Solar flare shocks in interplanetary space and solar flare particle events

Details Solar flare shocks in interplanetary space and solar flare particle events Solar flare shocks in interplanetary space and solar flare particle events

Feb 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982jgr....87..625e&link_type=abstract

Journal of Geophysical Research, vol. 87, Feb. 1, 1982, p. 625-631.

Astronomy and Astrophysics

Astronomy

28

Energetic Particles, Interplanetary Space, Particle Flux Density, Shock Wave Propagation, Solar Flares, Anisotropic Media, Astronomical Models, Interplanetary Magnetic Fields, Particle Acceleration, Solar Protons

Scientific paper

Data on particle events resulting from three solar flares are examined to determine the effect of shocks on the population of protons at energies not less than 30 MeV. The arrival of the shock is found to mark the start of the decay phase of the particle event, and changes in particle anisotropy are found to be related to features in the shock structure. Two distinct modes of particle propagation are found to exist: a direct component, and a second component which has a time scale of days and is seen in two of the flares which also produced interplanetary shock. In addition, a model is described in which the protons are accelerated by the shocks, and it is shown to be in agreement with observations.

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