22-24 May 2013
Physics Department, University "La Sapienza", Roma, Italy
Europe/Rome timezone

Propagation of UHECRs in the Universe

23 May 2013, 16:00
15m
Aula Giorgio Careri (first floor) (Physics Department, University "La Sapienza", Roma, Italy)

Aula Giorgio Careri (first floor)

Physics Department, University "La Sapienza", Roma, Italy

Speaker

Rafael Alves Batista (University of Hamburg)

Description

The origin, propagation, and mechanisms of acceleration of the ultra-high energy cosmic rays (UHECRs) are not yet well understood. Aiming for a better interpretation of the available experimental data, it is important to develop computational tools to propagate these cosmic rays from their source to Earth, and confront theoretical models with the current data. A realistic simulation of the propagation of UHECRs in the universe should take into account all the relevant energy loss processes due to the interaction with astrophysical backgrounds, as well as the intervening cosmic magnetic fields. Cosmological effects, such as the redshift dependence of the photon backgrounds, and the adiabatic expansion of the universe, can play an important role in the forementioned processes. Here we present for the first time the results of simulations of the propagation of UHECR through the large scale structure of the universe considering cosmological and magnetic field effects simultaneously.

Primary author

Rafael Alves Batista (University of Hamburg)

Co-authors

Guenter Sigl (University of Hamburg) Peter Schiffer (University of Hamburg)

Presentation Materials

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