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Ultra High Energy Cosmic Ray Source Models: Successes, Challenges and General Predictions [PDF]

open access: yesEPJ Web of Conferences, 2023
Understanding the acceleration of Ultra High Energy Cosmic Rays is one of the great challenges of contemporary astrophysics. In this short review, we summarize the general observational constraints on their composition, spectrum and isotropy which ...
Globus Noémie, Blandford Roger
doaj   +3 more sources

Ultra-high energy cosmic neutrinos from gamma-ray bursts [PDF]

open access: yesFundamental Research, 2022
Based on the recent association of IceCube TeV and PeV neutrino events with gamma-ray bursts (GRBs) by considering the Lorentz violation of neutrinos, we provide a new estimate on the GRB neutrino flux with a more significant result compared to the ...
Yanqi Huang, Bo-Qiang Ma
doaj   +2 more sources

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

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

Joint analysis of the energy spectrum of ultra-high-energy cosmic rays as measured at the Pierre Auger Observatory and the Telescope Array [PDF]

open access: hybridInternational Conference on Rebooting Computing, 2021
Themeasurement of the energy spectrum of ultra-high-energy cosmic rays (UHECRs) is of crucial importance to clarify their origin and acceleration mechanisms.
Y. Tsunesada   +99 more
openalex   +2 more sources

Observation of an ultra-high-energy cosmic neutrino with KM3NeT. [PDF]

open access: yesNature
The detection of cosmic neutrinos with energies above a teraelectronvolt (TeV) offers a unique exploration into astrophysical phenomena1, 2–3. Electrically neutral and interacting only by means of the weak interaction, neutrinos are not deflected by ...
KM3NeT Collaboration.
europepmc   +2 more sources

Observation of ultra-high energy cosmic rays with the Telescope Array experiment [PDF]

open access: diamondEPJ Web of Conferences, 2018
The origin of ultra-high energy cosmic rays (UHECRs) has been a longstanding mystery. The Telescope Array (TA) is the largest experiment in the northern hemisphere observing UHECR in Utah, USA. It aims to reveal the origin of UHECR by studying the energy
Takeishi Ryuji
doaj   +2 more sources

Examination of Xmax anisotropy for the next generation Ultra-high energy cosmic rays observations [PDF]

open access: yesEPJ Web of Conferences, 2023
The estimation of mass composition ultra-high energy cosmic rays is essential to understand their origin and generation mechanism. Recent experiments are expected to discover anisotropy of mass composition in ultra-high energy cosmic rays.
Saito Ryosuke   +2 more
doaj   +1 more source

Diffuse Flux of Ultra-high-energy Photons from Cosmic-Ray Interactions in the Disk of the Galaxy and Implications for the Search for Decaying Super-heavy Dark Matter [PDF]

open access: yesAstrophysical Journal, 2022
An estimate of the expected photon flux above 1017 eV from the interactions of ultra-high-energy cosmic rays with the matter in the Galactic disk is presented.
Corinne B'erat   +5 more
semanticscholar   +1 more source

Constraining models for the origin of ultra-high-energy cosmic rays with a novel combined analysis of arrival directions, spectrum, and composition data measured at the Pierre Auger Observatory [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2023
The combined fit of the measured energy spectrum and shower maximum depth distributions of ultra-high-energy cosmic rays is known to constrain the parameters of astrophysical models with homogeneous source distributions.
T. P. A. A. Halim   +372 more
semanticscholar   +1 more source

Detecting ultra-high-energy cosmic ray anisotropies through harmonic cross-correlations [PDF]

open access: yesAstronomy & Astrophysics, 2020
We propose an observable for ultra-high-energy cosmic ray (UHECR) physics: the harmonic-space cross-correlation power spectrum between the arrival directions of UHECRs and the large-scale cosmic structure mapped by galaxies.
F. Urban, S. Camera, D. Alonso
semanticscholar   +1 more source

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