Constant outflow of low-energy particles from active regions on the sun

Physics

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Satellite Observation, Solar Activity, Solar Wind, Electron Flux Density, Proton Flux Density, Solar Electrons, Solar Flares, Solar Flux Density, Solar Magnetic Field, Solar Protons

Scientific paper

The article discusses preliminary findings from Prognoz and Prognoz-3 satellite data on six increments in electron flux (energies 40 to 500 keV) and proton flux (energies above 1 MeV) associated with solar active regions, during quiescent periods. These flux increases can be treated as a result of free flare-unrelated efflux of particles from active regions with neither confinement nor buildup of particles, but with the particles generated in an earlier flare and in a closed magnetic configuration. Two mechanisms are proposed to account for the release of energy stores in the active region: flare type bursts with escape of particles, and a nonexplosive mechanism with continuous outflow of particles from the region. Continuous generation and escape of particles from the active region is proposed for the events observed.

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