The basic "sheared-core magnetic explosion" model, as described endlessly by fans of magnetic reconnection on large scales. This is in the main stream of CSHKP consciousness - no new ideas really, but at least insistence here on the 3-dimensional structure. Many later cartoons in the genre reverted to 2D. This very nice Skylab flare (July 29, 1973) was a filament-eruption event, in a spotless region (the Archivist recalls), a favorite subject of Helen Dodson-Prince who is alas not represented in this Archive.
Sept. 15 2009