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T: Fachverband Teilchenphysik
T 35: Cosmic rays 4
T 35.5: Vortrag
Dienstag, 5. März 2024, 17:00–17:15, Geb. 30.22: Lehmann-HS
A Noise Library for the Radio Detector of the Pierre Auger Observatory* — •Sven Querchfeld and Julian Rautenberg for the Pierre-Auger collaboration — Bergische Universität Wuppertal, Gaußstraße 20, 42119 Wuppertal
The ErUM-Wave project aims to develop an AI model to reconstruct 3-dimensional wave fields with the goal to predict the propagation of seismic waves based on only a few measurements. To test the transferability of the developed method to other fields, it will be applied to the propagation of radio waves in the atmosphere. These waves are produced by cosmic ray-induced air showers measured with the Pierre Auger Observatory, which is currently upgrading its 1660 Surface Detector stations with supplementary detectors to be more sensitive to the composition of ultra-high energy cosmic rays. As part of the AugerPrime upgrade, each Water Cherenkov Detector (WCD) is equipped with an additional radio antenna, enlarging the radio detection (RD) technique to the entire array, covering nearly 3000 km2.
The tests will be performed on simulations produced with the CoREAS extension of CORSIKA. Since no realistic noise files are available from these simulations, a method is shown to retrieve them from real events. Relying on the WCD as a trigger, RD stations at larger distances from the shower core should contain predominantly background signal due to the small radio footprint for vertical showers. A detailed study of these traces and a comparison to noise retrieved from a subset of triggered signal traces is shown.
*Supported by BMBF, Vorhaben 05D23PX1
Keywords: radio; noise; CoREAS; CORSIKA; ErUM-Wave