Results 31 to 40 of about 19,622 (273)

Latest results from the searches for ultra-high-energy photons and neutrinos at the Pierre Auger Observatory

open access: yesInternational Conference on Rebooting Computing, 2023
The Pierre Auger Observatory is the largest air-shower experiment in the world, offering an unprecedented exposure not only to ultra-high-energy (UHE, 𝐸 > 10 17 eV) cosmic rays, but also to UHE neutral particles, specifically photons and neutrinos. Since
M. Niechciol   +379 more
semanticscholar   +1 more source

A brief history of image sensors in the optical

open access: yesAstronomische Nachrichten, Volume 344, Issue 8-9, October-November 2023., 2023
Image sensors, most notably the Charge Coupled Device (CCD), have revolutionized observational astronomy as perhaps the most important innovation after photography. Since the 50th anniversary of the invention of the CCD has passed in 2019, it is time to review the development of detectors for the visible wavelength range, starting with the discovery of
Martin M. Roth
wiley   +1 more source

Probing hadronic interactions with measurements from the Pierre Auger Observatory

open access: yesSciPost Physics Proceedings, 2022
The Pierre Auger Observatory is the largest facility in the world to study ultra-high-energy cosmic rays. It has a hybrid detection technique that combines the observation of the longitudinal development of extensive air showers and the measurement of
B. Andrada
doaj   +1 more source

Update on the searches for anisotropies in UHECR arrival directions with the Pierre Auger Observatory and the Telescope Array

open access: yesInternational Conference on Rebooting Computing, 2023
The origin of ultra-high-energy cosmic rays (UHECRs), particles from outer space with energies 𝐸 ≥ 1 EeV, is still unknown, though the near-isotropy of their arrival direction distribution excludes a dominant Galactic contribution, and interactions with ...
L. Caccianiga   +384 more
semanticscholar   +1 more source

Big Science Collaborations; Lessons for Global Governance and Leadership

open access: yesGlobal Policy, Volume 12, Issue 1, Page 66-80, February 2021., 2021
Abstract Big Science communities have been remarkably effective in evolving complex processes and mechanisms to enable international collaborations. Major powers such as the People's Republic of China, Russia and the USA, who are fierce rivals in other domains, form lasting alliances.
Mark Robinson
wiley   +1 more source

An update on the arrival direction studies made with data from the Pierre Auger Observatory

open access: yesInternational Conference on Rebooting Computing, 2023
The search for anisotropies in the arrival directions of ultra-high-energy cosmic rays plays a key role in the efforts to understand their origin.
G. Golup   +379 more
semanticscholar   +1 more source

Particle Physics with the Pierre Auger Observatory

open access: yesSciPost Physics Proceedings, 2022
The Pierre Auger Observatory is the largest extensive air shower detector. Based on a hybrid system, this experiment measures the longitudinal shower development and the particles at the ground. This detection system allows the extraction of the p-air
Matias Perlin
doaj   +1 more source

Measurement of UHECR energy spectrum with the Pierre Auger Observatory and the Telescope Array

open access: yesInternational Conference on Rebooting Computing, 2023
The measurement of the energy spectrum of ultra-high-energy cosmic rays (UHECRs) is of crucial importance to clarify their origin, acceleration mechanisms, and propagation processes in inter-Galactic and Galactic space.
Y. Tsunesada
semanticscholar   +1 more source

Depth of Maximum of Air-Shower Profiles above $10^{17.8}$eV Measured with the Fluorescence Detector of the Pierre Auger Observatory and Mass Composition Implications

open access: yesInternational Conference on Rebooting Computing, 2023
After seventeen years of operation, the first phase of measurements at the Pierre Auger Observatory finished and the process of upgrading it began. In this work, we present distributions of the depth of air-shower maximum, 𝑋 max , using profiles measured
T. Fitoussi   +373 more
semanticscholar   +1 more source

Multi-messenger Astrophysics at Ultra-High Energy with the Pierre Auger Observatory [PDF]

open access: yesEPJ Web of Conferences, 2019
The study of correlations between observations of fundamentally different nature from extreme cosmic sources promises extraordinary physical insights into the Universe. With the Pierre Auger Observatory, we can significantly contribute to multi-messenger
Alvarez-Muñiz Jaime
doaj   +1 more source

Home - About - Disclaimer - Privacy