Exploring the Ultra-High-Energy Universe: Highlights from the Pierre Auger Observatory

作者：M. Roth, Adila Abdul Halim, P. Abreu, M. Aglietta, I. Allekotte, Kévin Almeida Cheminant, Alejandro Almela, Roberto Aloisio, Jaime Álvarez-Muñiz, Antonio Ambrosone, Juan Ammerman Yebra, Gioacchino Alex Anastasi, Luis A. Anchordoqui, Belén Andrada, Luciana Andrade Dourado, S. Andringa, Lorenzo Apollonio, C. Aramo, Enrico Arnone, Juan Carlos Arteaga Velázquez, P. Assis, Gualberto Avila, Emanuele Avocone, Alena Bakalová, Felicia Barbato, Adriel Bartz Mocellin, Jose A. Bellido, Corinne Bérat, М. Бертаина, Marta Bianciotto, Peter L. Biermann, Virginia Binet, Kathrin Bismark, Teresa Bister, Jonathan Biteau, Jiří Blažek, Johannes Blümer, Martina Boháčová, Denise Boncioli, C. Bonifazi, Luan Bonneau Arbeletche, Nataliia Borodai, Jeffrey Brack, P. Gabriel Brichetto Orchera, Florian Lukas Briechle, A. Bueno, S. Buitink, Mario Buscemi, Max Büsken, Anthony Bwembya, K. S. Caballero‐Mora, Sergio Cabana-Freire, Lorenzo Caccianiga, Federico Campuzano, Jorge Caraça-Valente, R. Caruso, A. Castellina, Fernando Catalani, G. Cataldi, Lorenzo Cazon, Marcos Cerda, Berenika Čermáková, Alessandro Cermenati, J. A. Chinellato, J. Chudoba, L. Chytka, Roger W Clay, Agustín Cobos Cerutti, Roberta Colalillo, R. Conceição, Giovanni Consolati, Matteo Conte, Fabio Convenga, Diego Correia dos Santos, Pedro J. Costa, C. E. Covault, M. Cristinziani, Carlo Salvattore Cruz Sanchez, S. Dasso, K. Daumiller, B. R. Dawson, Rogerio M. de Almeida, Eric-Teunis de Boone, Beatriz de Errico, Joaquín de Jesús, S. J. de Jong, João de Mello Neto, I. De Mitri, Jaime de Oliveira, Danelise de Oliveira Franco, Francesco de Palma, Vitor de Souza, Emanuele De Vito, Antonino Del Popolo, Olivier Deligny, Nikolas Denner, Luca Deval, Armando di Matteo, C. Dobrigkeit, Juan Carlos D'Olivo, Luis Miguel Domingues Mendes, Qader Dorosti, Joao dos Anjos, Rita Cassia dos Anjos, Jan Ebr, Fiona H. Ellwanger, Ralph Engel, Italo Epicoco, M. Erdmann, Alberto Etchegoyen, Carmelo Evoli, H. Falcke, Glennys R. Farrar, A. C. Fauth, Tim Fehler, Fridtjof Feldbusch, Alexandra Fernandes, Mateo Fernandez, Brian Fick, Juan Manuel Figueira, Paul Filip, Andrej Filipčič, Thomas Fitoussi, Benjamin Flaggs, Tomáš Fodran, Antonio Franco, Milton Freitas, Toshihiro Fujii, Alan Fuster, Cristina Galea, B. Garćıa, Chloé Gaudu, Piera Luisa Ghia, Ugo GIACCARI, Fabian Gobbi, Fernando Gollan, G. Golup, M. Gómez Berisso, Primo F. Gómez Vitale, Juan Pablo Gongora, Juan Manuel Gonzalez, Nicolás Martín González, Dariusz Gora, A. Gorgi, Marvin Gottowik, F. Guarino, Germano Guedes, Lukas Gülzow, Steffen Hahn, P. Hamal, Matías Rolf Hampel, Patricia María Hansen, Violet M. Harvey, A. Haungs, T. Hebbeker, C. Hojvat, Jörg Hörandel, Pavel Horváth, Miroslav Hrabovský, T. Huege, A. Insolia, Paula Gina Isar, Mohamed Ismaiel, Petr Janeček, Vlastimil Jílek, Karl-Heinz Kampert, B. Keilhauer, Abha Khakurdikar, Varada Varma Kizakke Covilakam, H.O. Klages, Matthias Kleifges, Jelena Köhler, Frederik Krieger, Margita Kubátová, Norbert Kunka, Bruno L. Lago, Niklas Langner, Nicolas Leal, Marcelo Augusto Leigui de Oliveira, Yago Lema-Capeans, A. Letessier‐Selvon, Isabelle Lhenry-Yvon, L. Lopes, Jon Paul Lundquist, M. Mallamaci, Dušan Mandát, P. Mantsch, Federico Maria Mariani, Analisa Mariazzi, Ioana Codrina Maris, G. Marsella, Daniele Martello, Sara Martinelli, Miguel A. Martins, Hermann-Josef Mathes, J. Matthews, Giorgio Matthiae, Eric William Mayotte, Sonja Mayotte, Peter Mazur, Gustavo Medina‐Tanco, Janning Meinert, Diego Melo, Alexander Menshikov, Carmen Merx, Stanislav Michal, María Isabel Micheletti, L. Miramonti, Megha Mogarkar, Silvia Mollerach, F. Montanet, Leonel Morejón, Katharine Mulrey, R. Mussa, Wilson M. Namasaka, Shefali Negi, L. Nellen, Khoa Nguyen, Gabriela Nicora, Marcus Niechciol, Dave Nitz, Dalibor Nosek, Alexander Novikov, Vladimír Novotný, Libor Nožka, Achille Nucita, Luis A. Núñez, José Ochoa, Cainã Oliveira, Leo Östman, M. Palatka, Juan Pallotta, Shayoni Panja, G. Parente, Therese Paulsen, Jannis Pawlowsky, M. Pech, Jan Pękala, Rodrigo Pelayo, Vincent Pelgrims, Luiz Augusto Pereira, Edyvânia Emily Pereira Martins, Carmina Pérez Bertolli, Lorenzo Perrone, S. Petrera, Camilla Petrucci, T. Pierog, Mário Pimenta, Manuel Platino, Bjarni Pont, Mohsen Pourmohammad Shahvar, Paolo Privitera, Chaitanya Priyadarshi, Michael Prouza, Krzysztof Pytel, Sven Querchfeld, J. Rautenberg, Diego Ravignani, João Vítor Reginatto Akim, Alex Reuzki, J. Řídký, Felix Riehn, Markus Risse, V. Rizi, Ezequiel Rodriguez, Gonzalo Rodriguez Fernandez, Jorge Rubén Rodriguez Rojo, Simone Rossoni, Esteban Roulet, Adrián Rovero, A. Sǎftoiu, Mohit Saharan, F. Salamida, Humberto Ibarguen Salazar, Gaetano Salina, Pranav Sampathkumar, Nicolas San Martin, Jose Sanabria Gomez, Federico Sánchez, Edivaldo Moura Santos, Eva Santos, F. Sarazin, R. Sarmento, Ricardo Sato, Pierpaolo Savina, Viviana Scherini, H. Schieler, Martin Schimassek, Michael Schimp, David Schmidt, O. Schölten, Harm Schoorlemmer, Petr Schovanek, Frank Schröder, Josina Schulte, Tobias Schulz, Sergio J Sciutto, Marina Scornavacche, Adrian Sedoski, A. Segreto, Srijan Sehgal, Shima Ujjani Shivashankara, G. Sigl, Katarína Simkova, F. Simon, Radomir Šmída, Paul Sommers, Ruben Squartini, Maximilian Stadelmaier, S. Stanič, Jarosław Stasielak, Patrick Stassi, Simon Strähnz, Maximilian Straub, Tiina Suomijärvi, A. D. Supanitsky, Zuzana Svozilikova, Karolina Syrokvas, Zbigniew Szadkowski, Fedor Tairli, Matteo Tambone, A. Tapia, Carla Taricco, Charles Timmermans, Olena Tkachenko, Petr Tobiška, Carlos J. Todero Peixoto, B. Tomé, Andres Travaini, P. Trávnı́ček, Matias Jorge Tueros, M. Unger, Rukije Uzeiroska, Lukáš Vaclavek, Martin Vacula, Igor Vaiman, Jose F. Valdés Galicia, Laura Valore, Pim van Dillen, Enrique Varela, Veronika Vašíčková, Adriana Vásquez-Ramírez, Darko Veberič, Indira D. Vergara Quispe, Stef Verpoest, V. Verzi, J. Vícha, Jacco Vink, S. Vorobiov, Jhansi Bhavani Vuta, Clara Keiko Oliveira Watanabe, Alan Watson, Andreas Weindl, Melanie Weitz, Lawrence Wiencke, H. Wilczyński, Brian Wundheiler, Bin Yue, Alexey Yushkov, E. Zas, Danilo Zavrtanik, Marko Zavrtanik · 年份：2025 · DOI：10.22323/1.501.1402 · 研究领域：Astrophysics and Cosmic Phenomena、Dark Matter and Cosmic Phenomena、Neutrino Physics Research

The Pierre Auger Observatory is the world’s largest facility dedicated to studying ultra-high-energy cosmic rays (UHECRs). Located in Argentina, it spans 3,000 square kilometers and utilizes a hybrid detection system comprising over 1,600 Water-Cherenkov detectors and fluorescence telescopes. Since its inception in 2004, the Observatory has provided groundbreaking insights into the energy spectrum, mass composition, and arrival direction anisotropies of cosmic rays. Phase-I data analysis, covering the years 2004-2022, has revealed critical features such as large-scale anisotropies and spectral features such as the instep and the suppression of flux at the highest energies, thus advancing our understanding of the origin and propagation of UHECRs. The hybrid detection approach has enabled precise measurements of air showers and muon content, offering constraints on hadronic interaction models. Furthermore, searches for neutral particles have been performed, contributing to multi-messenger astrophysics. The ongoing AugerPrime upgrade aims to refine mass composition studies by integrating scintillator detectors, improved electronics, underground muon detectors, and radio antennas, enhancing sensitivity to primary cosmic-ray properties. We present the key scientific achievements from Phase I and discuss the transformative potential of AugerPrime in addressing fundamental questions about the origin of UHECRs.