| Naslov: | Telescope Array 10-Year Monocular Spectrum Measurement |
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| Avtorji: | ID Bergman, D. (Avtor)
ID Lundquist, Jon Paul (Avtor), et al. |
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| Datoteke: |  ICRC2021_339.pdf (1,91 MB)
MD5: 9A03139D7B9E69AB33AADE21AA69C695
 https://pos.sissa.it/395/339/
https://pos.sissa.it/395/339/pdf
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| Jezik: | Angleški jezik |
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| Vrsta gradiva: | Delo ni kategorizirano |
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| Tipologija: | 1.08 - Objavljeni znanstveni prispevek na konferenci |
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| Organizacija: | UNG - Univerza v Novi Gorici
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| Opis: | Telescope Array (TA) is the largest cosmic ray detector in the northern hemisphere. We present a measurement of the cosmic ray energy spectrum for energies above 10^17.5 eV using fluorescence telescopes in monocular mode. A novel weather classification scheme using machine learning was used to select data parts with good weather to ensure the quality of the fluorescence data. The data from the Black Rock Mesa (BR) and Long Ridge (LR) fluorescence telescope stations were analysed separately in monocular mode, with the calculated fluxes combined into a single spectrum. The 10-year monocular combined cosmic ray energy spectrum is in excellent agreement with previous measurements from the northern hemisphere. We present fits of the combined spectrum to a series of broken power law models. A thrice-broken power law is observed to be the best fit considering the Poisson deviance per degrees of freedom. The three breaks suggest an additional feature of the spectrum between the previously observed Ankle at 10^18.7 eV and the GZK suppression at 10^19.8 eV. |
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| Ključne besede: | Telescope Array, indirect detection, fluorescence detection, ultra-high energy, cosmic rays, energy spectrum, composition, machine learning, weather classification |
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| Status publikacije: | Objavljeno |
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| Leto izida: | 2022 |
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| PID: | 20.500.12556/RUNG-8504  |
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| COBISS.SI-ID: | 166662147 |
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| DOI: | 10.22323/1.395.0339 |
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| NUK URN: | URN:SI:UNG:REP:HYOWHGPP |
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| Datum objave v RUNG: | 02.10.2023 |
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| Število ogledov: | 640 |
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| Število prenosov: | 5 |
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| Metapodatki: |     |
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