期刊
ASTROPHYSICS AND SPACE SCIENCE
卷 309, 期 1-4, 页码 119-125出版社
SPRINGER
DOI: 10.1007/s10509-007-9466-z
关键词
particle acceleration; jets; microquasars; active galaxies; gamma-ray bursts
We consider the acceleration of energetic particles by Fermi processes (i.e., diffusive shock acceleration, second order Fermi acceleration, and gradual shear acceleration) in relativistic astrophysical jets, with particular attention given to recent progress in the field of viscous shear acceleration. We analyze the associated acceleration timescales and the resulting particle distributions, and discuss the relevance of these processes for the acceleration of charged particles in the jets of AGN, GRBs and microquasars, showing that multi-component powerlaw-type particle distributions are likely to occur.
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