Particle Acceleration by Compressive Pump Mechanism: Numerical Simulations
Abstract
We study particle acceleration my compressive velocity and density fluctuations in a simple one-dimensional system similar that suggested by Fisk and Gloeckler (2008,2012). We solve the diffusive Parker-equation numerically assuming a periodic velocity and corresponding density fluctuations. The simulation is time-dependent and discuss adiabatic cooling/heating from large-scale expansion/compression and the back-reaction of accelerated particles on the core fluid. The predicted momentum spectra will be discussed. We also investigate how effective the compressive acceleration mechanism can be in producing seed particles for acceleration in the lower corona. Fisk, L.A. and G. Gloeckler, 2008: Astrophys. J., 686, 1466 Fisk, L.A. and G. Gloeckler, 2012: Space Sci. Rev., 173, 433
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2013
- Bibcode:
- 2013AGUFMSH32B..08K
- Keywords:
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- 7845 SPACE PLASMA PHYSICS Particle acceleration