Physics
Scientific paper
Dec 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991jatp...53.1033h&link_type=abstract
(Solar-terrestrial physics; International SCOSTEP Symposium, 7th, The Hague, Netherlands, June 25-30, 1990, Selected Papers. A92
Physics
10
Energetic Particles, International Sun Earth Explorer 3, Interplanetary Medium, Particle Flux Density, Shock Wave Propagation, Solar Terrestrial Interactions, Anisotropic Media, Interplanetary Magnetic Fields, Solar Activity, Solar Planetary Interactions, Time Dependence
Scientific paper
An evolutionary model, including particle and shock propagation through the interplanetary medium, has been used to reproduce the evolution of the flux and anisotropy in the upstream region of two low-energy particle events observed by ISEE 3. These events, on April 24, 1979, and February 18, 1979, originated at solar (helio) longitudes about 50 deg apart. By fitting the observed particle fluxes and anisotropies, the conditions for the propagation of the particles through the interplanetary medium and the injection rates at the shock have been determined as a function of time. The results are discussed in terms of the interplanetary magnetic field connection between the observer and the shock front and they are related to the heliolongitude of the parent solar activity.
Detman Thomas
Dryer Murray
Heras Ana M.
Sanahuja Blai
Smith Zdenka Kopal
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