Finite beta effects on low- and high-frequency magnetosonic waves in a two-ion-species plasma

A magnetosonic wave propagating perpendicular to a magnetic field in a two-ion-species plasma has two branches, high-frequency and low-frequency modes. The finite beta effects on these modes are analyzed theoretically on the basis of the three-fluid model with finite ion and electron pressures. Firs...

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Bibliographic Details
Published in:Physics of plasmas 2013-08, Vol.20 (8)
Main Authors: Toida, Mieko, Aota, Yukio
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ACCELERATION
AMPLITUDES
Beta
BETA RATIO
CYCLOTRON FREQUENCY
DAMPING
DISPERSION RELATIONS
Dispersions
ELECTROMAGNETIC RADIATION
ELECTRONS
ENERGY DENSITY
ENERGY TRANSFER
HEAVY IONS
ION ACOUSTIC WAVES
KORTEWEG-DE VRIES EQUATION
MAGNETIC FIELDS
MAGNETOACOUSTIC WAVES
Mathematical analysis
Mathematical models
Plasma (physics)
PLASMA DENSITY
PLASMA PRESSURE
Wave propagation
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Summary:A magnetosonic wave propagating perpendicular to a magnetic field in a two-ion-species plasma has two branches, high-frequency and low-frequency modes. The finite beta effects on these modes are analyzed theoretically on the basis of the three-fluid model with finite ion and electron pressures. First, it is shown that the Korteweg-de Vries (KdV) equation for the low-frequency mode is valid for amplitudes ε
ISSN:1070-664X
1089-7674
DOI:10.1063/1.4817169