Particle Acceleration in relativistic plasmas

Details Particle Acceleration in relativistic plasmas Particle Acceleration in relativistic plasmas

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufmsm51d..01l&link_type=abstract

American Geophysical Union, Fall Meeting 2007, abstract #SM51D-01

Astronomy and Astrophysics

Astrophysics

7807 Charged Particle Motion And Acceleration, 7815 Electrostatic Structures, 7829 Kinetic Waves And Instabilities, 7845 Particle Acceleration

Scientific paper

We review our recent results on particle acceleration in shocks [1], in reconnection [2] and via wave-particle interactions in microinstabilites [3]. After reviewing the fundamental issues in particle acceleration in the three classes of problems mentioned above, we focus specifically on the interactions of waves and particles during the evolution of plasma microinstabilites. We consider a new mechanism responsible for exceedingly strong acceleration events in relativistic plasmas. We conduct simulations of streaming plasmas (generated for example in astrophysical processes such as jets or in shocks) and consider the evolution of instabilities, comparing the classical and the relativistic evolution. The cause of the new processes is discussed in ration with the properties of the Minkowski space-time itself [3]. [1] G. Lapenta, J. King, JGR, to appear. [2] W. Wan, G. Lapenta, GRL, submitted [3] G. Lapenta et al, ApJ, to appear.

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