Magnetohydrodynamic structure of a plasmoid in fast reconnection in low-beta plasmas

Abstract

Plasmoid structures in fast reconnection in low-beta plasmas are investigated by two-dimensional magnetohydrodynamic simulations. A high-resolution shock-capturing code enables us to explore a variety of shock structures: vertical slow shocks behind the plasmoid, another slow shocks in the outer-region, and the shock-reflection in the front side. The Kelvin-Helmholtz-like turbulence is also found inside the plasmoid. It is concluded that these shocks are rigorous features in reconnection in low-beta plasmas, where the reconnection jet speed or the upstream Alfven speed exceeds the sound speed.

25 pages, 7 figures, 1 tables; fortran 90 codes attached as ancillary files; see "Other formats" link; the publisher's version contains multimedia files

References in corpus (5)

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• Two-dimensional MHD simulations of relativistic magnetic reconnection
• Resistive Magnetohydrodynamic Simulations of Relativistic Magnetic Reconnection
• Plasmoids in Reconnecting Current Sheets: Solar and Terrestrial Contexts Compared
• Resistive magnetohydrodynamic simulations of X-line retreat during magnetic reconnection

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