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Signatures of secondary collisionless magnetic reconnection driven by kink instability of a flux rope
KTH, School of Computer Science and Communication (CSC), High Performance Computing and Visualization (HPCViz).ORCID iD: 0000-0003-0639-0639
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2014 (English)In: Plasma Physics and Controlled Fusion, ISSN 0741-3335, E-ISSN 1361-6587, Vol. 56, no 6, 064010- p.Article in journal (Refereed) Published
Abstract [en]

The kinetic features of secondary magnetic reconnection in a single flux rope undergoing internal kink instability are studied by means of three-dimensional particle-in-cell simulations. Several signatures of secondary magnetic reconnection are identified in the plane perpendicular to the flux rope: a quadrupolar electron and ion density structure and a bipolar Hall magnetic field develop in proximity of the reconnection region. The most intense electric fields form perpendicularly to the local magnetic field, and a reconnection electric field is identified in the plane perpendicular to the flux rope. An electron current develops along the reconnection line, in the opposite direction of the electron current supporting the flux rope magnetic field structure. Along the reconnection line, several bipolar structures of the electric field parallel to the magnetic field occur, making the magnetic reconnection region turbulent. The reported signatures of secondary magnetic reconnection can help to localize magnetic reconnection events in space, astrophysical and fusion plasmas.

Place, publisher, year, edition, pages
2014. Vol. 56, no 6, 064010- p.
Keyword [en]
magnetic reconnection, PIC simulations, flux rope, kink instability
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-146546DOI: 10.1088/0741-3335/56/6/064010ISI: 000335967800011Scopus ID: 2-s2.0-84899425131OAI: oai:DiVA.org:kth-146546DiVA: diva2:724172
Funder
EU, FP7, Seventh Framework Programme, 287703 263340
Note

QC 20140612

Available from: 2014-06-12 Created: 2014-06-12 Last updated: 2017-12-05Bibliographically approved

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Markidis, MarkidisLaure, Erwin

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CiteExportLink to record
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  • apa
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  • de-DE
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