TY - CHAP AU - Sigl, Guenter TI - Propagation of Very High Energy Radiation in the Universe CY - Hamburg PB - Verlag Deutsches Elektronen-Synchrotron M1 - PUBDB-2018-03606 SN - 9783945931219 SP - 379-386 PY - 2018 AB - The sources of cosmic rays, in particular ultra-high energy cosmic rays with macroscopic energies above ∼ 10<sup>18</sup> eV, have still not been identified. This is partly caused by the fact that the sky observed in these cosmic rays is surprisingly isotropic and that deflection in galactic and extragalactic magnetic fields may still be substantial. The main goal of project C8 of the SFB 676 was to further develop a general software tool, known as CRPropa, which allows to propagate ultra-high energy cosmic rays from the sources to the observer and make predictions for spectrum, mass composition and sky distribution with a given astrophysical scenario for distribution and injection spectra and composition of the sources and the structure of cosmic magnetic fields. LB - PUB:(DE-HGF)7 DO - DOI:10.3204/PUBDB-2018-00782/C8 UR - https://bib-pubdb1.desy.de/record/410424 ER -