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Particle acceleration by a solar flare termination shock

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Science  04 Dec 2015:
Vol. 350, Issue 6265, pp. 1238-1242
DOI: 10.1126/science.aac8467

Electron acceleration in solar flares

Magnetic reconnection during a solar flare releases energy into the Sun's atmosphere, some of which is converted into accelerated particles in the plasma. Chen et al. combined radio and ultraviolet observations of a solar flare to identify the termination shock region where electrons are accelerated to relativistic speeds.

They confirmed these results with magneto-hydrodynamic simulations. This improved knowledge of the mechanism behind flares improves our understanding of the solar wind and space weather.

Science, this issue p. 1238