Double Arc Instability in the Solar Corona

Ishiguro, N. and K. Kusano, Double Arc Instability in the Solar Corona, ApJ, 843, 101 (2017) (ADS)

The cartoon

(click on the image for a larger version)

The "double-arc instability", which appears to be a physical description of the Moore "tether-cutting" cartoon. Note the emphasis here upon the reconnection of a coronal current, as well as a magnetic field. This picture therefore also might embody the Melrose double-loop cartoon, except that the cartoon presented here does not explicitly require four current-injection sites to be present after the fact of the flare. Since the authors have a keen interest in flare prediction, the post-flare state might not interest them too much.

Date: 2020 May 26