Cosmic Plasma Wakefield Acceleration

Details Cosmic Plasma Wakefield Acceleration Cosmic Plasma Wakefield Acceleration

Oct 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aipc..634..178c&link_type=abstract

AIP Conference Proceedings, vol. 634, p. 178

Physics

Plasma Physics

Astrophysics, Cosmic Plasma, Cosmic Rays, Gamma Ray Sources (Astronomy), Magnetohydrodynamic Waves, Plasma Acceleration, Plasma Physics, Plasma Waves, Plasmas (Physics), Space Plasmas, Cosmic Rays, Magnetohydrodynamics And Plasmas, Gamma-Ray Sources, Gamma-Ray Bursts

Scientific paper

A cosmic acceleration mechanism is introduced which is based on the wakefields excited by the Alfven shocks in a relativistically flowing plasma. We show that there exists a threshold condition for transparency below which the accelerating particle is collision-free and suffers little energy loss in the plasma medium. The stochastic encounters of the random accelerating-decelerating phases results in a power-law energy spectrum: f([epsilon]) [is proportional to] 1/[epsilon]2. As an example, we discuss the possible production of super-GZK ultra high energy cosmic rays (UHECR) in the atmosphere of gamma ray bursts. The estimated event rate in our model agrees with that from UHECR observations. [copyright] 2002 American Institute of Physics

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