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Global three-dimensional draping of magnetic field lines in Earth's magnetosheath from in-situ spacecraft measurements

hal.structure.identifierLaboratoire de Physique des Plasmas [LPP]
dc.contributor.authorMICHOTTE DE WELLE, Bayane
hal.structure.identifierLaboratoire de Physique des Plasmas [LPP]
dc.contributor.authorAUNAI, Nicolas
hal.structure.identifierDélégation générale de l'armement [DGA]
dc.contributor.authorNGUYEN, Gautier
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorLAVRAUD, Benoit
hal.structure.identifierInstitut de recherche en astrophysique et planétologie [IRAP]
dc.contributor.authorGÉNOT, Vincent
hal.structure.identifierLaboratoire de Physique des Plasmas [LPP]
dc.contributor.authorJEANDET, Alexis
hal.structure.identifierLaboratoire de Physique des Plasmas [LPP]
dc.contributor.authorSMETS, Roch
dc.date.issued2022
dc.identifier.issn2169-9380
dc.description.abstractEnMagnetic field draping occurs when the magnetic field lines frozen in a plasma flow wrap around a body or plasma environment. The draping of the interplanetary magnetic field (IMF) around the Earth’s magnetosphere has been confirmed in the early days of space exploration. However, its global and three‐dimensional structure is known from modeling only, mostly numerical. Here, this structure in the dayside of the Earth’s magnetosheath is determined as a function of the upstream IMF orientation purely from in‐situ spacecraft observations. We show the draping structure can be organized in three regimes depending on how radial the upstream IMF is. Quantitative analysis demonstrates how the draping pattern results from the magnetic field being frozen in the magnetosheath flow, deflected around the magnetopause. The role of the flow is emphasized by a comparison of the draping structure to that predicted to a magnetostatic draping.
dc.language.isoen
dc.publisherAmerican Geophysical Union/Wiley
dc.title.enGlobal three-dimensional draping of magnetic field lines in Earth's magnetosheath from in-situ spacecraft measurements
dc.typeArticle de revue
dc.identifier.doi10.1029/2022JA030996
dc.subject.halPlanète et Univers [physics]/Sciences de la Terre/Géophysique [physics.geo-ph]
dc.subject.halPhysique [physics]/Physique [physics]/Physique de l'espace [physics.space-ph]
bordeaux.journalJournal of Geophysical Research Space Physics
bordeaux.pagee2022JA030996
bordeaux.volume127
bordeaux.issue12
bordeaux.peerReviewedoui
hal.identifierhal-03841364
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03841364v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Geophysical%20Research%20%20Space%20Physics&rft.date=2022&rft.volume=127&rft.issue=12&rft.spage=e2022JA030996&rft.epage=e2022JA030996&rft.eissn=2169-9380&rft.issn=2169-9380&rft.au=MICHOTTE%20DE%20WELLE,%20Bayane&AUNAI,%20Nicolas&NGUYEN,%20Gautier&LAVRAUD,%20Benoit&G%C3%89NOT,%20Vincent&rft.genre=article


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