Results 11 to 20 of about 22,727 (221)

Cosmic-Ray Database Update: Ultra-High Energy, Ultra-Heavy, and Antinuclei Cosmic-Ray Data (CRDB v4.0)

open access: yesUniverse, 2020
We present an update on CRDB, the cosmic-ray database for charged species. CRDB is based on MySQL, queried and sorted by jquery and table-sorter libraries, and displayed via PHP web pages through the AJAX protocol. We review the modifications made on the
David Maurin   +4 more
doaj   +2 more sources

The ultra-high-energy cosmic-ray sky above 32 EeV viewed from the Pierre Auger Observatory [PDF]

open access: yes, 2022
The region of the toe in the cosmic-ray spectrum, located at about 45 EeV by the Pierre Auger Collaboration, is of primary interest in the search for the origin of ultra-high energy cosmic rays (UHECRs). The suppression of the flux with increasing energy
del Rio M.   +372 more
core   +1 more source

Constraints on the Hosts of UHECR Accelerators

open access: yesThe Astrophysical Journal Letters, 2023
Interactions of ultra-high-energy cosmic rays (UHECRs) in the surroundings of their accelerators can naturally explain the observed spectrum and composition of UHECRs, including the abundance of protons below the ankle.
Marco Stein Muzio, Glennys R. Farrar
doaj   +1 more source

The anisotropy of the ultra-high energy cosmic rays [PDF]

open access: yesAstroparticle Physics, 2002
38 pages, 8 figures.
Evans, W, Ferrer, F, Sarkar, S
openaire   +3 more sources

Measurement of Ultra-High Energy Cosmic Rays with CHICOS [PDF]

open access: yes, 2009
The California HIgh school Cosmic ray ObServatory (CHICOS) is a ground-based scintillator array designed to measure the extended air showers of ultra-high energy cosmic rays. The goal of the project is to gain insight into the origin of ultra-high energy
Brobeck, Elina
core   +1 more source

Effects of the Galactic Magnetic Field on the UHECR Correlation Studies with Starburst Galaxies

open access: yesThe Astrophysical Journal, 2023
We estimate the biases caused by the coherent deflection of cosmic rays due to the Galactic magnetic field (GMF) in maximum likelihood analyses for searches of ultrahigh-energy cosmic-ray sources in the literature. We simulate mock event data sets with a
Ryo Higuchi   +4 more
doaj   +1 more source

Ultra high energy cosmic rays [PDF]

open access: yesSurveys in High Energy Physics, 1999
The current status of Ultra High Energy Cosmic Rays (UHECR) is reviewed, with emphasis given to theoretical interpretation of the observed events. The galactic and extragalactic origin, in case of astrophysical sources of UHE particles, have the problems either with acceleration to the observed energies or with the fluxes and spectra.
openaire   +4 more sources

Ultra High Energy Cosmic Rays an overview

open access: yesJournal of Physics: Conference Series, 2023
Abstract We review the main experimental evidences on ultra high energy cosmic rays and their implications in the physics of these extremely energetic particles, also in connection with dark matter and cosmology. We discuss the basis of theoretical models aiming at explaining observations, highlighting the most relevant open questions in
openaire   +2 more sources

High energy cosmic ray interactions and UHECR composition problem [PDF]

open access: yes, 2019
The differences between contemporary Monte Carlo generators of high energy hadronic interactions are discussed and their impact on the interpretation of experimental data on ultra-high energy cosmic rays (UHECRs) is studied.
Ostapchenko, Sergey   +2 more
core   +1 more source

Simulation of the Isotropic Ultra-High Energy Photon Flux in the Solar Magnetic Field

open access: yesUniverse, 2022
Both the lack of observation of ultra-high energy (UHE) photons and the limitations of the state-of-the-art methodology being applied for their identification motivate studies on alternative approaches to the relevant simulations and the related ...
Bożena Poncyljusz   +19 more
doaj   +1 more source

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