Nonlinear Cosmic Ray Diffusion Theories

Released on by Andreas Shalchi
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  • Nonlinear Cosmic Ray Diffusion Theories Book Detail

  • Author : Andreas Shalchi
  • Release Date : 2009-06-04
  • Publisher : Springer Science & Business Media
  • Genre : Science
  • Pages : 210
  • ISBN 13 : 3642003095
  • File Size : 91,91 MB
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Nonlinear Cosmic Ray Diffusion Theories by Andreas Shalchi PDF Summary

Book Description: 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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Nonlinear Cosmic Ray Diffusion Theories

Nonlinear Cosmic Ray Diffusion Theories

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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

Cosmic Ray Diffusion

Cosmic Ray Diffusion

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Topics discussed and summarized are: cosmic ray measurements as related to diffusion theory; quasi-linear theory, nonlinear theory, and computer simulation of c

Cosmic Ray Astrophysics

Cosmic Ray Astrophysics

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In the first part, the book gives an up-to-date summary of the observational data. In the second part, it deals with the kinetic description of cosmic ray plasm