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The Multi-Messenger Approach to High-Energy Gamma-Ray Sources pp 119–125Cite as

Fermi acceleration in astrophysical jets

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Abstract

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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Author information

Authors and Affiliations

  1. UCD School of Mathematical Sciences, University College Dublin, Belfield, Dublin 4, Ireland

    Frank M. Rieger & Peter Duffy

  2. Departament d’Astronomia i Meteorologia, Universitat de Barcelona, Av. Diagonal 647, 08028, Barcelona, Spain

    Valentí Bosch-Ramon

Authors
  1. Frank M. Rieger
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  2. Valentí Bosch-Ramon
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  3. Peter Duffy
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Corresponding author

Correspondence to Frank M. Rieger .

Editor information

Josep M. Paredes Olaf Reimer Diego F. Torres

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Rieger, F.M., Bosch-Ramon, V., Duffy, P. (2007). Fermi acceleration in astrophysical jets. In: Paredes, J., Reimer, O., Torres, D. (eds) The Multi-Messenger Approach to High-Energy Gamma-Ray Sources. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-6118-9_19

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