Search Results - "Stroman, T A"
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Gamma Ray Showers Observed at Ground Level in Coincidence With Downward Lightning Leaders
Published in Journal of geophysical research. Atmospheres (16-07-2018)“…Bursts of gamma ray showers have been observed in coincidence with downward propagating negative leaders in lightning flashes by the Telescope Array Surface…”
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The Cosmic Ray Energy Spectrum between 2 PeV and 2 EeV Observed with the TALE Detector in Monocular Mode
Published in The Astrophysical journal (20-09-2018)“…We report on a measurement of the cosmic ray energy spectrum by the Telescope Array Low-Energy Extension (TALE) air fluorescence detector (FD). The TALE air FD…”
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The Cosmic-Ray Composition between 2 PeV and 2 EeV Observed with the TALE Detector in Monocular Mode
Published in The Astrophysical journal (01-03-2021)“…Abstract We report on a measurement of the cosmic-ray composition by the Telescope Array Low-energy Extension (TALE) air fluorescence detector (FD). By making…”
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Search for point sources of ultra-high-energy photons with the Telescope Array surface detector
Published in Monthly notices of the Royal Astronomical Society (01-03-2020)“…ABSTRACT The surface detector (SD) of the Telescope Array (TA) experiment allows us to detect indirectly photons with energies of the order of 1018 eV and…”
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Search for Ultra-High-Energy Neutrinos with the Telescope Array Surface Detector
Published in Journal of experimental and theoretical physics (01-08-2020)“…We present an upper limit on the flux of ultra-high-energy down-going neutrinos for E > 10 18 eV derived with the nine years of data collected by the Telescope…”
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Evidence of Intermediate-scale Energy Spectrum Anisotropy of Cosmic Rays E ≥ 1019.2 eV with the Telescope Array Surface Detector
Published in The Astrophysical journal (01-08-2018)“…Evidence for an intermediate-scale energy spectrum anisotropy has been found in the arrival directions of ultra-high energy cosmic rays for energies greater…”
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First High-speed Video Camera Observations of a Lightning Flash Associated with a Downward Terrestrial Gamma-ray Flash
Published 10-08-2023“…Geophysical Research Letters, 50, e2023GL102958 (2023) In this paper, we present the first high-speed video observation of a cloud-to-ground lightning flash…”
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The surface detector array of the Telescope Array experiment
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-10-2012)“…The Telescope Array (TA) experiment, located in the western desert of Utah, USA, is designed for the observation of extensive air showers from extremely high…”
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Surface detectors of the TAx4 experiment
Published 01-03-2021“…Telescope Array (TA) is the largest ultrahigh energy cosmic-ray (UHECR) observatory in the Northern Hemisphere. It explores the origin of UHECRs by measuring…”
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Observations of the Origin of Downward Terrestrial Gamma-Ray Flashes
Published 12-10-2020“…In this paper we report the first close, high-resolution observations of downward-directed terrestrial gamma-ray flashes (TGFs) detected by the large-area…”
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Search for Large-scale Anisotropy on Arrival Directions of Ultra-high-energy Cosmic Rays Observed with the Telescope Array Experiment
Published 27-07-2020“…The Astrophysical Journal Letters 898, L28 (2020) Motivated by the detection of a significant dipole structure in the arrival directions of ultrahigh-energy…”
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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
Published 09-06-2020“…Phys. Rev. D 102, 062004 (2020) Ultra high energy cosmic rays provide the highest known energy source in the universe to measure proton cross sections. Though…”
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Search for Ultra-High-Energy Neutrinos with the Telescope Array Surface Detector
Published 13-05-2020“…JETP Vol. 158 (8(2)) (2020) 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…”
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Isotropy of Cosmic Rays beyond 10^{20} eV Favors Their Heavy Mass Composition
Published in Physical review letters (26-07-2024)“…We report an estimation of the injected mass composition of ultrahigh energy cosmic rays (UHECRs) at energies higher than 10 EeV. The composition is inferred…”
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The energy spectrum of cosmic rays measured by the Telescope Array using 10 years of fluorescence detector data
Published in Astroparticle physics (01-09-2023)“…The Telescope Array (TA) Cosmic Ray Observatory is the largest cosmic ray detector in the northern hemisphere. TA was built to study ultra-high-energy cosmic…”
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Search for point sources of ultra-high energy photons with the Telescope Array surface detector
Published 09-03-2020“…MNRAS 492 (2020), 3984 The surface detector (SD) of the Telescope Array (TA) experiment allows one to indirectly detect photons with energies of order…”
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Surface detectors of the TAx4 experiment
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-12-2021)“…Telescope Array (TA) is the largest ultrahigh energy cosmic-ray (UHECR) observatory in the Northern Hemisphere. It explores the origin of UHECRs by measuring…”
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The bursts of high energy events observed by the telescope array surface detector
Published in Physics letters. A (28-08-2017)“…•The burst of air shower like events related lightning discharge.•The spatial distribution of high energy radiation from lightning was observed.•The shower…”
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Mass composition of ultra-high-energy cosmic rays with the Telescope Array Surface Detector Data
Published 24-01-2019“…Phys. Rev. D 99, 022002 (2019) The results on ultra-high-energy cosmic rays (UHECR) mass composition obtained with the Telescope Array surface detector are…”
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