Physics
Scientific paper
Jun 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986soph..105..365r&link_type=abstract
Solar Physics (ISSN 0038-0938), vol. 105, June 1986, p. 365-382.
Physics
18
Energetic Particles, Gamma Ray Spectra, Particle Acceleration, Solar Flares, Solar X-Rays, Temporal Distribution, Particle Diffusion, Solar Atmosphere, Spatial Distribution, Stellar Models
Scientific paper
Three different models for coronal trapping of energetic particles are explored for their effectiveness at modeling observed energetic solar flare particle propagation phenomena. The observational data are mainly temporal variations in the hard X-ray and gamma ray intensity profiles in relation to the acceleration of the parent particles. Evaluations are made of a collisionally-dominated trap mechanism and the diffusion of particles into high density regions. The trapping occurs either from pitch angle scattering, by diffusion in velocity space, or by spatially homogeneous strong diffusaion. It is concluded that the lower limit of a temporal structure of high-energy radiation will measure only particle propagation and geometry and will not relay information on the mechanisms of particle propagation.
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