Quasi-periodic Particle Acceleration in a Solar Flare
Clarke, Brendan P., Laura A. Hayes, Peter T. Gallagher, Shane A. Maloney, and Eoin P. Carley, Quasi-periodic Particle Acceleration in a Solar Flare, ApJ, 910, 123 (2021) (ADS)
(click on the image for a larger version)
A further embellishment of the
realization that an additional
reconnection process would be needed if one wished to link flare-accelerated
particles with SEPs.
There are MHD models with
comparably good color schemes.
The innovation here is to associate the external reconnection with one
of the many forms
that large-scale pulsations
(QPP)
that could occur during the dynamical evolution of the flare structures.
The interesting aspect of the event (SOL2015-11-04, M3.7) inspiring this
cartoon was its clear linkage, in the time-series sense, between QPPs at
flare footpoints and type II bursts seen in the outer corona/solar wind.
A further embellishment of the realization that an additional reconnection process would be needed if one wished to link flare-accelerated particles with SEPs. There are MHD models with comparably good color schemes. The innovation here is to associate the external reconnection with one of the many forms that large-scale pulsations (QPP) that could occur during the dynamical evolution of the flare structures.
The interesting aspect of the event (SOL2015-11-04, M3.7) inspiring this cartoon was its clear linkage, in the time-series sense, between QPPs at flare footpoints and type II bursts seen in the outer corona/solar wind.