Statistical Study of Bow Shock Energetic Ions

Details Statistical Study of Bow Shock Energetic Ions Statistical Study of Bow Shock Energetic Ions

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufmsm51a1614c&link_type=abstract

American Geophysical Union, Fall Meeting 2008, abstract #SM51A-1614

Physics

7807 Charged Particle Motion And Acceleration, 7845 Particle Acceleration, 7867 Wave/Particle Interactions (2483, 6984)

Scientific paper

It is generally believed that Fermi acceleration frequently takes place at the Earth's quasi-parallel bow shock and foreshock regions. Ions of solar wind energy undergo energy and spatial diffusion in this process and get accelerated to hundreds of keV by upstream turbulence and waves. It has been suggested that this acceleration process is highly associated with the bow shock magnetic geometry. With RAPID direct event data from the CLUSTER spacecraft, high-energy resolution ion composition data are extracted to determine characteristics of bow shock accelerated ions. By examining the characteristic energy of bow shock diffuse ions and shock geometry, we can then test the above hypothesis and further quantify their relationship. In this presentation, we will report our findings from a statistical study of RAPID data.

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