Radiation signatures from a locally energized flaring loop

Emslie, A. G. and L. Vlahos, Radiation signatures from a locally energized flaring loop, ApJ, 242, 359-373 (1980) (ADS)

The cartoon

(click on the image for a larger version)

If one dumps a lot of energy into the top of a coronal magnetic loop - never mind how, just for speculation's sake - what happens? This paper lays it all out, as well as people could do three decades ago... can they do any better now? The "turbulent fronts" with reverse currents and free-streaming tail particles sounds like it is at the limit of our modern knowledge, ca. 1980. Here the Roman numerals refer to distinct regions in the authors' simplfied treatment of the structure.

      The cartoon critically mis-labels the "open field line", never mind the obvious fact that a turbulent ion-acoustic front would destroy the field-line concept itself; the outermost line is either a closed field or else it is drawn with the wrong sense of curvature (convex, not concave-up).

Date: 2008 October 29

Update: 2019 November 21