Aachen 2019 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 61: Kosmische Strahlung III

T 61.8: Vortrag

Mittwoch, 27. März 2019, 17:55–18:10, S13

Contracting Alignment Patterns in the arrival directions of Ultra High Energy Cosmic Rays induced in the Galactic Magnetic Field — •Marcus Wirtz, Martin Erdmann, Lukas Geiger, David Schmidt, and Martin Urban — III. Physikalisches Institut A, RWTH Aachen University, Deutschland

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 a data driven galactic magnetic field model 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. We show in a simulated astrophysical scenario that source directions can be reconstructed even within a substantial isotropic background and without exact knowledge of the galactic magnetic field.