Kichigin, G. N., L. I. Miroshnichenko, V. I. Sidorov, and S. A. Yazev, Skin-layer of the eruptive magnetic flux rope in large solar flares, Geomagnetism and Aeronomy, 56, 393-400 (2016) (ADS)
(click on the image for a larger version)
Date: 2019 December 15
Describing the formation of a thin current layer on the surface of an erupting flux tube. This stems from the Hirayama flare model, one of the CSHKP pantheon, but with parallel electric fields. It seems that SFRE stands for "Solar Flare Ring Emission," which sounds like something that one would expect if particle acceleration indeed is associated with the current layer as described.