A Hard X-Ray Sigmoidal Structure during the Initial Phase of the 2003 October 29 X10 Flare

Nothing novel here, it's CSHKP with an unexpected twist, but liberal use of bright colors makes the connectivity changes easy to follow. Note in particular how the helix that forms at loop top contains all the colors. Given the very small spatial scale of a simple electron diffusion region, physically one would expect an extremely tight helix and probably not much organization, so the multicolor helix here might be a stab at turbulence?

      See also the Gosling cartoon for bright colors (the same mechanism, but with a CME emphasis and the inclusion of open field lines).