Non-linear diffusion of cosmic rays |
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Authors: | VS Ptuskin VN ZirakashviliAA Plesser |
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Institution: | Institute of Terrestrial Magnetism, Ionosphere and Radiowave Propagation (IZMIRAN), Troitsk, 142190 Moscow Region, Russia |
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Abstract: | 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. |
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Keywords: | Cosmic rays Supernova remnants Interstellar turbulence Streaming instability |
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