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Paper: Properties of the Reconnecting Current Sheets in CME/Flare Events
Volume: 428, SOHO-23: Understanding a Peculiar Solar Minimum
Page: 177
Authors: Lin, J.; Li, J.; Ko, Y.-K.; Raymond, J. C.
Abstract: Analyzing the data from the UVCS and other instruments on board SOHO, we studied the plasma features of current sheets observed in various temperatures. The results suggest a thick current sheet with small interior structures, which implies the development of plasma instabilities in the sheet. Direct measurements yielded the sheet thickness d between 5.0 × 104 and 4.6 × 105 km, increasing with both time and altitude. The possibility that large apparent d results from projection effects is examined and rejected. We derive theoretical scaling laws relating d to other observables that corroborate this conclusion and thus help confine both d and the electric resistivity ηe to a reasonable range.
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