activity
20082026
most citedObservation of the suppression of the flux of cosmic rays above 4x10^19eV

635 citations · 2.3k across the 15 of their papers we have counts for

collaborators

15 papers

astro-ph.HE2026

Relativistic Magnetohydrodynamics from Myers-Pospelov Lorentz-Violating Electrodynamics

Matheus Duarte, Vitor de Souza

We derive the equations of relativistic magnetohydrodynamics from Lorentz-violating Myers-Pospelov electrodynamics. Starting from the modified fermionic and electromagnetic equatio…

astro-ph.HE2026

Multiwavelength study of non-thermal emission in the Swift J1834.9-0846/W41 region

Manoel F. Sousa, Rita C. Dos Anjos, Vitor de Souza

We investigate the origin of non-thermal emission from the Swift J1834-0846/W41 region by modeling its broadband spectral energy distribution from radio to TeV energies within lept…

astro-ph.HE2026

Suppression of boosted relic neutrinos by photon backgrounds during ultra-high-energy cosmic ray propagation

Gabriel Azeredo, Vitor de Souza

Constraining the cosmic neutrino background (CB) represents a major experimental challenge in cosmology. Recent studies have suggested that relic neutrinos boosted by ultra-high…

astro-ph.HE2026

Search for ultra-high energy neutrons from Galactic sources with the Pierre Auger Observatory

The Pierre Auger Collaboration, A. Abdul Halim, P. Abreu +357

Deflections in the propagation of charged ultra-high-energy cosmic rays (UHECRs) caused by magnetic fields make the identification of their sources challenging. On the other hand,…

astro-ph.HE2022★ 86 cited

Arrival Directions of Cosmic Rays above 32 EeV from Phase One of the Pierre Auger Observatory

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +372

A promising energy range to look for angular correlation between cosmic rays of extragalactic origin and their sources is at the highest energies, above few tens of EeV ($1\:{\rm E…

physics.ins-det2015★ 36 cited

Nanosecond-level time synchronization of autonomous radio detector stations for extensive air showers

The Pierre Auger Collaboration, A. Aab, P. Abreu +448

To exploit the full potential of radio measurements of cosmic-ray air showers at MHz frequencies, a detector timing synchronization within 1 ns is needed. Large distributed radio d…

hep-ex2014★ 117 cited

Muons in air showers at the Pierre Auger Observatory: Measurement of atmospheric production depth

Pierre Auger Collaboration

The surface detector array of the Pierre Auger Observatory provides information about the longitudinal development of the muonic component of extensive air showers. Using the timin…

astro-ph.HE2011★ 20 cited

The Lateral Trigger Probability function for the Ultra-High Energy Cosmic Ray Showers detected by the Pierre Auger Observatory

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +495

In this paper we introduce the concept of Lateral Trigger Probability (LTP) function, i.e., the probability for an extensive air shower (EAS) to trigger an individual detector of a…

astro-ph.IM2011★ 16 cited

The Pierre Auger Observatory V: Enhancements

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +493

Ongoing and planned enhancements of the Pierre Auger Observatory

astro-ph.HE2010★ 79 cited

The exposure of the hybrid detector of the Pierre Auger Observatory

The Pierre Auger Collaboration

The Pierre Auger Observatory is a detector for ultra-high energy cosmic rays. It consists of a surface array to measure secondary particles at ground level and a fluorescence detec…

astro-ph.HE2010★ 476 cited

Measurement of the energy spectrum of cosmic rays above 10^18 eV using the Pierre Auger Observatory

The Pierre Auger Collaboration

We report a measurement of the flux of cosmic rays with unprecedented precision and statistics using the Pierre Auger Observatory. Based on fluorescence observations in coincidence…

astro-ph.HE2010★ 548 cited

Measurement of the Depth of Maximum of Extensive Air Showers above 10^18 eV

The Pierre Auger Collaboration

We describe the measurement of the depth of maximum, Xmax, of the longitudinal development of air showers induced by cosmic rays. Almost four thousand events above 10^18 eV observe…

astro-ph.IM2009★ 58 cited

Atmospheric effects on extensive air showers observed with the Surface Detector of the Pierre Auger Observatory

The Pierre Auger Collaboration

Atmospheric parameters, such as pressure (P), temperature (T) and density, affect the development of extensive air showers initiated by energetic cosmic rays. We have studied the i…

astro-ph2008★ 635 cited

Observation of the suppression of the flux of cosmic rays above 4x10^19eV

The Pierre Auger Collaboration

The energy spectrum of cosmic rays above 2.5x10^18eV, derived from 20,000 events recorded at the Pierre Auger Observatory, is described. The spectral index gamma of the flux, J ~ E…

astro-ph2008★ 212 cited

Upper limit on the cosmic-ray photon flux above 10^19 eV using the surface detector of the Pierre Auger Observatory

The Pierre Auger Collaboration

A method is developed to search for air showers initiated by photons using data recorded by the surface detector of the Auger Observatory. The approach is based on observables sens…