Physics
Scientific paper
Jan 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989esasp.285..111s&link_type=abstract
In ESA, Proceedings of an International School and Workshop on Reconnection in Space Plasma, Volume 2 p 111-116 (SEE N89-24974 1
Physics
1
Magnetic Field Reconnection, Magnetosonic Resonance, Particle Acceleration, Shock Waves, Solar Flares, Lorentz Force, Plasma Jets, Plasma Pinch
Scientific paper
Development of the theory of current loop coalescence and fast magnetosonic shock waves, particularly particle acceleration caused by these processes is reviewed. It is shown that the spiral, two sided plasma jets can be explosively driven by the plasma rotational motion induced by magnetic reconnection during the two current loop coalescence. The rebound following the plasma pinch driven by the Lorentz force can generate the fast magnetosonic shock waves. For a weak magnetic field, strong acceleration by the shocks occurs to protons only. Simultaneous acceleration of protons and electrons takes place in a rather strong magnetic field. Resonant protons gain relativistic energies within the order of the ion cyclotron period (much less than 1 s for solar plasma parameters). The electron acceleration time is shorter than the ion cyclotron period.
Ohsawa Yukiharu
Sakai Jun-Ichi
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