Non-linear Cosmic Ray propagation close to the acceleration site
Date Issued
2015
Author(s)
Abstract
Recent advances on gamma-ray observations from SuperNova Remnants and Molecular Clouds offer the possibility to study in detail the properties of the propagation of escaping Cosmic Rays (CR). However, a complete theory for CR transport outside the acceleration site has not been developed yet. Two physical processes are thought to be relevant to regulate the transport: the growth of waves caused by streaming instability, and possible wave damping mechanisms that reduce the growth of the turbulence. Only a few attempts have been made so far to incorporate these mechanisms in the theory of CR diffusion. In this work we present recent advances in this subject. In particular, we show results obtained by solving the coupled equations for the diffusion of CRs and the evolution of Alfven waves. We discuss the importance of streaming instabilities and wave damping in different ISM phases.
Coverage
34th International Cosmic Ray Conference (ICRC2015)
Volume
34
Start page
541
Conferenece
The 34th International Cosmic Ray Conference (ICRC2015)
Conferenece place
The Hague, The Netherlands
Conferenece date
30 July - 6 August, 2015
Ads BibCode
2015ICRC...34..541N
Rights
open.access
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