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Euler potentials for two layers with non-constant current densities in the ambient magnetic field aligned to the layers
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SYSNO ASEP 0472000 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Euler potentials for two layers with non-constant current densities in the ambient magnetic field aligned to the layers Author(s) Vandas, Marek (ASU-R) RID, ORCID
Romashets, E. (US)Source Title Annales Geophysicae. - : Copernicus - ISSN 0992-7689
Roč. 34, č. 12 (2016), s. 1165-1173Number of pages 9 s. Publication form Print - P Language eng - English Country DE - Germany Keywords magnetospheric physics ; scale birkeland currents ; charged particles Subject RIV BN - Astronomy, Celestial Mechanics, Astrophysics R&D Projects GA14-19376S GA ČR - Czech Science Foundation (CSF) Institutional support ASU-R - RVO:67985815 UT WOS 000391489400001 EID SCOPUS 85006511301 DOI 10.5194/angeo-34-1165-2016 Annotation The Euler potentials for two current layers aligned to an ambient homogeneous magnetic field are found. Previous treatment of such a system assumed constant current density in the layers. However, the magnetic field becomes infinite at the edges. The new approach eliminates this inconsistency by introducing an inhomogeneous current density. Euler potentials are constructed semi-analytically for such a system. Charged-particle motion and trapping in it are examined by this representation. Using Euler potentials, the influence of current sheets of zero and non-zero thicknesses on energetic-particle fluxes is investigated, and characteristic flux variations near the sheets are presented. The results can be applied to Birkeland currents. Workplace Astronomical Institute Contact Radka Svašková, bibl@asu.cas.cz, Tel.: 323 620 326 Year of Publishing 2017
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