Cosmic ray propagation with CRPropa 3

R. Alves Batista, M. Erdmann, C. Evoli, K. H. Kampert, D. Kuempel, G. Mueller, G. Sigl, A. Van Vliet, D. Walz, T. Winchen

Research output: Contribution to journalConference articlepeer-review

4 Scopus citations


Solving the question of the origin of ultra-high energy cosmic rays (UHECRs) requires the development of detailed simulation tools in order to interpret the experimental data and draw conclusions on the UHECR universe. CRPropa is a public Monte Carlo code for the galactic and extragalactic propagation of cosmic ray nuclei above ∼ 1017 eV, as well as their photon and neutrino secondaries. In this contribution the new algorithms and features of CRPropa 3, the next major release, are presented. CRPropa 3 introduces time-dependent scenarios to include cosmic evolution in the presence of cosmic ray deflections in magnetic fields. The usage of high resolution magnetic fields is facilitated by shared memory parallelism, modulated fields and fields with heterogeneous resolution. Galactic propagation is enabled through the implementation of galactic magnetic field models, as well as an efficient forward propagation technique through transformation matrices. To make use of the large Python ecosystem in astrophysics CRPropa 3 can be steered and extended in Python.

Original languageBritish English
Article number012076
JournalJournal of Physics: Conference Series
Issue number1
StatePublished - 22 May 2015
Event16th International Workshop on Advanced Computing and Analysis Techniques in Physics Research: Bridging Disciplines, ACAT 2014 - Prague, Czech Republic
Duration: 1 Sep 20145 Sep 2014


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