Abstract In high-energy solar flares, defined as flares that emit an observable gamma-ray spectrum, there can be three subsequent phases of particle acceleration. to ∼ 10 MeV occurs within less than 0.1 s. It is suggested that this happens in many explosive coalescences between the many fluxthreads in the flare area. One or two seconds later to ∼ 100 MeV in an expanding shock-wave dominated electric field system; this is the . A few minutes later ions be further accelerated (to ∼ GeV energies) in a field line system opening to space. This is the .
Acceleration phases in high-energy solar flares
Advances in Space Research ; 10 , 9 ; 101-103
1990-01-01
3 pages
Article (Journal)
Electronic Resource
English
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