What does reconnection do?
We've confirmed that the slowest of the gradual flares devote
the same fraction of energy to the acceleration of 10-100 keV electrons
as do the most violent impulsive flares.
Some (5 of 17 to date) of these "slow LDE" events also show supra-arcade
We suggest that the visibility of the supra-arcade flows depends upon
the slowness of the reconnection, following the Forbes-Acton explanation
that lower shrinkage speeds correspond to higher plasma beta.
We do not understand what produces the spiky structure, which also
may aid in making the flows (mainly between the spikes) visible.
We speculate that the order we observe is imposed by instabilities in
enhanced solar-wind flow along the streamer (cusp) configuration.
In any of the recent scenarios for electron acceleration (termination
shock, slow shock, X-point, turbulent current sheet) the energy going to
particle acceleration must strongly depend on the reconnection rate.
Why is it so model-independent?