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Medium-scale anisotropies in the arrival directions of UHECRs observed by the Pierre Auger Observatory
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SYSNO ASEP 0569012 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve SCOPUS Title Medium-scale anisotropies in the arrival directions of UHECRs observed by the Pierre Auger Observatory Author(s) Abreu, A. (PT)
Aglietta, M. (IT)
Albury, J.M. (AU)
Bakalová, Alena (FZU-D) ORCID
Blažek, Jiří (FZU-D) ORCID, RID
Boháčová, Martina (FZU-D) RID, ORCID
Chudoba, Jiří (FZU-D) RID, ORCID
Ebr, Jan (FZU-D) RID, ORCID
Hamal, Petr (FZU-D) ORCID
Janeček, Petr (FZU-D) RID, ORCID
Juryšek, Jakub (FZU-D) ORCID
Mandát, Dušan (FZU-D) RID, ORCID
Palatka, Miroslav (FZU-D) RID, ORCID, SAI
Pech, Miroslav (FZU-D) RID, ORCID
Prouza, Michael (FZU-D) RID, ORCID
Řídký, Jan (FZU-D) RID, ORCID
dos Santos, Eva M. Martins (FZU-D) ORCID
Schovánek, Petr (FZU-D) RID, ORCID
Tobiška, Petr (FZU-D) ORCID
Trávníček, Petr (FZU-D) RID, ORCIDNumber of authors 374 Article number 144 Source Title Nuovo Cimento della Societa Italiana di Fisica C-Geophysics and Space Physics - ISSN 1124-1896
Roč. 45, č. 5 (2022)Number of pages 4 s. Language eng - English Country IT - Italy Keywords Ultra High-Energy ; Cosmic Rays Subject RIV BF - Elementary Particles and High Energy Physics OECD category Particles and field physics R&D Projects LTT18004 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LM2015038 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) EF16_013/0001402 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) EF18_046/0016010 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Research Infrastructure AUGER-CZ II - 90102 - Fyzikální ústav AV ČR, v. v. i. Method of publishing Open access Institutional support FZU-D - RVO:68378271 EID SCOPUS 85134224228 DOI https://doi.org/10.1393/ncc/i2022-22144-2 Annotation The most prominent obstacle to identifying the sources of UltraHigh-Energy Cosmic Rays (UHECRs) is their incredibly low flux. For this reason, the Pierre Auger Observatory covers an area of ∼3000 km2 and, in its 17 years of operation, has collected over 2600 UHECR events with energies above 32 EeV. In this contribution, I present the search of this dataset for anisotropies on medium scales of a few tenths of degrees in the arrival directions of UHECRs. Evidence for an overdensity in the Centaurus region of the sky is obtained at the 4σ significance level, this evidence is corroborated by a catalog-based likelihood ratio analysis comparing the dataset against the distribution of the closest radiogalaxies and starburst galaxies. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2023 Electronic address https://www.auger.org/archive/authors_2021_09.html
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