Observations of Chromospheric Flare Re-brightenings

Miklenic, C. H., A. M. Veronig, B. Vršnak, and M. Bárta, Observations of Chromospheric Flare Re-brightenings, ApJ, 719, 1750-1758 (2010) (ADS)

The cartoon

(click on the image for a larger version)

An early effort in a very important direction: can we make use of the highest-resolution imaging observations to understand how homologous flares work? Here the idea is that a single footpoint region can successively reconnect to different conjugate footpoints in the different events. This naively conflicts with the idea at magnetic reconnection is a dissipative process and that you can't put Humpty-Dumpty back together again.

      This is a question already for the corona, but obviously it's much more delicate with high-resolution observations and will become even more interesting as DKIST data begin to appear.

Date: 2020 February 14