Alfvén wave

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Alfvén wave

[äl′vān ‚wāv]
(physics)
A hydromagnetic shear wave which moves along magnetic field lines; a major accelerative mechanism of charged particles in plasma physics and astrophysics.
References in periodicals archive ?
The beauty of (136) is that it is an analogous to Alfven wave propagation [55,56] associated with magnetic monopoles, and the same way (137) describes the counterpart of Alfven wave propagation associated with the electrons.
The first two roots [[omega].sub.1], [[omega].sub.2] relate to the magnetic Alfven waves, the next four roots specify magnetosonic waves of different directions of propagation (the so-called slow and fast MHD waves of different direction of propagation), and the last root [[omega].sub.7] corresponds to the entropy mode.
(2012) Connecting the Sun and the solar wind: The first 2.5-dimensional self-consistent MHD simulation under the Alfven wave scenario.
The Alfven waves in this case tended to have great consistency in height-or amplitude, which is the common term when talking about waves-but they are random in direction.
Nakamura et al., "Giant chromospheric anemone jet observed with Hinode and comparison with magnetohydrodynamic simulations: Evidence of propagating Alfven waves and magnetic reconnection," The Astrophysical Journal Letters, vol.
The researchers studied waves known as magnetosonic waves, and they are a hybrid of sound waves and magnetic waves called Alfven waves. Unlike sound waves on Earth, which oscillate several hundred times per second, these waves oscillate about once every four hours-and are about 10 times the length of Earth.
This equation models Alfven waves and magnetohydrodynamic waves in plasmas and also model subpicosecond or femtosecond pulses in single-mode optical fibers in nonlinear optics [11, 12].
11:15 MEASUREMENTS OF THE NONLINEAR INTERACTION BETWEEN COUNTERPROPAGATING ALFVEN WAVES, D.J.
Takeda, "Modified nonlinear Schrodinger equation for Alfven waves propagating along the magnetic field in cold plasmas," Journal of the Physical Society of Japan, vol.
The gyrokinetic codes contain a more self-consistent description of the coupling of the Alfven eigenmodes to kinetic Alfven waves. The linear gyrokinetic calculations were more consistent with the experimental observations of higher damping rates in JET plasmas where continuum damping was avoided.
First, we studied the dispersion relation of parallel propagating EMIC waves, which have three modes: H-EMIC waves, [.sup.4.He]-EMIC waves, and Alfven waves. Second, we investigated the preferential heating of [.sup.3.He] and heavy ions by the EMIC waves.
The magnetic waves, called Alfven waves, are considered the most plausible explanation for the transfer of so much energy from the sun's surface to its corona.