activity
20052026
most citedObservation of a Large-scale Anisotropy in the Arrival Directions of Cosmic Rays above eV

409 citations · 8.1k across the 147 of their papers we have counts for

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25 papers · 1 filter

astro-ph.IM2025

HAWC Performance Enhanced by Machine Learning in Gamma-Hadron Separation

R. Alfaro, C. Alvarez, A. Andrés +92

Improving gamma-hadron separation is one of the most effective ways to enhance the performance of ground-based gamma-ray observatories. With over a decade of continuous operation,…

astro-ph.IM2024★ 32 cited

EUSO-SPB1 Mission and Science

EUSO Collaboration, G. Abdellaoui, S. Abe +292

The Extreme Universe Space Observatory on a Super Pressure Balloon 1 (EUSO-SPB1) was launched in 2017 April from Wanaka, New Zealand. The plan of this mission of opportunity on a N…

astro-ph.IM2022★ 1 cited

Validation of standardized data formats and tools for ground-level particle-based gamma-ray observatories

A. Albert, R. Alfaro, J. C. Arteaga-Velázquez +74

Ground-based gamma-ray astronomy is still a rather young field of research, with strong historical connections to particle physics. This is why most observations are conducted by e…

astro-ph.IM2021★ 28 cited

TeV emission of Galactic plane sources with HAWC and H.E.S.S

H. Abdalla, F. Aharonian, F. Ait Benkhali +318

The High Altitude Water Cherenkov (HAWC) observatory and the High Energy Stereoscopic System (H.E.S.S.) are two leading instruments in the ground-based very-high-energy gamma-ray d…

astro-ph.IM2020★ 30 cited

Reconstruction of Events Recorded with the Surface Detector of the Pierre Auger Observatory

The Pierre Auger Collaboration, A. Aab, P. Abreu +378

Cosmic rays arriving at Earth collide with the upper parts of the atmosphere, thereby inducing extensive air showers. When secondary particles from the cascade arrive at the ground…

astro-ph.IM2020★ 7 cited

Studies on the response of a water-Cherenkov detector of the Pierre Auger Observatory to atmospheric muons using an RPC hodoscope

The Pierre Auger Collaboration, A. Aab, P. Abreu +375

Extensive air showers, originating from ultra-high energy cosmic rays, have been successfully measured through the use of arrays of water-Cherenkov detectors (WCDs). Sophisticated…

astro-ph.IM2018★ 24 cited

First observations of speed of light tracks by a fluorescence detector looking down on the atmosphere

G. Abdellaoui, S. Abe, J. H. Adams +311

EUSO-Balloon is a pathfinder mission for the Extreme Universe Space Observatory onboard the Japanese Experiment Module (JEM-EUSO). It was launched on the moonless night of the 25$^…

astro-ph.IM2018★ 65 cited

Observation of inclined EeV air showers with the radio detector of the Pierre Auger Observatory

The Pierre Auger Collaboration, A. Aab, P. Abreu +392

With the Auger Engineering Radio Array (AERA) of the Pierre Auger Observatory, we have observed the radio emission from 561 extensive air showers with zenith angles between 60$^\ci…

astro-ph.IM2017★ 18 cited

Spectral Calibration of the Fluorescence Telescopes of the Pierre Auger Observatory

The Pierre Auger Collaboration, A. Aab, P. Abreu +403

We present a novel method to measure precisely the relative spectral response of the fluorescence telescopes of the Pierre Auger Observatory. We used a portable light source based…

astro-ph.IM2017★ 27 cited

Data Acquisition Architecture and Online Processing System for the HAWC gamma-ray observatory

HAWC collaboration, A. U. Abeysekara, R. Alfaro +105

The High Altitude Water Cherenkov observatory (HAWC) is an air shower array devised for TeV gamma-ray astronomy. HAWC is located at an altitude of 4100 m a.s.l. in Sierra Negra, Me…

astro-ph.IM2016★ 2 cited

The Latin American Giant Observatory: Contributions to the 34th International Cosmic Ray Conference (ICRC 2015)

The LAGO Collaboration, W. Alvarez, C. Alvarez +86

The Latin American Giant Observatory (LAGO) is an extended cosmic ray observatory composed by a network of water-Cherenkov detectors spanning over different sites located at signif…

astro-ph.IM2016★ 103 cited

The Pierre Auger Observatory Upgrade - Preliminary Design Report

The Pierre Auger Collaboration, A. Aab, P. Abreu +462

The Pierre Auger Observatory has begun a major Upgrade of its already impressive capabilities, with an emphasis on improved mass composition determination using the surface detecto…

astro-ph.IM2014★ 16 cited

VAMOS: a Pathfinder for the HAWC Gamma-Ray Observatory

A. U. Abeysekara, R. Alfaro, C. Alvarez +133

VAMOS was a prototype detector built in 2011 at an altitude of 4100m a.s.l. in the state of Puebla, Mexico. The aim of VAMOS was to finalize the design, construction techniques and…

astro-ph.IM2014★ 10 cited

Origin of atmospheric aerosols at the Pierre Auger Observatory using studies of air mass trajectories in South America

Pierre Auger Collaboration, Gabriele Curci

The Pierre Auger Observatory is making significant contributions towards understanding the nature and origin of ultra-high energy cosmic rays. One of its main challenges is the mon…

astro-ph.IM2014★ 17 cited

The Atmospheric Monitoring system of the JEM-EUSO telescope

S. Toscano, A. Neronov, M. D. Rodríguez Frías +1

The JEM-EUSO observatory on board of the International Space Station (ISS) is a proposed pioneering space mission devoted to the investigation of Ultra High Energy Cosmic Rays (UHE…

astro-ph.IM2013★ 16 cited

The HAWC Gamma-Ray Observatory: Design, Calibration, and Operation

HAWC Collaboration, A. U. Abeysekara, R. Alfaro +99

The High-Altitude Water Cherenkov Gamma Ray Observatory (HAWC) is under construction 4100 meters above sea level at Sierra Negra, Mexico. We describe the design and cabling of the…

astro-ph.IM2012★ 148 cited

Antennas for the Detection of Radio Emission Pulses from Cosmic-Ray induced Air Showers at the Pierre Auger Observatory

P. Abreu, M. Aglietta, M. Ahlers +512

The Pierre Auger Observatory is exploring the potential of the radio detection technique to study extensive air showers induced by ultra-high energy cosmic rays. The Auger Engineer…

astro-ph.IM2012★ 35 cited

The Rapid Atmospheric Monitoring System of the Pierre Auger Observatory

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +508

The Pierre Auger Observatory is a facility built to detect air showers produced by cosmic rays above 10^17 eV. During clear nights with a low illuminated moon fraction, the UV fluo…

astro-ph.IM2012★ 13 cited

The JEM-EUSO Mission: Status and Prospects in 2011

EUSO Collaboration, J. H. Adams, S. Ahmad +256

Contributions of the JEM-EUSO Collaboration to the 32nd International Cosmic Ray Conference, Beijing, August, 2011.

astro-ph.IM2011★ 211 cited

Trigger and Aperture of the Surface Detector Array of the Pierre Auger Observatory

J. Abraham, P. Abreu, M. Aglietta +469

The surface detector array of the Pierre Auger Observatory consists of 1600 water-Cherenkov detectors, for the study of extensive air showers (EAS) generated by ultra-high-energy c…

astro-ph.IM2011★ 9 cited

The Pierre Auger Observatory IV: Operation and Monitoring

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

Technical reports on operations and monitoring of the Pierre Auger Observatory

astro-ph.IM2011★ 82 cited

Advanced functionality for radio analysis in the Offline software framework of the Pierre Auger Observatory

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +468

The advent of the Auger Engineering Radio Array (AERA) necessitates the development of a powerful framework for the analysis of radio measurements of cosmic ray air showers. As AER…

astro-ph.IM2009★ 380 cited

The Fluorescence Detector of the Pierre Auger Observatory

The Pierre Auger Collaboration, J. Abraham, P. Abreu +515

The Pierre Auger Observatory is a hybrid detector for ultra-high energy cosmic rays. It combines a surface array to measure secondary particles at ground level together with a fluo…

astro-ph.IM2009★ 6 cited

Operations of and Future Plans for the Pierre Auger Observatory

The Pierre Auger Collaboration, J. Abraham, P. Abreu +469

Technical reports on operations and features of the Pierre Auger Observatory, including ongoing and planned enhancements and the status of the future northern hemisphere portion of…