Results 41 to 50 of about 9,578 (225)
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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Coronal heating and wind acceleration by nonlinear Alfvén waves – global simulations with gravity, radiation, and conduction [PDF]
Nonlinear Processes in Geophysics, 2008 We review our recent results of global one-dimensional (1-D) MHD simulations for the acceleration of solar and stellar winds. We impose transverse photospheric motions corresponding to the granulations, which generate outgoing Alfvén waves.
T. K. Suzuki
doaj
Resonant magnetohydrodynamic waves in high-beta plasmas [PDF]
, 2009 When a global magnetohydrodynamic (MHD) wave propagates in a weakly dissipative inhomogeneous plasma, the resonant interaction of this wave with either local Alfven or slow MHD waves is possible. This interaction occurs at the resonant position where the
Ruderman, M.S.
core +1 more source
Alfven wave elgenmode and Alfven resonance.
Kakuyūgō kenkyū, 1985 The main purpose of this article is to introduce as simply as possible the current topics concerned with the Alfven waves ; new MHD surface waves, other eigenmodes, and the Alfven resonance. These play an important role for heating plasma by applying an rf field of ion cyclotron range of frequency to a plasma column.
openaire +2 more sources
Fully Kinetic Simulations of Ion‐Acoustic Waves in Asymmetric Reconnection With Cold Ions
Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.Abstract In collisionless plasma, ion‐acoustic wave (IAW) is an important candidate for enhancing resistivity and viscosity, yet their presence and role in magnetic reconnection remain poorly understood. Here, we employ 2.5‐D particle‐in‐cell simulations to investigate IAWs in asymmetric magnetopause reconnection involving a cold ion population ...
Liangjin Song +9 more
wiley +1 more source
Auroral vortex street formed by the magnetosphere–ionosphere coupling instability [PDF]
Annales Geophysicae, 2015 By performing three-dimensional magnetohydrodynamic simulations including Alfvén eigenmode perturbations most unstable to the ionospheric feedback effects, we examined the auroral vortex street that often appears just before substorm onset.
Y. Hiraki
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STABILITY OF ALFVEN WINGS IN HMHD
Anales (Asociación Física Argentina), 2021 A conducting source moving uniformly through a magnetized plasma generates, among a variety of perturbations,Alfvén waves. Alfvén waves can build up structures in the plasma called Alfvén wings.
P. A. Sallago
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, 2013 Ion-neutral collisions may lead to the damping of Alfven waves in chromospheric and prominence plasmas. Neutral helium atoms enhance the damping in certain temperature interval, where the ratio of neutral helium and neutral hydrogen atoms is increased ...
Khodachenko, M. L. +2 more
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Absolute and convective instabilities of parallel propagating circularly polarized Alfven waves: Beat instability [PDF]
, 2004 Ruderman and Simpson [Phys. Plasmas 11, 4178 (2004)] studied the absolute and convective decay instabilities of parallel propagating circularly polarized Alfven waves in plasmas where the sound speed c(S) is smaller than the Alfven speed upsilon(A).
Briggs R. J. +8 more
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Modeling the EMIC Wave‐Induced Acceleration of Energetic Protons in the Io Footprint Tail
Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.Abstract The Io footprint tail (FPT) region is crucial for studying the interactions between Io and Jupiter's magnetosphere. In this region, Juno spacecraft observed significant acceleration of energetic protons, concurrently with electromagnetic ion cyclotron (EMIC) waves below the proton gyro‐frequency.
Peng Lu +6 more
wiley +1 more source