Energy conversion by magnetic reconnection in multiple ion temperature plasmas

  • Magnetic reconnection is a process that converts magnetic energy into kinetic energy, both bulk and thermal. We study the energy partition in magnetotail reconnection in the presence of cold ion populations of ionospheric origin using kinetic simulations. We compare two simulations with one or two ion populations, but same ion moments. The ion distribution in the simulation with cold ions therefore corresponds to a non-Maxwellian distribution with a large tail. The global energy budget does not change in the two cases, but when focusing on sub-populations, the hot ion population (i.e., the tail of the velocity distribution function) gains more energy than the cold ion population (i.e., the core of the distribution). Hot and cold ions also gain different percentages of bulk and thermal energy.

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Author:Jeremy DargentORCiDGND, Sergio Toledo-RedondoORCiDGND, Andrey DivinORCiDGND, Maria Elena InnocentiORCiDGND
Parent Title (English):Geophysical research letters
Place of publication:Hoboken
Document Type:Article
Date of Publication (online):2024/02/22
Date of first Publication:2023/06/26
Publishing Institution:Ruhr-Universität Bochum, Universitätsbibliothek
Tag:Open Access Fonds
Issue:12, Article e2023GL103324
First Page:e2023GL103324-1
Last Page:e2023GL103324-9
Article Processing Charge funded by the Deutsche Forschungsgemeinschaft (DFG) and the Open Access Publication Fund of Ruhr-Universität Bochum.
Institutes/Facilities:Institut für Theoretische Physik I, Computerorientierte Plasmaphysik
Dewey Decimal Classification:Naturwissenschaften und Mathematik / Physik
open_access (DINI-Set):open_access
faculties:Fakultät für Physik und Astronomie
Licence (English):License LogoCreative Commons - CC BY 4.0 - Attribution 4.0 International