Hybrid-Vlasov modeling of three-dimensional dayside magnetopause reconnection

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Pfau-Kempf , Y , Palmroth , M , Johlander , A , Turc , L , Alho , M , Battarbee , M , Dubart , M , Grandin , M & Ganse , U 2020 , ' Hybrid-Vlasov modeling of three-dimensional dayside magnetopause reconnection ' , Physics of Plasmas , vol. 27 , no. 9 , 092903 . https://doi.org/10.1063/5.0020685

Title: Hybrid-Vlasov modeling of three-dimensional dayside magnetopause reconnection
Author: Pfau-Kempf, Y.; Palmroth, M.; Johlander, A.; Turc, L.; Alho, M.; Battarbee, M.; Dubart, M.; Grandin, M.; Ganse, U.
Contributor: University of Helsinki, Particle Physics and Astrophysics
University of Helsinki, Department of Physics
University of Helsinki, Space Physics Research Group
University of Helsinki, Space Physics Research Group
University of Helsinki, Space Physics Research Group
University of Helsinki, Space Physics Research Group
University of Helsinki, Space Physics Research Group
University of Helsinki, Particle Physics and Astrophysics
University of Helsinki, Department of Physics
Date: 2020-09
Language: eng
Number of pages: 8
Belongs to series: Physics of Plasmas
ISSN: 1070-664X
URI: http://hdl.handle.net/10138/320581
Abstract: Dayside magnetic reconnection at the magnetopause, which is a major driver of space weather, is studied for the first time in a three-dimensional (3D) realistic setup using a hybrid-Vlasov kinetic model. A noon-midnight meridional plane simulation is extended in the dawn-dusk direction to cover 7 Earth radii. The southward interplanetary magnetic field causes magnetic reconnection to occur at the subsolar magnetopause. Perturbations arising from kinetic instabilities in the magnetosheath appear to modulate the reconnection. Its characteristics are consistent with multiple, bursty, and patchy magnetopause reconnection. It is shown that the kinetic behavior of the plasma, as simulated by the model, has consequences on the applicability of methods such as the four-field junction to identify and analyze magnetic reconnection in 3D kinetic simulations.
Subject: INTERPLANETARY MAGNETIC-FIELD
LOCAL TIME EXTENT
MAGNETOSPHERE
SIMULATION
PATCHY
115 Astronomy, Space science
114 Physical sciences
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