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Investigation of the Diamagnetic Drift Condition for the Suppression of Magnetic Reconnection in 3D Interlinked Reconnection Events with Magnetic Flux Pileup

dc.contributor.authorMAHESHWARI, K.
dc.contributor.authorPHAN, T. D.
dc.contributor.authorØIEROSET, M.
hal.structure.identifierInstitut de recherche en astrophysique et planétologie [IRAP]
dc.contributor.authorFARGETTE, N.
hal.structure.identifierInstitut de recherche en astrophysique et planétologie [IRAP]
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorLAVRAUD, B.
dc.contributor.authorBURCH, J. L.
dc.contributor.authorSTRANGEWAY, R. J.
dc.contributor.authorGERSHMAN, D. J.
dc.contributor.authorGILES, B. L.
dc.date.issued2022
dc.identifier.issn0004-637X
dc.description.abstractEnWe have performed a statistical survey to investigate possible diamagnetic drift suppression of magnetic reconnection using Magnetospheric Multiscale observations of interlinked magnetic field line events at Earth's magnetopause. Our goal is to investigate a possible cause for the observed magnetic field pileup on the two sides of the thin reconnecting current sheets, at the interface of the converging field lines. We compare whether the diamagnetic drift condition for the suppression of reconnection is satisfied before and after magnetic field pileup. We find that for a majority of events in our data set, the pre-pileup plasma β gradient and magnetic shear values were in the reconnection-suppressed regime, whereas the post-pileup values were in the reconnection-allowed regime. A possible interpretation is that reconnection was suppressed under the pre-pileup conditions, and this led to magnetic field pileup. The magnetic field pileup subsequently generated boundary conditions at the interlinked current sheet that overcame the diamagnetic drift suppression condition, allowing reconnection to happen in the interlinked field line structure. However, in one third of the events, the pre-pileup conditions were already in the reconnection-allowed regime, indicating that in such events, the diamagnetic suppression condition was probably not responsible for field pileup.
dc.language.isoen
dc.publisherAmerican Astronomical Society
dc.subject.enGeomagnetic fields
dc.subject.enSolar magnetic reconnection
dc.title.enInvestigation of the Diamagnetic Drift Condition for the Suppression of Magnetic Reconnection in 3D Interlinked Reconnection Events with Magnetic Flux Pileup
dc.typeArticle de revue
dc.identifier.doi10.3847/1538-4357/ac9405
dc.subject.halPlanète et Univers [physics]
bordeaux.journalThe Astrophysical Journal
bordeaux.volume940
bordeaux.peerReviewedoui
hal.identifierinsu-04472241
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//insu-04472241v1
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