CME-driven shock acceleration of energetic particles, investigation with numerical simulations and data analysis

Details CME-driven shock acceleration of energetic particles, investigation with numerical simulations and data analysis CME-driven shock acceleration of energetic particles, investigation with numerical simulations and data analysis

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmsh31a1468w&link_type=abstract

American Geophysical Union, Fall Meeting 2009, abstract #SH31A-1468

Physics

Plasma Physics

[2101] Interplanetary Physics / Coronal Mass Ejections, [2114] Interplanetary Physics / Energetic Particles, [2139] Interplanetary Physics / Interplanetary Shocks, [7845] Space Plasma Physics / Particle Acceleration

Scientific paper

CME-driven shocks in interplanetary space are considered important acceleration sites for solar energetic particles (SEPs). Therefore, it is essential to study the mechanisms of space energetic particles transport with acceleration of CME-driven shocks. For simplicity purpose, a black-box model, which treats shock acceleration as a moving source of energetic particles, can be used. We extend the black-box model by including the effects of perpendicular diffusion and magnetic field models of CMEs. In addition, we solve the SEP transport equation with the extended black-box model numerically to get intensity and anisotropy time profiles of shock accelerated particles propagating in 3-D interplanetary magnetic fields. Finally, we are able to compare our numerical results with spacecraft observations so that we can better understand SEPs acceleration by interplanetary shocks.

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