Solar and interplanetary shock effects on the flux and anisotropy profiles of an Energetic Storm Particle (ESP) event observed on 23-25 April 1979

Details Solar and interplanetary shock effects on the flux and anisotropy profiles of an Energetic Storm Particle (ESP) event observed on 23-25 April 1979 Solar and interplanetary shock effects on the flux and anisotropy profiles of an Energetic Storm Particle (ESP) event observed on 23-25 April 1979

Dec 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991jatp...53.1027h&link_type=abstract

(Solar-terrestrial physics; International SCOSTEP Symposium, 7th, The Hague, Netherlands, June 25-30, 1990, Selected Papers. A92

Physics

7

Energetic Particles, Interplanetary Magnetic Fields, Interplanetary Medium, Magnetic Storms, Shock Wave Propagation, Solar Terrestrial Interactions, Anisotropic Media, Particle Flux Density, Particle Trajectories, Wave-Particle Interactions

Scientific paper

A large ESP event was observed by ISEE-3 between April 23 and 25 1979. This event was associated with an interplanetary shock which was generated by a solar disappearing filament. Flux and anisotropy profiles in the upstream region of the event have been reproduced by means of a particle propagation model which includes particle injection both at the sun and at the shock front. Injection at the front takes into account the fact that the IMF connection between the shock and the spacecraft is disrupted by the shock itself. The model, coupled to a 2D MHD time-dependent model, makes it possible to study the parameters for the interplanetary propagation of the particles, the injection rates both at the sun and at the shock front, from near the sun out to 1 AU.

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