Solar Energetic Particle Spectra Produced by Shocks in Solar Corona

Details Solar Energetic Particle Spectra Produced by Shocks in Solar Corona Solar Energetic Particle Spectra Produced by Shocks in Solar Corona

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003icrc....6.3343b&link_type=abstract

Proceedings of the 28th International Cosmic Ray Conference. July 31-August 7, 2003. Trukuba, Japan. Under the auspices of the I

Computer Science

Numerical Analysis

2

Solar Corona, Shock Waves, Particle Diffusive Shock Acceleration, Solar Cosmic Rays, Shock Fronts, Solar Wind, Solar Terrestrial Interactions, Energy Spectra, Numerical Analysis, Time Dependence, Alfven Waves, Particle Emission

Scientific paper

Energetic particle (ion) acceleration by shocks during their propagation through the solar corona is studied. Diffusive transport equation is solved numerically within the range of helio centric distance where the efficient particle acceleration takes place. On later stages acceleration process becomes inefficient due to the decrease of Alfv´nic Mach number and previously produced particles e start to run away from the shock due to their progressively increasing mobility. These particles are observed in the interplanetary space as so called solar energetic particle (SEP) event. Calculated SEP spectra demonstrate good agreement with the experiment.

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