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Coronal Heating Topology: the Interplay of Current Sheets and Magnetic Field Lines

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arxiv 1706.08983 v1 pith:JAK37YWE submitted 2017-06-27 astro-ph.SR physics.plasm-phphysics.space-ph

Coronal Heating Topology: the Interplay of Current Sheets and Magnetic Field Lines

classification astro-ph.SR physics.plasm-phphysics.space-ph
keywords fieldcurrentlinemagneticrandomsheetswalkcorona
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The magnetic topology and field line random walk properties of a nanoflare-heated and magnetically confined corona are investigated in the reduced magnetohydrodynamic regime. Field lines originating from current sheets form coherent structures, called Current Sheet Connected (CSC) regions, extended around them. CSC field line random walk is strongly anisotropic, with preferential diffusion along the current sheets' in-plane length. CSC field line random walk properties remain similar to those of the entire ensemble but exhibit enhanced mean square displacements and separations due to the stronger magnetic field intensities in CSC regions. The implications for particle acceleration and heat transport in the solar corona and wind, and for solar moss formation are discussed.

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