This phenomenom has been linked with McKenzie's Cartoon

This image from Yohkoh SXT reveals the post-CME arcade formed during the eruption of 29 August 1992. The CME occurred on the east limb of the Sun, and the peculiar appearance of this arcade -- particularly the fan of roughly linear spines on top of the arcade -- was described by Svestka et al. (1998, Sol Phys, 182, 179). Many more examples of "spiny arcades" have since been analyzed, and it is these supra-arcade structures which most clearly reveal the supra-arcade downflows analyzed by Dave McKenzie and Hugh Hudson (McKenzie & Hudson, 1999, ApJ, 519, L93; McKenzie, 2000, Sol.Phys, in press). A very large (5 Mbyte) movie of this flare is located at http://solar.physics.montana.edu/mckenzie/280892_l.gif

This image and caption submitted by Dave McKenzie

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