14–24 Jul 2025
CICG - International Conference Centre - Geneva, Switzerland
Europe/Zurich timezone

New full-sky studies of the distribution of ultra-high-energy cosmic-ray arrival directions

15 Jul 2025, 13:35
15m
Room C

Room C

Talk Cosmic-Ray Indirect CRI

Speaker

Alberto Gálvez Ureña

Description

Ground-based full-sky studies of the angular distribution of arrival directions of ultra-high-energy cosmic rays require combining data from different observatories, such as the Pierre Auger Observatory (Auger) and the Telescope Array (TA), because no single array can cover all declinations. A working group comprising members from the Auger and TA collaborations has been tasked with performing such studies for more than a decade and has found several indications of full-sky anisotropies. Here, in addition to an overview of previous results, we apply new analysis techniques to data that were previously only used on simulations.

Collaboration(s) Pierre Auger and Telescope Array collaborations

Authors

Alberto Gálvez Ureña Luis Anchordoqui (University of Wisconsin-Milwaukee) Marta Bianciotto Peter Biermann (MPIfR) Teresa Bister Jonathan Biteau (Université Paris-Sud, Université Paris/Saclay, CNRS-IN2P3, Institut de Physique Nucléaire d’Orsay (IPNO), Paris, France) Lorenzo Caccianiga (INFN - Sezione di MIlano) Olivier DELIGNY Luca Deval Armando di Matteo (INFN and University of L'Aquila) Ugo Gregorio Giaccari (IMAPP, Radboud University Nijmegen, Nijmegen, The Netherlands) Geraldina Golup Ryo Higuchi Jihyun Kim (Ulsan National Institute of Science and Technology) Mikhail Kuznetsov Jon Paul Lundquist (University of Nova Gorica - Center for Astrophysics and Cosmology) FEDERICO MARIA MARIANI Grigory Rubtsov (INR RAS) Peter Tinyakov (Universite Libre de Bruxelles (ULB)) Federico Urban (KBFI)

Presentation materials