Properties of Magnetic Reconnection and FTEs on the Dayside Magnetopause With and Without Positive IMF B-x Component During Southward IMF

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dc.contributor.author Hoilijoki, S.
dc.contributor.author Ganse, U.
dc.contributor.author Sibeck, D.G.
dc.contributor.author Cassak, P.A.
dc.contributor.author Turc, L.
dc.contributor.author Battarbee, M.
dc.contributor.author Fear, R.C.
dc.contributor.author Blanco-Cano, X.
dc.contributor.author Dimmock, A.P.
dc.contributor.author Kilpua, E.K.J.
dc.contributor.author Jarvinen, R.
dc.contributor.author Juusola, L.
dc.contributor.author Pfau-Kempf, Y.
dc.contributor.author Palmroth, M.
dc.date.accessioned 2019-10-31T22:50:44Z
dc.date.available 2021-12-17T22:45:43Z
dc.date.issued 2019-06
dc.identifier.citation Hoilijoki , S , Ganse , U , Sibeck , D G , Cassak , P A , Turc , L , Battarbee , M , Fear , R C , Blanco-Cano , X , Dimmock , A P , Kilpua , E K J , Jarvinen , R , Juusola , L , Pfau-Kempf , Y & Palmroth , M 2019 , ' Properties of Magnetic Reconnection and FTEs on the Dayside Magnetopause With and Without Positive IMF B-x Component During Southward IMF ' , Journal of geophysical research. Space physics , vol. 124 , no. 6 , pp. 4037-4048 . https://doi.org/10.1029/2019JA026821
dc.identifier.other PURE: 124225775
dc.identifier.other PURE UUID: 5222f99c-9db7-406c-a15e-945732f9b732
dc.identifier.other RIS: urn:6FE30EEBCB7E379E06792966A934AC5A
dc.identifier.other ORCID: /0000-0001-7055-551X/work/59925053
dc.identifier.other ORCID: /0000-0003-4857-1227/work/59928400
dc.identifier.other ORCID: /0000-0002-4489-8073/work/59928406
dc.identifier.other ORCID: /0000-0002-7576-3251/work/59928690
dc.identifier.other ORCID: /0000-0001-5793-7070/work/59928717
dc.identifier.other WOS: 000477723100013
dc.identifier.uri http://hdl.handle.net/10138/306643
dc.description.abstract This paper describes properties and behavior of magnetic reconnection and flux transfer events (FTEs) on the dayside magnetopause using the global hybrid-Vlasov code Vlasiator. We investigate two simulation runs with and without a sunward (positive)B-x component of the interplanetary magnetic field (IMF) when the IMF is southward. The runs are two-dimensional in real space in the noon-midnight meridional (polar) plane and three-dimensional in velocity space. Solar wind input parameters are identical in the two simulations with the exception that the IMF is purely southward in one but tilted 45 degrees toward the Sun in the other. In the purely southward case (i.e., without B-x) the magnitude of the magnetos heath magnetic field component tangential to the magnetopause is larger than in the run with a sunward tilt. This is because the shock normal is perpendicular to the IMF at the equatorial plane, whereas in the other run the shock configuration is oblique and a smaller fraction of the total IMF strength is compressed at the shock crossing. Hence, the measured average and maximum reconnection rate are larger in the purely southward run. The run with tilted IMF also exhibits a north-south asymmetry in the tangential magnetic field caused by the different angle between the IMF and the bow shock normal north and south of the equator. Greater north-south asymmetries are seen in the FTE occurrence rate, size, and velocity as well; FTEs moving toward the Southern Hemisphere are larger in size and observed less frequently than FTEs in the Northern Hemisphere. en
dc.format.extent 12
dc.language.iso eng
dc.relation.ispartof Journal of geophysical research. Space physics
dc.rights unspecified
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject magnetic reconnection
dc.subject magnetopause
dc.subject flux transfer event
dc.subject numerical modeling
dc.subject hybrid-Vlasov
dc.subject 114 Physical sciences
dc.subject 115 Astronomy, Space science
dc.title Properties of Magnetic Reconnection and FTEs on the Dayside Magnetopause With and Without Positive IMF B-x Component During Southward IMF en
dc.type Article
dc.contributor.organization Space Physics Research Group
dc.contributor.organization Department of Physics
dc.contributor.organization Particle Physics and Astrophysics
dc.contributor.organization Staff Services
dc.description.reviewstatus Peer reviewed
dc.relation.doi https://doi.org/10.1029/2019JA026821
dc.relation.issn 2169-9380
dc.rights.accesslevel openAccess
dc.type.version acceptedVersion

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