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dc.contributor.authorNakariakov, VMen_US
dc.contributor.authorTsiklauri, Den_US
dc.contributor.authorArber, TDen_US
dc.date.accessioned2016-04-12T12:24:59Z
dc.date.submitted2016-03-23T12:17:07.925Z
dc.identifier.urihttp://qmro.qmul.ac.uk/xmlui/handle/123456789/11780
dc.descriptionRevTex4, 4 pages, 4 figures
dc.descriptionRevTex4, 4 pages, 4 figuresen_US
dc.descriptionRevTex4, 4 pages, 4 figuresen_US
dc.description.abstractA new mechanism for the enhanced generation of compressible fluctuations by Alfven waves is presented. A strongly nonlinear regime of Alfven wave phase-mixing is numerically simulated in a one-dimensionally inhomogeneous plasma of finite temperature. It is found that the inhomogeneity of the medium determines the efficiency of nonlinear excitation of magnetoacoustic waves. The level of the compressible fluctuations is found to be higher (up to the factor of two) in inhomogeneous regions. The amplitude of the generated magnetoacoustic wave can reach up to 30% of the source Alfven wave amplitude, and this value is practically independent of the Alfven wave amplitude and the steepness of Alfven speed profile. The highest amplitudes of compressible disturbances are reached in plasmas with beta of about 0.5. The further growth of the amplitude of compressible fluctuations is depressed by saturation.en_US
dc.subjectastro-phen_US
dc.subjectastro-phen_US
dc.titleNon-resonant nonlinear coupling of magnetohydrodynamic waves in inhomogeneous mediaen_US
dc.typeArticle
pubs.author-urlhttp://arxiv.org/abs/astro-ph/0110493v1en_US
pubs.notesNot knownen_US


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