Coronal `Tadpoles' Observed by TRACE

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

The X1.5 flare event observed by TRACE in 195 Å on 21 April 2002, showed dark, downward-propagating features over the flare arcade which we call `coronal tadpoles.' We analyzed these features and determined their distinguishing characteristics. Estimating plasma densities inside the features, we determined that they are of very low density and possibly >10 million K. We propose that the coronal tadpoles my be interpreted in terms of kink modes of the flaring current sheet filled by hot, rarefied plasma.

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