Wuppertal 2015 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 92: Kosmische Strahlung VII
T 92.5: Vortrag
Donnerstag, 12. März 2015, 17:45–18:00, I.13.65 (HS 26)
Latest Developments in CRPropa - A Tool to Propagate UHE Cosmic Rays through Galactic and Extragalactic Space* — Rafael Alves Batista1, Martin Erdmann2, Carmelo Evoli1, Karl-Heinz Kampert3, •Daniel Kuempel2, Gero Mueller2, Guenter Sigl1, Arjen van Vliet1, David Walz2, and Tobias Winchen3 — 1II. Institut für Theoretische Physik, Universität Hamburg — 2III. Physikalisches Institut A, RWTH Aachen — 3Fachbereich C, Bergische Universität Wuppertal
More than 100 years after the discovery of cosmic rays and various experimental efforts, the origin of ultra-high energy cosmic rays (E > 1017 eV) remains unclear. The understanding of production and propagation effects of these highest energy particles in the universe is one of the most intense research fields of high-energy astrophysics. With the advent of advanced simulation engines developed during the last couple of years, we are now in a unique position to model source and propagation parameters with an unprecedented precision and compare it to measured data from observatories. In this contribution latest developments and capabilities of the publicly available propagation code CRPropa are presented. In particular, the impact of new background photon fields and updated TALYS 1.6 databases for computing photodisintegration cross sections. Finally, some applications of the code are illustrated including the simulation of secondary particles.
* Gefördert durch die BMBF-Verbundforschung Astroteilchenphysik, die Helmholtz-Allianz für Astroteilchenphysik, die DFG im Rahmen des SFB 676 und die Forschungs- und Wissenschaftsstiftung Hamburg.