Three-dimensional Simulation of Thermodynamics on Confined Turbulence in a Large-scale CME-flare Current Sheet
نویسندگان
چکیده
Abstract Turbulence plays a key role in forming the complex geometry of large-scale current sheet (CS) and fast energy release solar eruption. In this paper, we present full 3D high-resolution simulations for process moderate coronal mass ejection (CME) thermodynamical evolution highly confined CS. Copious elongated blobs are generated owing to tearing plasmoid instabilities, giving rise higher reconnection rate, undergo splitting, merging, kinking processes more way 3D. A detailed analysis shows that CS is mainly heated by adiabatic numerical viscous terms, thermal conduction dominant factor balances inside Accordingly, temperature reaches maximum about 20 MK, range temperatures relatively narrow. From face-on view synthetic Atmospheric Imaging Assembly 131 Å, downflowing structures with similar morphology supra-arcade downflows located between post-flare loops loop top, while moving can extend spikes above top. The downward-moving plasmoids keep twisted magnetic field configuration until annihilation at flare indicating dominates lower Meanwhile, upward-moving ones turn into turbulent before arriving bottom CME, implying upper spatial distributions anisotropy addressed, which show significant variation spectra height.
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2023
ISSN: ['2041-8213', '2041-8205']
DOI: https://doi.org/10.3847/1538-4357/acf129