as kinetic ...
O. W. Roberts +12 more
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Second-order perturbations in Alfvén waves in finite pressure plasma
Solar-Terrestrial Physics, 2022 It is shown first that in finite pressure plasma, just as in cold plasma, Alfvén waves created by an initial perturbation generate plasma flows and decreases in the magnetic field, which propagate along with these waves.
Dmitrienko I. S.
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Alfvén wave characteristics of equatorial plasma irregularities in the ionosphere derived from CHAMP observations [PDF]
Frontiers in Physics, 2014 We report magnetic field observations of the components transverse to the main field in the frequency range 1–25 Hz from times of equatorial plasma irregularity crossings. These field variations are interpreted as Alfvénic signatures accompanying intermediate-scale (150 m–4 km) plasma density depletions.
Lühr, H. +3 more
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Midnight sector observations of auroral omega bands [PDF]
, 2011 We present observations of auroral omega bands on 28 September 2009. Although generally associated with the substorm recovery phase and typically observed in the morning sector, the features presented here occurred just after expansion phase onset and ...
Wild, J.A. +16 more
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