2006/10/05 by Frank M. Rieger, Valenti Bosch-Ramon, Valentí Bosch-Ramon +1 · 139 citations
Physics and Astronomy · #Acceleration #Astrophysical jet #Astrophysics and Cosmic Phenomena #Charged particle #Cosmology #Fermi Gamma-ray Space Telescope #Fermi acceleration #Gamma-ray bursts and supernovae #Laser-Plasma Interactions and Diagnostics #Particle acceleration #Shock (circulatory) #astro-ph
paper · pdf · doi:10.1007/s10509-007-9466-z
published in Astrophysics and Space Science 309(1-4), 119-125 (Springer Science+Business Media) · 6 pages, one figure; based on talk at "The multimessenger approach to unidentified gamma-ray sources", Barcelona/Spain, July 2006; accepted for publication in Astrophysics and Space Science
arxiv created 2006/10/05 · openalex publication_date 2007/04/03 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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 AGNs, GRBs and microquasars, showing that multi-component powerlaw-type particle distributions are likely to occur.