activity
20162021
most citedDepth of Ultra High Energy Cosmic Ray Induced Air Shower Maxima Measured by the Telescope Array Black Rock and Long Ridge FADC Fluorescence Detectors and Surface Array in Hybrid Mode

148 citations · 751 across the 18 of their papers we have counts for

collaborators
Showing astro-ph.HEShow all

17 papers · 1 filter

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…

astro-ph.HE2019★ 9 cited

Search for Ultra-High-Energy Neutrinos with the Telescope Array Surface Detector

R. U. Abbasi, M. Abe, T. Abu-Zayyad +133

We present an upper limit on the flux of ultra-high-energy down-going neutrinos for $E > 10^{18}\ \mbox{eV}$ derived with the nine years of data collected by the Telescope Array su…

astro-ph.HE2018★ 68 cited

Constraints on the diffuse photon flux with energies above eV using the surface detector of the Telescope Array experiment

Telescope Array Collaboration, R. U. Abbasi, M. Abe +139

We present the results of the search for ultra-high-energy photons with nine years of data from the Telescope Array surface detector. A multivariate classifier is built upon 16 rec…

astro-ph.HE2018★ 53 cited

Testing a reported correlation between arrival directions of ultrahigh-energy cosmic rays and a flux pattern from nearby starburst galaxies using Telescope Array data

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

The Pierre Auger Collaboration (Auger) recently reported a correlation between the arrival directions of cosmic rays with energies above 39 EeV and the flux pattern of 23 nearby st…

astro-ph.HE2018★ 59 cited

Mass composition of ultra-high-energy cosmic rays with the Telescope Array Surface Detector Data

Telescope Array Collaboration, R. U. Abbasi, M. Abe +139

The results on ultra-high-energy cosmic rays (UHECR) mass composition obtained with the Telescope Array surface detector are presented. The analysis employs the boosted decision tr…

astro-ph.HE2018★ 69 cited

Study of muons from ultra-high energy cosmic ray air showers measured with the Telescope Array experiment

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

One of the uncertainties in interpretation of ultra-high energy cosmic ray (UHECR) data comes from the hadronic interaction models used for air shower Monte Carlo (MC) simulations.…

astro-ph.HE2018★ 123 cited

The Cosmic-Ray Energy Spectrum between 2 PeV and 2 EeV Observed with the TALE detector in monocular mode

R. U. Abbasi, M. Abe, T. Abu-Zayyad +137

We report on a measurement of the cosmic ray energy spectrum by the Telescope Array Low-Energy Extension (TALE) air fluorescence detector. The TALE air fluorescence detector is als…

astro-ph.HE2018★ 32 cited

Evidence of Intermediate-Scale Energy Spectrum Anisotropy of Cosmic Rays E10 eV with the Telescope Array Surface Detector

R. U. Abbasi, M. Abe, T. Abu-Zayyad +136

An intermediate-scale energy spectrum anisotropy has been found in the arrival directions of ultra-high energy cosmic rays of energies above eV in the northern hemisphe…

astro-ph.HE2018★ 148 cited

Depth of Ultra High Energy Cosmic Ray Induced Air Shower Maxima Measured by the Telescope Array Black Rock and Long Ridge FADC Fluorescence Detectors and Surface Array in Hybrid Mode

Telescope Array Collaboration, R. U. Abbasi, M. Abe +135

The Telescope Array observatory utilizes fluorescence detectors and surface detectors to observe air showers produced by ultra high energy cosmic rays in the Earth's atmosphere. Co…

astro-ph.HE2018★ 16 cited

Evidence for Declination Dependence of the Ultrahigh Energy Cosmic Ray Spectrum in the Northern Hemisphere

R. U. Abbasi, T. Abu-Zayyad, M. Allen +154

Telescope Array (TA) is the largest experiment in the Northern Hemisphere studying ultrahigh energy cosmic rays. TA measurements of the cosmic ray spectrum using the surface detect…

astro-ph.HE2017★ 3 cited

Search for Anisotropy in the Ultra High Energy Cosmic Ray Spectrum using the Telescope Array Surface Detector

R. U. Abbasi, M. Abe, T. Abu-Zayyad +127

The Telescope Array (TA) experiment is located in the western desert of Utah, USA, and observes ultra high energy cosmic rays (UHECRs) in the Northern hemisphere. At the highest en…

astro-ph.HE2016★ 38 cited

Search for EeV Protons of Galactic Origin

R. U. Abbasi, M. Abe, T. Abu-Zayyad +126

Cosmic rays in the energy range - eV are thought to have a light, probably protonic, composition. To study their origin one can search for anisotropy in the…