Diffusive Shock Acceleration of Energetic Storm Particles at a Stationary "Planar" Shock

Details Diffusive Shock Acceleration of Energetic Storm Particles at a Stationary "Planar" Shock Diffusive Shock Acceleration of Energetic Storm Particles at a Stationary "Planar" Shock

May 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agusmsh41a..04l&link_type=abstract

American Geophysical Union, Spring Meeting 2008, abstract #SH41A-04

Physics

2114 Energetic Particles (7514), 2139 Interplanetary Shocks, 2149 Mhd Waves And Turbulence (2752, 6050, 7836)

Scientific paper

Coupled ion diffusive shock acceleration and hydromagnetic wave excitation by the accelerating protons is treated at a stationary planar shock with approximate inclusion of ion magnetic focusing upstream of the shock. The ion distribution functions and the wave intensity are calculated under the assumption that ions are both injected at the shock out of the solar wind plasma and advected into the shock with prescribed power-law distribution functions. The calculation of the wave intensity is performed first analytically within reasonable approximations, and second numerically without the necessity of most of the approximations required for the analytical treatment. The calculations improve on the previous work by the author. The results include predictions for the upstream ion spatial gradients, the ion energy spectra including the rollover at higher energies, the ion anisotropies, and the intensity of ions that escape upstream, all as functions of energy E, species mass-to-charge ratio A/Q, and magnetic obliquity. The wave intensity is also predicted as a function of frequency and distance from the shock.

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