Quantitative Examination of Observed Reconnection Outflows

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

Downward motions above post-CME flare arcades--the supra-arcade downflows--are important signatures of magnetic reconnection in flares. As tracers of reconnection outflow, their characteristics are indicative of the parameters of 3D patchy reconnection, including the size of participating flux tubes, and, by extension, the characteristic size of the localized diffusion region. As we will show, application of automated feature-tracking programs to flare images from SXT and TRACE yields empirical estimates of important quantities for understanding patchy reconnection, including speeds, locations, size distributions, and even the amount of flux participating in a typical reconnection.This work is supported by NASA Grant NNG04GB74G.

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