Particle acceleration by shock waves in solar flares

Details Particle acceleration by shock waves in solar flares Particle acceleration by shock waves in solar flares

Sep 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....89..353a&link_type=abstract

Astronomy and Astrophysics, vol. 89, no. 3, Sept. 1980, p. 353-362. Research supported by the Nederlandse Organisatie voor Zuiv

Astronomy and Astrophysics

Astrophysics

34

Particle Acceleration, Shock Waves, Solar Flares, Solar Protons, Coulomb Collisions, Gamma Rays, High Energy Electrons, Magnetohydrodynamic Waves

Scientific paper

A detailed shock wave model for second phase acceleration associated with solar flares is proposed. The acceleration of protons and electrons by solar flare-generated shock waves is analyzed. It is shown that high Mach number shock waves can accelerate protons and electrons to MeV energies in the corona and interplanetary space. The delay observed between the impulsive phase of the flare and acceleration of protons and relativistic electrons (second phase acceleration) finds a natural explanation in terms of shock propagation in an inhomogeneous atmosphere. An important factor is the detailed consideration of the injection of particles into the acceleration domain. A number of key observational consequences of the theory are described.

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