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Exact Vlasov-Maxwell equilibria for asymmetric current sheets

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dc.contributor.authorAllanson, O.
dc.contributor.authorWilson, F.
dc.contributor.authorNeukirch, T.
dc.contributor.authorLiu, Yi-Hsin
dc.contributor.authorHodgson, J. D. B.
dc.date.accessioned2017-09-08T10:30:10Z
dc.date.available2017-09-08T10:30:10Z
dc.date.issued2017-09-16
dc.identifier250702533
dc.identifier7ca18adc-8da1-4679-979d-6b5486a63599
dc.identifier85029227423
dc.identifier000411702400002
dc.identifier.citationAllanson , O , Wilson , F , Neukirch , T , Liu , Y-H & Hodgson , J D B 2017 , ' Exact Vlasov-Maxwell equilibria for asymmetric current sheets ' , Geophysical Research Letters , vol. 44 , no. 17 , pp. 8685-8695 . https://doi.org/10.1002/2017GL074168en
dc.identifier.issn0094-8276
dc.identifier.otherORCID: /0000-0002-7597-4980/work/36661750
dc.identifier.urihttps://hdl.handle.net/10023/11626
dc.descriptionFunding: Science and Technology Facilities Council Consolidated Grant Nos. ST/K000950/1 and ST/N000609/1 (O.A., T.N., J.D.B.H.and F.W.), the Science and Technology Facilities Council Doctoral Training Grant No. ST/K502327/1 (O.A. and J.D.B.H), the Natural Environment Research Council Grant No. NE/P017274/1 (Rad-Sat) (O.A.)en
dc.description.abstractThe NASA Magnetospheric Multiscale mission has made in-situ diffusion region and kinetic-scale resolution measurements of asymmetric magnetic reconnection for the first time [Burch et al., 2016], in the Earth’s magnetopause. The principal theoretical tool currently used to model collisionless asymmetric reconnection is particle-in-cell simulations. Many particle-in-cell simulations of asymmetric collisionless reconnection start from an asymmetric Harris-type magnetic field, but with distribution functions that are not exact equilibrium solutions of the Vlasov equation. We present new and exact equilibrium solutions of the Vlasov-Maxwell system that are self-consistent with one-dimensional asymmetric current sheets, with an asymmetric Harris-type magnetic field profile, plus a constant non-zero guide field. The distribution functions can be represented as a combination of four shifted Maxwellian distribution functions. This equilibrium describes a magnetic field configuration with more freedom than the previously known exact solution [Alpers, 1969], and has different bulk flow properties.
dc.format.extent11
dc.format.extent1837787
dc.language.isoeng
dc.relation.ispartofGeophysical Research Lettersen
dc.subjectVlasoc-Maxwell equilibriumen
dc.subjectExact solutionen
dc.subjectAsymmetric current sheeten
dc.subjectMagnetopauseen
dc.subjectInitial Conditionen
dc.subjectDistribution functionen
dc.subjectQA Mathematicsen
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.subjectT-DASen
dc.subject.lccQAen
dc.subject.lccQBen
dc.subject.lccQCen
dc.titleExact Vlasov-Maxwell equilibria for asymmetric current sheetsen
dc.typeJournal itemen
dc.contributor.sponsorScience & Technology Facilities Councilen
dc.contributor.sponsorScience & Technology Facilities Councilen
dc.contributor.institutionUniversity of St Andrews. Applied Mathematicsen
dc.contributor.institutionUniversity of St Andrews. School of Mathematics and Statisticsen
dc.identifier.doi10.1002/2017GL074168
dc.description.statusPeer revieweden
dc.identifier.grantnumberST/K000950/1en
dc.identifier.grantnumberST/N000609/1en


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