Stochastic scattering in Cen A radio lobes
Abstract
The results of direct numerical modelling of the cosmic ray acceleration in strongly excited turbulence, where quasi-linear theory is non-applicable, are presented. We model turbulent plasma by a set of randomly propagated Alfvén waves with Kolmogorov spectrum of magnetic field fluctuations. The influence of stochastic scattering in Cen A radio lobes on correlation of the ultra high energy cosmic rays (UHECR) events registered by Auger observatory with Cen A is studied. Typical radio lobe regions, which UHECR of different chemical composition are supposed to come from, are estimated by applying numerical modelling of UHECR scattering with Fermi~II mechanism in the turbulent regions.
- Publication:
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Advances in Astronomy and Space Physics
- Pub Date:
- December 2013
- Bibcode:
- 2013AASP....3..126S
- Keywords:
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- acceleration;
- cosmic rays;
- turbulence