activity
20202025
most citedMeasurement of the cosmic-ray energy spectrum above eV using the Pierre Auger Observatory

213 citations · 768 across the 26 of their papers we have counts for

collaborators

30 papers

astro-ph.SR2025

Scaler data from the Pierre Auger Observatory as a proxy of solar activity

C. Taricco, I. Bizzarri, C. Dionese +1

Solar activity variations strongly impact the modulation of the flux of low-energy Galactic Cosmic Rays (GCRs) reaching the Earth. The secondary particles, which originate from the…

astro-ph.HE2025

Search for UHE neutrinos from GRBs with the Pierre Auger Observatory

Yago Lema-Capeans

We report on the search for ultra-high-energy neutrinos from the prompt emission of gamma-ray bursts (GRBs) using Surface Detector (SD) data from Phase I of the Pierre Auger Observ…

astro-ph.IM2025

AugerPrime: Status and first results

David Schmidt

With the knowledge and statistical precision derived from two decades of measurement, the Pierre Auger Observatory has significantly deepened our understanding of ultra-high-energy…

astro-ph.HE2025

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

A. Gálvez Ureña, L. Anchordoqui, M. Bianciotto +17

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 Pi…

astro-ph.HE2025

Study of solar activity with AERA at the Pierre Auger Observatory

R. M. de Almeida

Solar activity events release vast amounts of energy, including radio waves, X-rays, ultraviolet radiation, and energetic particles, which interact with the ionosphere of the Earth…

astro-ph.HE2025

Measuring the muon content of inclined air showers using AERA and the water-Cherenkov detectors of the Pierre Auger Observatory

The Pierre Auger Collaboration, A. Abdul Halim, P. Abreu +360

We present a novel approach for assessing the muon content of air showers with large zenith angles on a combined analysis of their radio emission and particle footprint. We use the…

astro-ph.IM2024★ 1 cited

Towards a Cosmic-Ray Energy Scale with the Auger Engineering Radio Array

Max Büsken

Radio detection of cosmic-ray (CR) induced extensive air showers with digital antenna arrays is a matured technique by now. At the Pierre Auger Observatory, the Auger Engineering R…

astro-ph.HE2023

AugerPrime Surface Detector Electronics

The Pierre Auger Collaboration, A. Abdul Halim, P. Abreu +368

Operating since 2004, the Pierre Auger Observatory has led to major advances in our understanding of the ultra-high-energy cosmic rays. The latest findings have revealed new insigh…

astro-ph.HE2023★ 23 cited

Radio Measurements of the Depth of Air-Shower Maximum at the Pierre Auger Observatory

The Pierre Auger Collaboration, A. Abdul Halim, P. Abreu +372

The Auger Engineering Radio Array (AERA), part of the Pierre Auger Observatory, is currently the largest array of radio antenna stations deployed for the detection of cosmic rays,…

astro-ph.HE2023★ 19 cited

Demonstrating Agreement between Radio and Fluorescence Measurements of the Depth of Maximum of Extensive Air Showers at the Pierre Auger Observatory

The Pierre Auger Collaboration, A. Abdul Halim, P. Abreu +372

We show, for the first time, radio measurements of the depth of shower maximum () of air showers induced by cosmic rays that are compared to measurements of the estab…

astro-ph.HE2023★ 4 cited

The Pierre Auger Observatory Open Data

The Pierre Auger Collaboration, A. Abdul Halim, P. Abreu +358

The Pierre Auger Collaboration has embraced the concept of open access to their research data since its foundation, with the aim of giving access to the widest possible community.…

astro-ph.HE2023★ 6 cited

Search for UHE Photons from Gravitational Wave Sources with the Pierre Auger Observatory

The Pierre Auger Collaboration, A. Abdul Halim, P. Abreu +368

A search for time-directional coincidences of ultra-high-energy (UHE) photons above 10 EeV with gravitational wave (GW) events from the LIGO/Virgo runs O1 to O3 is conducted with t…

astro-ph.HE2023★ 33 cited

Constraining models for the origin of ultra-high-energy cosmic rays with a novel combined analysis of arrival directions, spectrum, and composition data measured at the Pierre Auger Observatory

The Pierre Auger Collaboration, A. Abdul Halim, P. Abreu +371

The combined fit of the measured energy spectrum and shower maximum depth distributions of ultra-high-energy cosmic rays is known to constrain the parameters of astrophysical model…

astro-ph.HE2022

A Catalog of the Highest-Energy Cosmic Rays Recorded During Phase I of Operation of the Pierre Auger Observatory

The Pierre Auger Collaboration, A. Abdul Halim, P. Abreu +376

A catalog containing details of the highest-energy cosmic rays recorded through the detection of extensive air-showers at the Pierre Auger Observatory is presented with the aim of…

astro-ph.HE2022★ 66 cited

Constraining the sources of ultra-high-energy cosmic rays across and above the ankle with the spectrum and composition data measured at the Pierre Auger Observatory

The Pierre Auger Collaboration, A. Abdul Halim, P. Abreu +365

In this work we present the interpretation of the energy spectrum and mass composition data as measured by the Pierre Auger Collaboration above eV. We use an ast…

astro-ph.HE2022★ 23 cited

Searches for Ultra-High-Energy Photons at the Pierre Auger Observatory

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +362

The Pierre Auger Observatory, being the largest air-shower experiment in the world, offers an unprecedented exposure to neutral particles at the highest energies. Since the start o…

astro-ph.HE2022

Search for photons above 10 eV with the surface detector of the Pierre Auger Observatory

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +365

We use the surface detector of the Pierre Auger Observatory to search for air showers initiated by photons with an energy above eV. Photons in the zenith angle range from…

astro-ph.HE2022

Cosmological implications of photon-flux upper limits at ultra-high energies in scenarios of Planckian-interacting massive particles for dark matter

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +374

Using the data of the Pierre Auger Observatory, we report on a search for signatures that would be suggestive of super-heavy particles decaying in the Galactic halo. From the lack…

astro-ph.HE2022

Investigating Hadronic Interactions at Ultra-High Energies with the Pierre Auger Observatory

Isabel Goos, :, P. Abreu +374

The development of an extensive air shower depends not only on the nature of the primary ultra-high-energy cosmic ray but also on the properties of the hadronic interactions. For e…

astro-ph.HE2022★ 22 cited

Limits to gauge coupling in the dark sector set by the non-observation of instanton-induced decay of Super-Heavy Dark Matter in the Pierre Auger Observatory data

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +374

Instantons, which are non-perturbative solutions to Yang-Mills equations, provide a signal for the occurrence of quantum tunneling between distinct classes of vacua. They can give…

astro-ph.HE2022★ 32 cited

Testing effects of Lorentz invariance violation in the propagation of astroparticles with the Pierre Auger Observatory

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +374

Lorentz invariance violation (LIV) is often described by dispersion relations of the form with delta different based on particle type , with…

astro-ph.HE2021★ 114 cited

The energy spectrum of cosmic rays beyond the turn-down around eV as measured with the surface detector of the Pierre Auger Observatory

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +374

We present a measurement of the cosmic-ray spectrum above 100\,PeV using the part of the surface detector of the Pierre Auger Observatory that has a spacing of 750~m. An inflection…

hep-ex2021★ 86 cited

Measurement of the fluctuations in the number of muons in extensive air showers with the Pierre Auger Observatory

The Pierre Auger Collaboration, A. Aab, P. Abreu +365

We present the first measurement of the fluctuations in the number of muons in extensive air showers produced by ultrahigh energy cosmic rays. We find that the measured fluctuation…

astro-ph.IM2021★ 4 cited

The FRAM robotic telescope for atmospheric monitoring at the Pierre Auger Observatory

The Pierre Auger Collaboration, A. Aab, P. Abreu +377

FRAM (F/Photometric Robotic Atmospheric Monitor) is a robotic telescope operated at the Pierre Auger Observatory in Argentina for the purposes of atmospheric monitoring using stell…