| Naslov: | Performance of the 433 m surface array of the Pierre Auger Observatory |
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| Avtorji: | ID Silli, G. (Avtor)
ID Filipčič, Andrej (Avtor)
ID Lundquist, Jon Paul (Avtor)
ID Stanič, Samo (Avtor)
ID Vorobiov, Serguei (Avtor)
ID Zavrtanik, Danilo (Avtor)
ID Zavrtanik, Marko (Avtor)
ID Zehrer, Lukas (Avtor), et al. |
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| Datoteke: |  ICRC2021_224.pdf (893,20 KB)
MD5: 6D2A76421C0F3EAD516236A5895E29FC
 https://pos.sissa.it/395/224/
https://pos.sissa.it/395/224/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: | The Pierre Auger Observatory, located in western Argentina, is the world's largest cosmic-ray observatory. While it was originally built to study the cosmic-ray flux above 10^18.5 eV, several enhancements have reduced this energy threshold. One such enhancement is a surface array composed of a triangular grid of 19 water-Cherenkov detectors separated by 433 m (SD-433) to explore the energies down to about 10^16 eV. We are developing two research lines employing the SD-433. Firstly, we will measure the energy spectrum in a region where previous experiments have shown evidence of the second knee. Secondly, we will search for ultra-high energy photons to study PeV cosmic-ray sources residing in the Galactic center. In this work, we introduce the SD-433 and we show that it is fully efficient above 5×10^16 eV for hadronic primaries with θ<45∘. Using seven years of data, we present the parametrization of the lateral distribution function of measured signals. Finally, we show that an angular resolution of 1.8∘ (0.5∘) can be attained at the lowest (highest) primary energies. Our study lays the goundmark for measurements in the energy range above 10^16 eV by utilizing the SD-433 and thus expanding the scientific output of the Auger surface detector. |
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| Ključne besede: | Pierre Auger Observatory, SD-433, indirect detection, surface detection, low energy extension, ultra-high energy, cosmic rays, energy spectrum, photons, multimessenger |
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| Status publikacije: | Objavljeno |
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| Leto izida: | 2022 |
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| PID: | 20.500.12556/RUNG-8542  |
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| COBISS.SI-ID: | 167054339 |
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| DOI: | 10.22323/1.395.0224 |
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| NUK URN: | URN:SI:UNG:REP:ML24JVOR |
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| Datum objave v RUNG: | 04.10.2023 |
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| Število ogledov: | 727 |
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| Število prenosov: | 5 |
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| Metapodatki: |     |
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