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Naslov:Search for anisotropy of ultrahigh energy cosmic rays with the Telescope Array experiment
Avtorji:ID Abu-Zayyad, T. (Avtor)
ID Lundquist, Jon Paul, UNG (Avtor), et al.
Datoteke: Gradivo nima datotek, ki so prostodostopne za javnost. Gradivo je morda fizično dosegljivo v knjižnici fakultete, zalogo lahko preverite v COBISS-u. Povezava se odpre v novem oknu
Jezik:Angleški jezik
Vrsta gradiva:Delo ni kategorizirano
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:UNG - Univerza v Novi Gorici
Opis:We study the anisotropy of Ultra-High Energy Cosmic Ray (UHECR) events collected by the Telescope Array (TA) detector in the first 40 months of operation. Following earlier studies, we examine event sets with energy thresholds of 10 EeV, 40 EeV, and 57 EeV. We find that the distributions of the events in right ascension and declination are compatible with an isotropic distribution in all three sets. We then compare with previously reported clustering of the UHECR events at small angular scales. No significant clustering is found in the TA data. We then check the events with E > 57 EeV for correlations with nearby active galactic nuclei. No significant correlation is found. Finally, we examine all three sets for correlations with the large-scale structure (LSS) of the universe. We find that the two higher-energy sets are compatible with both an isotropic distribution and the hypothesis that UHECR sources follow the matter distribution of the universe (the LSS hypothesis), while the event set with E > 10 EeV is compatible with isotropy and is not compatible with the LSS hypothesis at 95% CL unless large deflection angles are also assumed. We show that accounting for UHECR deflections in a realistic model of the Galactic magnetic field can make this set compatible with the LSS hypothesis.
Ključne besede:acceleration of particles, astroparticle physics, cosmic rays, magnetic fields, methods: statistical, relativistic processes
Verzija publikacije:Objavljena publikacija
Leto izida:2012
Št. strani:11
Številčenje:1, 757
PID:20.500.12556/RUNG-5329-894b26d0-1d4a-567d-730f-bf6ee04abf54 Novo okno
COBISS.SI-ID:15998979 Novo okno
DOI:10.1088/0004-637X/757/1/26 Novo okno
NUK URN:URN:SI:UNG:REP:BZQSD8AT
Datum objave v RUNG:19.05.2020
Število ogledov:4127
Število prenosov:0
Metapodatki:XML DC-XML DC-RDF
:
ABU-ZAYYAD, T. in LUNDQUIST, Jon Paul, 2012, Search for anisotropy of ultrahigh energy cosmic rays with the Telescope Array experiment. The Astrophysical Journal [na spletu]. 2012. Vol. 1, no. 757. [Dostopano 7 april 2025]. DOI 10.1088/0004-637X/757/1/26. Pridobljeno s: https://repozitorij.ung.si/IzpisGradiva.php?lang=slv&id=5329
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Gradivo je del revije

Naslov:The Astrophysical Journal
Leto izida:2012

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.
Začetek licenciranja:19.05.2020

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