Oct 8 – 12, 2018
Ecole Supérieure de Chimie, Paris
Europe/Paris timezone

Origins of Extragalactic Cosmic Ray Nuclei by Contracting Alignment Patterns induced in the Galactic Magnetic Field

Oct 10, 2018, 10:36 AM
Main Hall (Ecole Supérieure de Chimie)

Main Hall

Ecole Supérieure de Chimie

Chimie Paris Tech


Mr Marcus Wirtz (RWTH Aachen University)


We present a novel approach to search for origins of ultra-high energy cosmic rays. In a simultaneous fit to all observed cosmic rays we use the galactic magnetic field as a mass spectrometer and adapt the nuclear charges such that their extragalactic arrival directions are concentrated in as few directions as possible. During the fit the nuclear charges are constraint by the individual energy and shower depth measurements. Using different simulated examples we show that, with the measurements on Earth, reconstruction of extragalactic source directions is possible. In particular, we show in an astrophysical scenario that source directions can be reconstructed even within a substantial isotropic background.

Primary authors

Mr Marcus Wirtz (RWTH Aachen University) Prof. Martin Erdmann (RWTH Aachen University) Mr Lukas Geiger (RWTH Aachen University) Mr David Schmidt (RWTH Aachen University) Mr Martin Urban (RWTH Aachen University)

Presentation materials