Journal Article

Comparison of different methods for non-linear diffusive shock acceleration

D. Caprioli, Hyesung Kang, A. E. Vladimirov and T. W. Jones

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 407, issue 3, pages 1773-1783
Published in print September 2010 | ISSN: 0035-8711
Published online September 2010 | e-ISSN: 1365-2966 | DOI:
Comparison of different methods for non-linear diffusive shock acceleration

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We provide a both qualitative and quantitative comparisons among different approaches aimed at solving the problem of non-linear diffusive acceleration of particles at shocks. In particular, we show that state-of-the-art models (numerical, Monte Carlo and semi-analytical), even if based on different physical assumptions and implementations, for typical environmental parameters lead to very consistent results in terms of shock hydrodynamics, cosmic ray spectrum and also escaping flux spectrum and anisotropy. Strong points and limits of each approach are also discussed, as a function of the problem one wants to study.

Keywords: acceleration of particles; cosmic rays

Journal Article.  8584 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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