We present an update on the arrival-direction analyses conducted on intermediate angular scales using the complete Phase I data of the Pierre Auger Observatory up to the end of 2022 with a total exposure of 135,000 km2 sr yr. We show the arrival-direction distribution of the ultra-high-energy cosmic rays along the supergalactic plane above 20 EeV, and an update in the search for magnetically-induced signatures in the arrival directions. Furthermore, we present the potential of introducing estimators for the rigidity ordering of the events to enhance arrival-direction analyses on small to intermediate angular scales. To achieve this, we take advantage of two estimators working on the response of the surface detector: an analytical fit based on air-shower universality and a deep neural network.
Update on the intermediate arrival-direction analyses of the Pierre Auger Observatory
Consolati, Giovanni;
2025-01-01
Abstract
We present an update on the arrival-direction analyses conducted on intermediate angular scales using the complete Phase I data of the Pierre Auger Observatory up to the end of 2022 with a total exposure of 135,000 km2 sr yr. We show the arrival-direction distribution of the ultra-high-energy cosmic rays along the supergalactic plane above 20 EeV, and an update in the search for magnetically-induced signatures in the arrival directions. Furthermore, we present the potential of introducing estimators for the rigidity ordering of the events to enhance arrival-direction analyses on small to intermediate angular scales. To achieve this, we take advantage of two estimators working on the response of the surface detector: an analytical fit based on air-shower universality and a deep neural network.| File | Dimensione | Formato | |
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