Publications (26)
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…
Muon Counting using Silicon Photomultipliers in the AMIGA detector of the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +422
AMIGA (Auger Muons and Infill for the Ground Array) is an upgrade of the Pierre Auger Observatory designed to extend its energy range of detection and to directly measure the muon…
The Pierre Auger Observatory: Contributions to the 34th International Cosmic Ray Conference (ICRC 2015)
The Pierre Auger Collaboration, A. Aab, P. Abreu +449
Contributions of the Pierre Auger Collaboration to the 34th International Cosmic Ray Conference, 30 July - 6 August 2015, The Hague, The Netherlands
Multi-resolution anisotropy studies of ultrahigh-energy cosmic rays detected at the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +400
We report a multi-resolution search for anisotropies in the arrival directions of cosmic rays detected at the Pierre Auger Observatory with local zenith angles up to and…
Pierre Auger Observatory and Telescope Array: Joint Contributions to the 34th International Cosmic Ray Conference (ICRC 2015)
Telescope Array Collaboration, R. U. Abbasi, M. Abe +573
Joint contributions of the Pierre Auger Collaboration and the Telescope Array Collaboration to the 34th International Cosmic Ray Conference, 30 July - 6 August 2015, The Hague, The…
Combined fit of spectrum and composition data as measured by the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +397
We present a combined fit of a simple astrophysical model of UHECR sources to both the energy spectrum and mass composition data measured by the Pierre Auger Observatory. The fit h…
Inferences on Mass Composition and Tests of Hadronic Interactions from 0.3 to 100 EeV using the water-Cherenkov Detectors of the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +403
We present a new method for probing the hadronic interaction models at ultra-high energy and extracting details about mass composition. This is done using the time profiles of the…
Azimuthal asymmetry in the risetime of the surface detector signals of the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +436
The azimuthal asymmetry in the risetime of signals in Auger surface detector stations is a source of information on shower development. The azimuthal asymmetry is due to a combinat…
Search for correlations between the arrival directions of IceCube neutrino events and ultrahigh-energy cosmic rays detected by the Pierre Auger Observatory and the Telescope Array
The IceCube Collaboration, M. G. Aartsen, K. Abraham +863
This paper presents the results of different searches for correlations between very high-energy neutrino candidates detected by IceCube and the highest-energy cosmic rays measured…
Calibration of the Logarithmic-Periodic Dipole Antenna (LPDA) Radio Stations at the Pierre Auger Observatory using an Octocopter
The Pierre Auger Collaboration, A. Aab, P. Abreu +402
An in-situ calibration of a logarithmic periodic dipole antenna with a frequency coverage of 30 MHz to 80 MHz is performed. Such antennas are part of a radio station system used fo…
Ultrahigh-energy neutrino follow-up of Gravitational Wave events GW150914 and GW151226 with the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +410
On September 14, 2015 the Advanced LIGO detectors observed their first gravitational-wave (GW) transient GW150914. This was followed by a second GW event observed on December 26, 2…
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…
A Targeted Search for Point Sources of EeV Neutrons
The Pierre Auger Collaboration, A. Aab, P. Abreu +482
A flux of neutrons from an astrophysical source in the Galaxy can be detected in the Pierre Auger Observatory as an excess of cosmic-ray air showers arriving from the direction of…
Search for photons with energies above 10 eV using the hybrid detector of the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +397
A search for ultra-high energy photons with energies above 1 EeV is performed using nine years of data collected by the Pierre Auger Observatory in hybrid operation mode. An unprec…
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…
Search for ultrarelativistic magnetic monopoles with the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +411
We present a search for ultra-relativistic magnetic monopoles with the Pierre Auger Observatory. Such particles, possibly a relic of phase transitions in the early universe, would…
A targeted search for point sources of EeV photons with the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +397
Simultaneous measurements of air showers with the fluorescence and surface detectors of the Pierre Auger Observatory allow a sensitive search for EeV photon point sources. Several…
Evidence for a mixed mass composition at the `ankle' in the cosmic-ray spectrum
The Pierre Auger Collaboration, A. Aab, P. Abreu +423
We report a first measurement for ultra-high energy cosmic rays of the correlation between the depth of shower maximum and the signal in the water Cherenkov stations of air-showers…
Reconstruction of inclined air showers detected with the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +485
We describe the method devised to reconstruct inclined cosmic-ray air showers with zenith angles greater than detected with the surface array of the Pierre Auger Observa…
Testing Hadronic Interactions at Ultrahigh Energies with Air Showers Measured by the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +435
Ultrahigh energy cosmic ray air showers probe particle physics at energies beyond the reach of accelerators. Here we introduce a new method to test hadronic interaction models with…
The Pierre Auger Observatory: Contributions to the 35th International Cosmic Ray Conference (ICRC 2017)
The Pierre Auger Collaboration, A. Aab, P. Abreu +394
Contributions of the Pierre Auger Collaboration to the 35th International Cosmic Ray Conference (ICRC 2017), 12-20 July 2017, Bexco, Busan, Korea.
Observation of a Large-scale Anisotropy in the Arrival Directions of Cosmic Rays above eV
The Pierre Auger Collaboration, A. Aab, P. Abreu +404
Cosmic rays are atomic nuclei arriving from outer space that reach the highest energies observed in nature. Clues to their origin come from studying the distribution of their arriv…
A search for point sources of EeV photons
Pierre Auger Collaboration, A. Aab, P. Abreu +483
Measurements of air showers made using the hybrid technique developed with the fluorescence and surface detectors of the Pierre Auger Observatory allow a sensitive search for point…
Prototype muon detectors for the AMIGA component of the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +451
Auger Muons and Infill for the Ground Array) is an upgrade of the Pierre Auger Observatory to extend its range of detection and to directly measure the muon content of the particle…
The IceCube Neutrino Observatory, the Pierre Auger Observatory and the Telescope Array: Joint Contribution to the 34th International Cosmic Ray Conference (ICRC 2015)
IceCube Collaboration, M. G. Aartsen, K. Abraham +884
We have conducted three searches for correlations between ultra-high energy cosmic rays detected by the Telescope Array and the Pierre Auger Observatory, and high-energy neutrino c…
Searches for Large-Scale Anisotropy in the Arrival Directions of Cosmic Rays Detected above Energy of eV at the Pierre Auger Observatory and the Telescope Array
The Pierre Auger, Telescope Array Collaborations, : +605
Spherical harmonic moments are well-suited for capturing anisotropy at any scale in the flux of cosmic rays. An unambiguous measurement of the full set of spherical harmonic coeffi…