Sources and Propagation
- Hiroyuki Sagawa (Institute for Cosmic Ray Research, University of Tokyo)
Guenter Sigl (University of Hamburg)
Dr Roberto Aloisio (INAF - Osservatorio Arcetri Firenze)
We will discuss the main features of ultra high energy nuclei propagation in the intergalactic space, presenting a novel analytical approach to pursue such studies. We will also discuss a new interpretation of the experimental observations of UHECR.
Dmitri Semikoz (A)
We constrain the energy at which the transition from Galactic to extragalactic cosmic rays occurs by computing the anisotropy at Earth of cosmic rays emitted by Galactic sources. Since the diffusion approximation starts to loose its validity for E/Z >10^(16-17) eV, we propagate individual cosmic rays using Galactic magnetic field models and taking into account both their regular and turbulent...