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Alfvén-fast wave coupling in a 2D non-uniform medium

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dc.contributor.authorDavies, Rachel
dc.contributor.authorWright, Andrew N.
dc.date.accessioned2023-10-16T10:30:02Z
dc.date.available2023-10-16T10:30:02Z
dc.date.issued2023-10-10
dc.identifier294076301
dc.identifier19a42833-ba63-4b7a-878c-382664cd7dfb
dc.identifier85173745977
dc.identifier.citationDavies , R & Wright , A N 2023 , ' Alfvén-fast wave coupling in a 2D non-uniform medium ' , Earth and Space Science , vol. 10 , no. 10 , e2023EA003167 . https://doi.org/10.1029/2023ea003167en
dc.identifier.issn2333-5084
dc.identifier.otherORCID: /0000-0002-9877-1457/work/144461342
dc.identifier.urihttps://hdl.handle.net/10023/28532
dc.descriptionFunding: The authors acknowledge financial support by the UK’s Science and Technology Facilities Council (STFC). R.D. was supported by STFC Doctoral Training Partnership Grant ST/T506436/1. A.N.W. was partially supported by STFC Grant ST/W001195/1.en
dc.description.abstractA 2D Cartesian simulation is presented and used to solve the ideal, low-beta, linear magnetohydrodynamics equations. A simulation is used to investigate the propagation of Alfvén waves through inhomogeneities in Alfvén speed and density. In particular, the loss of Alfvén wave energy through coupling to the fast wave, and also the form of the Alfvén wave as it emerges from the inhomogeneous region is studied. Potential applications of this include the magnetospheres of both Jupiter and the Earth. The results show that Alfvén waves can be significantly distorted by a nonuniformity and still propagate through the region efficiently, with relatively small amounts of Alfvén wave energy lost through mode conversion and reflection.
dc.format.extent17
dc.format.extent3624571
dc.language.isoeng
dc.relation.ispartofEarth and Space Scienceen
dc.subjectMagnetophydrodynamicsen
dc.subjectWave mode couplingen
dc.subjectAlfen wavesen
dc.subjectMagnetospheric physicsen
dc.subjectQC Physicsen
dc.subjectQA Mathematicsen
dc.subjectDASen
dc.subjectMCCen
dc.subject.lccQCen
dc.subject.lccQAen
dc.titleAlfvén-fast wave coupling in a 2D non-uniform mediumen
dc.typeJournal articleen
dc.contributor.sponsorScience & Technology Facilities Councilen
dc.contributor.institutionUniversity of St Andrews. Applied Mathematicsen
dc.identifier.doi10.1029/2023ea003167
dc.description.statusPeer revieweden
dc.identifier.grantnumberST/W001195/1en


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