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Naslov:The ultra-high-energy cosmic-ray sky above 32 EeV viewed from the Pierre Auger Observatory
Avtorji:ID Biteau, J. (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.
Datoteke:.pdf ICRC2021_307.pdf (2,15 MB)
MD5: 92F85781C90116E0D2920972C25F954B
 
URL https://pos.sissa.it/395/307/
 
URL https://pos.sissa.it/395/307/pdf
 
Jezik:Angleški jezik
Vrsta gradiva:Delo ni kategorizirano
Tipologija:1.08 - Objavljeni znanstveni prispevek na konferenci
Organizacija:UNG - Univerza v Novi Gorici
Opis:The region of the toe in the cosmic-ray spectrum, located at about 45 EeV by the Pierre Auger Collaboration, is of primary interest in the search for the origin of ultra-high energy cosmic rays (UHECRs). The suppression of the flux with increasing energy can be explained by the interaction of UHECRs with intergalactic photons, resulting in a shrinking of the observable universe, and/or by cut-offs in acceleration potential at the astrophysical sources, yielding a high-rigidity sample of single (or few) UHECR species around the toe. The predominance of foreground sources combined with reduced deflections could thus offer a path towards localizing ultra-high energy accelerators, through the study of UHECR arrival directions. In this contribution, we present the results of blind and astrophysically-motivated searches for anisotropies with data collected above 32 EeV during the first phase of the Pierre Auger Observatory, i.e. prior to the AugerPrime upgrade, for an exposure of over 120,000 km^2 yr sr. We have conducted model-independent searches for overdensities at small and intermediate angular scales, correlation studies with several astrophysical structures, and cross-correlation analyses with catalogs of candidate extragalactic sources. These analyses provide the most important evidence to date for anisotropy in UHECR arrival directions around the toe as measured from a single observatory.
Ključne besede:Pierre Auger Observatory, indirect detection, surface detection, ground array, ultra-high energy, cosmic rays, anisotropy, overdensities, hotspot, source correlation, cross-correlation
Status publikacije:Objavljeno
Leto izida:2022
PID:20.500.12556/RUNG-8522 Novo okno
COBISS.SI-ID:166978307 Novo okno
DOI:10.22323/1.395.0307 Novo okno
NUK URN:URN:SI:UNG:REP:YUWWQ6EK
Datum objave v RUNG:04.10.2023
Število ogledov:2100
Število prenosov:7
Metapodatki:XML DC-XML DC-RDF
:
BITEAU, J., FILIPČIČ, Andrej, LUNDQUIST, Jon Paul, STANIČ, Samo, VOROBIOV, Serguei, ZAVRTANIK, Danilo, ZAVRTANIK, Marko in ZEHRER, Lukas, 2022, The ultra-high-energy cosmic-ray sky above 32 EeV viewed from the Pierre Auger Observatory. V : 37th International Cosmic Ray Conference [na spletu]. Objavljeni znanstveni prispevek na konferenci. Trieste, Italy. 2022. [Dostopano 25 april 2025]. Pridobljeno s: https://repozitorij.ung.si/IzpisGradiva.php?lang=slv&id=8522
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Gradivo je del monografije

Naslov:37th International Cosmic Ray Conference : ICRC2023
Kraj izida:Trieste, Italy
Založnik:Proceedings of Science
Leto izida:2022

Gradivo je financirano iz projekta

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:P1-0031
Naslov:Večglasniška astrofizika

Licence

Licenca:CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
Opis:Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.

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