activity
20202026
most citedAn extremely energetic cosmic ray observed by a surface detector array

78 citations · 234 across the 15 of their papers we have counts for

collaborators
Showing astro-ph.HEShow all

12 papers · 1 filter

astro-ph.HE2026

Global Spline Fit: A unified data-driven view of the cosmic-ray spectrum and mass composition from GeV to the highest energies

Anatoli Fedynitch, Kozo Fujisue, Hans Dembinski +1

The energy spectrum and mass composition of cosmic rays are measured by two complementary classes of instruments: space- and balloon-borne detectors that resolve individual element…

astro-ph.HE2025

Updated comparison of the UHECR energy spectra measured by the Pierre Auger Observatory and the Telescope Array

Douglas R. Bergman, Toshihiro Fujii, Kozo Fujisue +8

The Pierre Auger and Telescope Array joint Working Group on the UHECR energy spectrum was established in 2012 to analyze energy scale uncertainties in both experiments and to in ve…

astro-ph.HE2024★ 1 cited

Isotropy of cosmic rays beyond eV favors their heavy mass composition

Telescope Array Collaboration, R. U. Abbasi, Y. Abe +138

We report an estimation of the injected mass composition of ultra-high energy cosmic rays (UHECRs) at energies higher than 10 EeV. The composition is inferred from an energy-depend…

astro-ph.HE2024

Mass composition of ultra-high energy cosmic rays from distribution of their arrival directions with the Telescope Array

Telescope Array Collaboration, R. U. Abbasi, Y. Abe +138

We use a new method to estimate the injected mass composition of ultrahigh cosmic rays (UHECRs) at energies higher than 10 EeV. The method is based on comparison of the energy-depe…

astro-ph.HE2024★ 1 cited

Observation of Declination Dependence in the Cosmic Ray Energy Spectrum

The Telescope Array Collaboration, R. U. Abbasi, T. Abu-Zayyad +122

We report on an observation of the difference between northern and southern skies of the ultrahigh energy cosmic ray energy spectrum with a significance of . We use measu…

astro-ph.HE2023★ 78 cited

An extremely energetic cosmic ray observed by a surface detector array

Telescope Array Collaboration

Cosmic rays are energetic charged particles from extraterrestrial sources, with the highest energy events thought to come from extragalactic sources. Their arrival is infrequent, s…

astro-ph.HE2021★ 4 cited

Observation of Variations in Cosmic Ray Single Count Rates During Thunderstorms and Implications for Large-Scale Electric Field Changes

R. U. Abbasi, T. Abu-Zayyad, M. Allen +160

We present the first observation by the Telescope Array Surface Detector (TASD) of the effect of thunderstorms on the development of cosmic ray single count rate intensity over a 7…

astro-ph.HE2021★ 11 cited

Indications of a Cosmic Ray Source in the Perseus-Pisces Supercluster

Telescope Array Collaboration, R. U. Abbasi, T. Abu-Zayyad +155

The Telescope Array Collaboration has observed an excess of events with in the data which is centered at (RA, dec) = (, ). This is n…

astro-ph.HE2020★ 47 cited

The Cosmic-Ray Composition between 2 PeV and 2 EeV Observed with the TALE Detector in Monocular Mode

Telescope Array Collaboration

We report on a measurement of the cosmic ray composition by the Telescope Array Low-Energy Extension (TALE) air fluorescence detector (FD). By making use of the Cherenkov light sig…

astro-ph.HE2020★ 28 cited

Search for Large-scale Anisotropy on Arrival Directions of Ultra-high-energy Cosmic Rays Observed with the Telescope Array Experiment

Telescope Array Collaboration, R. U. Abbasi, M. Abe +141

Motivated by the detection of a significant dipole structure in the arrival directions of ultrahigh-energy cosmic rays above 8 EeV reported by the Pierre Auger Observatory (Auger),…

astro-ph.HE2020★ 4 cited

Evidence for a Supergalactic Structure of Magnetic Deflection Multiplets of Ultra-High Energy Cosmic Rays

Telescope Array Collaboration, R. U. Abbasi, M. Abe +140

Evidence for a large-scale supergalactic cosmic ray multiplet (arrival directions correlated with energy) structure is reported for ultra-high energy cosmic ray (UHECR) energies ab…

astro-ph.HE2020★ 21 cited

Measurement of the Proton-Air Cross Section with Telescope Array's Black Rock Mesa and Long Ridge Fluorescence Detectors, and Surface Array in Hybrid Mode

R. U. Abbasi, M. Abe, T. Abu-Zayyad +140

Ultra high energy cosmic rays provide the highest known energy source in the universe to measure proton cross sections. Though conditions for collecting such data are less controll…