Results 61 to 70 of about 19,622 (273)

Mass composition of cosmic rays with energies from [1017.2]eV to [1020]eV using surface and fluorescence detectors of the Pierre Auger Observatory

open access: yesEPJ Web of Conferences, 2018
Ultra-high-energy cosmic rays (UHECRs) are highly energetic particles with []EeV energies, exceeding the capabilities of man-made colliders. They hold information on extreme astrophysical processes that create them and the medium they traverse on their ...
Kukec Mezek Gašper
doaj   +1 more source

Status and perspectives of the radio detection of highenergy cosmic rays [PDF]

open access: yesEPJ Web of Conferences, 2019
Status and perspectives of the radio detection of high-energy cosmic rays are discussed with emphasis on recent developments at the LOFAR radio telescope and the Pierre Auger Observatory.
Hörandel Jörg R.
doaj   +1 more source

The Distribution of Ultrahigh-energy Cosmic Rays along the Supergalactic Plane Measured at the Pierre Auger Observatory [PDF]

open access: yesAstrophysical Journal
Ultrahigh-energy cosmic rays are known to be mainly of extragalactic origin, and their propagation is limited by energy losses, so their arrival directions are expected to correlate with the large-scale structure of the local Universe.
T. P. A. A. Halim   +365 more
semanticscholar   +1 more source

The number of muons measured in hybrid events detected by the Pierre Auger Observatory

open access: yesInternational Conference on Rebooting Computing, 2023
The number of muons produced in extensive air showers is a reliable proxy for the amount of hadron production that occurs during the shower development.
M. Stadelmaier   +379 more
semanticscholar   +1 more source

Differences between the Pierre Auger Observatory and Telescope Array Spectra: Systematic Effects or Indication of a Local Source of Ultra-high-energy Cosmic Rays? [PDF]

open access: yesAstrophysical Journal, 2022
The Pierre Auger Observatory (PAO) and Telescope Array (TA) collaborations report significant differences in the observed energy spectra of ultra-high-energy cosmic rays (UHECRs) above 30 EeV.
Pavlo Plotko   +3 more
semanticscholar   +1 more source

Data Processing at the Pierre Auger Observatory [PDF]

open access: yesJournal of Physics: Conference Series, 2015
Cosmic-ray particles with ultra-high energies (above $10^{18}$ eV) are studied through the properties of extensive air showers which they initiate in the atmosphere. The Pierre Auger Observatory detects these showers with unprecedented exposure and precision and the collected data are processed via dedicated software codes.
Vícha, J. (Jakub), Chudoba, J. (Jiří)
openaire   +3 more sources

Status of the program for microwave detection of cosmic rays at the Pierre Auger observatory

open access: yesEPJ Web of Conferences, 2013
Radiation in the microwave band from the passage of charged particles through air has been detected in the laboratory. This radiation could provide a novel technique for the detection of ultra-high energy cosmic rays over large areas, with 100% duty ...
Luis P. Facal San
doaj   +1 more source

Atmospheric Monitoring at a Cosmic Ray Observatory - a long-lasting endeavour

open access: yesEPJ Web of Conferences, 2019
The Pierre Auger Observatory for detecting ultrahigh energy cosmic rays has been founded in 1999. After a main planning and construction phase of about five years, the regular data taking started in 2004, but it took another four years until the full ...
Keilhauer Bianca
doaj   +1 more source

The Time Evolution of the Surface Detector of the Pierre Auger Observatory

open access: yesInternational Conference on Rebooting Computing, 2023
The surface detector array of the Pierre Auger Observatory, consisting of 1660 water Cherenkov tanks, has been in operation for nearly 20 years. During this long period of data acquisition, ageing effects in the detector response have been observed.
O. Zapparrata   +379 more
semanticscholar   +1 more source

Limits to Gauge Coupling in the Dark Sector Set by the Nonobservation of Instanton-Induced Decay of Super-Heavy Dark Matter in the Pierre Auger Observatory Data. [PDF]

open access: yesPhysical Review Letters, 2022
Instantons, which are nonperturbative solutions to Yang-Mills equations, provide a signal for the occurrence of quantum tunneling between distinct classes of vacua. They can give rise to decays of particles otherwise forbidden.
T. P. A. C. P. Abreu   +375 more
semanticscholar   +1 more source

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