Reverse current in solar flares

Details Reverse current in solar flares Reverse current in solar flares

Dec 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976rcsf.rept.....k&link_type=abstract

Unknown

Physics

Beam Currents, Chromosphere, Electric Corona, Solar Flares, Vlasov Equations, Electric Fields, Energy Transfer, Magnetic Flux, Solar Wind

Scientific paper

The theory that impulsive X ray bursts are produced by high energy electrons streaming from the corona to the chromosphere is investigated. Currents associated with these streams are so high that either the streams do not exist or their current is neutralized by a reverse current. Analysis of a simple model indicates that the primary electron stream leads to the development of an electric field in the ambient corona which decelerates the primary beam and produces a neutralizing reverse current. It appears that, in some circumstances, this electric field could prevent the primary beam from reaching the chromosphere. In any case, the electric field acts as an energy exchange mechanism, extracting kinetic energy from the primary beam and using it to heat the ambient plasma. This heating is typically so rapid that it must be expected to have important dynamical consequences.

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