Göttingen 2025 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 58: Cosmic Rays III
T 58.3: Vortrag
Mittwoch, 2. April 2025, 16:45–17:00, VG 3.102
Simulating radio emission of extensive air shower with real noise for deep learning reconstruction at 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. As part of the AugerPrime upgrade, each Water Cherenkov Detector (WCD) has been equipped with an additional radio antenna, enlarging the radio detection (RD) technique to the entire array, covering 3000 km2. Realistic simulations of detector signals require realistic noise. With its unpredictable characteristics this needs to be extracted from real measured data. For vertical shower the particle footprint that triggers the station read-out is much larger than the radio footprint on the ground. We select noise data from outer stations which are not expected to have any radio-signal. The set of simulated events using the CoREAS extension of CORSIKA with this extracted realistic noise added will be used for first test of AI models to reconstruct the 3-dimensional wave propagation.
Keywords: radio detection; Noise simulation; CoREAS; CORSIKA; ErUM-Wave