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.
2025
39th International Cosmic Ray Conference (ICRC2025)
File in questo prodotto:
File Dimensione Formato  
APOLL01-25.pdf

accesso aperto

: Publisher’s version
Dimensione 12.66 MB
Formato Adobe PDF
12.66 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/1305871
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
  • ???jsp.display-item.citation.isi??? ND
social impact