activity
19942022
most citedDetection of a Cosmic Ray with Measured Energy Well Beyond the Expected Spectral Cutoff due to Cosmic Microwave Radiation

535 citations · 4.2k across the 48 of their papers we have counts for

collaborators

48 papers

physics.ao-ph2022★ 21 cited

First High-speed Video Camera Observations of a Lightning Flash Associated with a Downward Terrestrial Gamma-ray Flash

R. U. Abbasi, M. M. F. Saba, J. W. Belz +146

In this paper, we present the first high-speed video observation of a cloud-to-ground lightning flash and its associated downward-directed Terrestrial Gamma-ray Flash (TGF). The op…

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…

physics.ao-ph2020★ 64 cited

Observations of the Origin of Downward Terrestrial Gamma-Ray Flashes

J. W. Belz, P. R. Krehbiel, J. Remington +137

In this paper we report the first close, high-resolution observations of downward-directed terrestrial gamma-ray flashes (TGFs) detected by the large-area Telescope Array cosmic ra…

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…