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Nonlinear Cosmic Ray Diffusion Theories

  • Book
  • © 2009

Overview

Authors:
  1. Andreas Shalchi
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  • A science monograph presenting the forefront of cosmic ray diffusion theory

Part of the book series: Astrophysics and Space Science Library (ASSL, volume 362)

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Table of contents (9 chapters)

  1. Front Matter

    Pages 1-12
    Download chapter PDF

  2. The General scenario

    • Andreas Shalchi
    Pages 1-28

  3. On Astrophysical Turbulence

    • Andreas Shalchi
    Pages 29-56

  4. The Quasilinear Theory

    • Andreas Shalchi
    Pages 57-81

  5. The Nonlinear Guiding Center Theory

    • Andreas Shalchi
    Pages 83-97

  6. The Weakly Nonlinear Theory

    • Andreas Shalchi
    Pages 99-114

  7. The Second-Order QLT

    • Andreas Shalchi
    Pages 115-134

  8. The Extended Nonlinear Guiding Center Theory

    • Andreas Shalchi
    Pages 135-153

  9. Applications

    • Andreas Shalchi
    Pages 155-178

  10. Summary and Outlook

    • Andreas Shalchi
    Pages 179-186

  11. Back Matter

    Pages 1-14
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Keywords

About this book

If charged particles move through the interplanetary or interstellar medium, they interact with a large-scale magnetic ?eld such as the magnetic ?eld of the Sun or the Galactic magnetic ?eld. As these background ?elds are usually nearly constant in time and space, they can be approximated by a homogeneous ?eld. If there are no additional ?elds, the particle trajectory is a perfect helix along which the par- cle moves at a constant speed. In reality, however, there are turbulent electric and magnetic?elds dueto the interstellaror solar wind plasma. These ?elds lead to sc- tering of the cosmic rays parallel and perpendicular to the background ?eld. These scattering effects, which usually are of diffusive nature, can be described by s- tial diffusion coef?cients or, alternatively, by mean free paths. The knowledge of these parameters is essential for describing cosmic ray propagation as well as d- fusive shock acceleration. The latter process is responsible for the high cosmic ray energies that have been observed. The layout of this book is as follows. In Chap. 1, the general physical scenario is presented. We discuss fundamental processes such as cosmic ray propagation and acceleration in different systems such as the solar system or the interst- lar space. These processes are a consequence of the interaction between charged cosmic particles and an astrophysical plasma (turbulence). The properties of such plasmas are therefore the subject of Chap. 2.

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