Non-linear diffusion of cosmic rays

作者：Ptuskin V S^*; Zirakashvili V N; Plesser A A

来源：Advances in Space Research, 2008, 42(3): 486-490.

DOI：10.1016/j.asr.2007.12.007

• cosmic rays
• supernova remnants
• interstellar turbulence
• streaming instability

The propagation of cosmic rays in the interstellar medium after their release from the sources - supernova remnants - can be attended by the development of streaming instability. The instability creates MHD turbulence that changes the conditions of particle transport and leads to a non-linear diffusion of cosmic rays. We present a self-similar solution of the equation of non-linear diffusion for particles ejected from a SNR and discuss how obtained results may change the physical picture of cosmic ray propagation in the Galaxy.

• 出版日期2008-8-5