Particle Acceleration in Cusp Diamagnetic Cavities

Details Particle Acceleration in Cusp Diamagnetic Cavities Particle Acceleration in Cusp Diamagnetic Cavities

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufmsm31b0458o&link_type=abstract

American Geophysical Union, Fall Meeting 2007, abstract #SM31B-0458

Astronomy and Astrophysics

Astrophysics

2706 Cusp, 2723 Magnetic Reconnection (7526, 7835), 2724 Magnetopause And Boundary Layers, 2784 Solar Wind/Magnetosphere Interactions, 7807 Charged Particle Motion And Acceleration

Scientific paper

The acceleration of charged particles is a topic of fundamental importance in may space and astrophysics plasma systems. A particularly controversial topic is the observation of a accelerated ion populations associated with cusp diamagnetic cavities. While there are some indications that the acceleration of these particles occurs locally other observations seem to indicate the quasi-parallel bow shock as the source region for these particles. Here we will address this issue in the framework of testparticle simulations using electric and magnetic field from MHD simulations of diamagnetic cavities. The results demonstrate that particle acceleration can be highly efficient in the cavity geometry. We will review the properties of this acceleration process and compare the results to typical observations.

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