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Heidelberg 2022 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 51: Experimental Techniques in Astroparticle Physics 2

T 51.3: Vortrag

Dienstag, 22. März 2022, 16:45–17:00, T-H36

Depth of Maximum of Air-Shower Profiles at the Pierre Auger Observatory — •Thomas Fitoussi for the Pierre Auger collaboration — Karlsruhe Institute of Technology, Institute for Astroparticle Physics, Karlsruhe, Germany

The Pierre Auger Observatory is the largest ultra-high energy cosmic rays observatory in the world. Using a hybrid technique (fluorescence telescopes and surface detectors) it is possible to estimate the mass composition of cosmic rays. The main mass-sensitive observable measured with fluorescence telescopes is the depth of maximum of air-shower profiles called Xmax.

In this presentation, we will present the analysis of the most recent dataset with a special focus on results at low energies down to ∼ 1017 eV. These low energy measurements are preformed with the High Elevation Auger Telescope (HEAT) and they allow to study the energy region where the transition between Galactic and extragalactic cosmic rays is expected.

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