Cosmic Plasma Wakefield Acceleration.

Chen, P. ; Tajima, T. ; Takahashi, Y.

Technical Information Center Oak Ridge Tennessee

关键词: Cosmic plasma;    Acceleration;    Plasma;    Alfven waves;    Gamma ray bursts;   

RP-ID  :  DE2004826879

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

Recently we proposed a new cosmic acceleration mechanism which was based on the wakefields excited by the Alfven shocks in a relativistically owing plasma. In this paper we include some omitted details, and 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)) (proportional to) 1/(epsilon)(sup 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.