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NASA NTRS · 20150021209

Distinguishing Between Supra-Arcade Downflows and Plasmoids

Savage, Sabrina
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Abstract

Supra‐arcade downflows (SADs) and downflowing loops (SADLs), observed as sunward-traveling voids and thin flux tubes in the current sheet region above developing flare arcades, are considered indicators of magnetic reconnection fueling long­-duration solar eruptions. These flows are located in regions of very low signal-­to-noise in the corona where high cadence magnetic field measurements are not yet achievable, making observations difficult to fully interpret with respect to reconnection. Several models have been developed to explain their characteristics and behaviors, but most do not successfully recreate the observations. We will present a variety of downflow observations and provide comparisons to a number of the more prominent models.

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Savage, Sabrina. 2015-07-06. Distinguishing Between Supra-Arcade Downflows and Plasmoids. https://ntrs.nasa.gov/citations/20150021209

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