ATLAS and ultra high energy cosmic ray physics
EPJ Web of Conferences, 2017 After a brief introduction to extended air shower cosmic ray physics the current and future deployment of forward detectors at ATLAS is discussed along with the various aspects of the current and future ATLAS programs to explore hadronic physics.
Pinfold James
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Search for the large-scale cosmic-ray anisotropies using the TA and TALE surface detector arrays [PDF]
EPJ Web of Conferences, 2023 Origins of ultra-high-energy cosmic rays (UHECRs) are still largely unknown. In particular, the “2nd knee” around 1017 eV could be related to a transition of origins from the galactic to extra-galactic sources.
Kimura Yusuke +3 more
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Neutrinos and Ultra-high-energy Cosmic-ray Nuclei from Blazars [PDF]
, 2017 We discuss the production of ultra-high-energy cosmic-ray (UHECR) nuclei and neutrinos from blazars. We compute the nuclear cascade in the jet for both BL Lac objects and flat-spectrum radio quasars (FSRQs), and in the ambient radiation zones for FSRQs ...
X. Rodrigues +4 more
semanticscholar +1 more source
Search for ultra high energy cosmic ray sources
EPJ Web of Conferences, 2017 Earlier we suggested a new method to search for sources and anisotropy of the arrival directions of ultra high energy particles. Here using this method we analyzed the data of the Yakutsk EAS array and found that particle fluxes with energies E < 4.1019 ...
Mikhailov A.A., Kolosov V.A.
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Air shower observation by a simple structured Fresnel lens telescope with a single pixel for the next generation of ultra-high-energy cosmic ray observatories [PDF]
Progress of Theoretical and Experimental Physics, 2019 Improved statistics and mass-composition-sensitive observation are required to clarify the origin of ultra-high energy cosmic rays (UHECRs). Inevitably in the future, the UHECR observatories will have to be expanded due to the small flux; however, the ...
Y. Tameda +11 more
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Constraints on the Hosts of UHECR Accelerators
The 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
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An Indication of Anisotropy in Arrival Directions of Ultra-high-energy Cosmic Rays through Comparison to the Flux Pattern of Extragalactic Gamma-Ray Sources [PDF]
, 2018 A new analysis of the data set from the Pierre Auger Observatory provides evidence for anisotropy in the arrival directions of ultra-high-energy cosmic rays on an intermediate angular scale, which is indicative of excess arrivals from strong, nearby ...
T. P. A. C. A. Aab +391 more
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Ultra-High-Energy Gamma-Ray Astronomy [PDF]
Annual Review of Nuclear and Particle Science, 2023 Ultra-high-energy (UHE, >0.1 PeV) γ-ray astronomy is rapidly evolving into an expanding branch of γ-ray astronomy with the surprising discovery of 12 PeVatrons and the detection of a handful of photons above 1 PeV. Nearly all known celestial object types
Z. Cao +3 more
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Active Galactic Nuclei as Potential Sources of Ultra-High Energy Cosmic Rays [PDF]
Universe, 2022 Active Galactic Nuclei (AGNs) and their relativistic jets belong to the most promising class of ultra-high-energy cosmic ray (UHECR) accelerators. This compact review summarises basic experimental findings by recent instruments, and discusses possible ...
F. Rieger
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Effects of the Galactic Magnetic Field on the UHECR Correlation Studies with Starburst Galaxies
The 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
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