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MHD Wave Interaction within a Plasma Perturbed by Alfvén Waves
Author(s) -
Laur Fenia,
Zoler D.,
Thirer N.
Publication year - 1977
Publication title -
beiträge aus der plasmaphysik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0005-8025
DOI - 10.1002/ctpp.19770170106
Subject(s) - instability , physics , amplitude , plasma , magnetohydrodynamics , two stream instability , quantum electrodynamics , plasma oscillation , mechanics , classical mechanics , computational physics , optics , quantum mechanics
The interaction between fast magnetoacoustic waves within a plasma with periodical nonhomogeneities, perturbed by Alfvén waves has been studied. It has been ascertained the appearance of phenomena of a decay instability and an instability involving an increase of the amplitude oscillations. A study of the influence of perturbed plasma parameters on these instability phenomena has been made. It has been found that the optimal perturbing frequency for giving rise to the instability phenomenon is twice the frequency of fast magnetoacoustic waves.