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Reverse-current effect in present-day models of solar flares: Theory and high-accuracy observations

Gritsyk, P. A.; Somov, B. V.

We propose an accurate analytical model for the source of hard X-ray emission from a flare in the form of a "thick target" with a reverse current to explain the results of present-day observations of solar flares onboard the GOES, Hinode, RHESSI, and TRACE satellites. The model, one-dimensional in coordinate space and two-dimensional in velocity s…