Correlation function of ultra-high energy cosmic rays favors point sources

We calculate the angular two-point correlation function of ultra-high energy cosmic rays (UHECR) observed by AGASA and Yakutsk experiments. In both data sets, there is a strong signal at highest energies, which is concentrated in the first bin of the size of the angular resolution of the experiment....

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Main Authors: Tinyakov, P. G., Tkachev, I. I.
Format: Text
Language:unknown
Published: arXiv 2001
Subjects:
Astrophysics astro-ph
High Energy Physics - Phenomenology hep-ph
FOS Physical sciences
Yakutsk
Online Access:https://dx.doi.org/10.48550/arxiv.astro-ph/0102101
https://arxiv.org/abs/astro-ph/0102101
id ftdatacite:10.48550/arxiv.astro-ph/0102101
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spelling ftdatacite:10.48550/arxiv.astro-ph/0102101 2023-05-15T18:45:25+02:00 Correlation function of ultra-high energy cosmic rays favors point sources Tinyakov, P. G. Tkachev, I. I. 2001 https://dx.doi.org/10.48550/arxiv.astro-ph/0102101 https://arxiv.org/abs/astro-ph/0102101 unknown arXiv https://dx.doi.org/10.1134/1.1402195 Assumed arXiv.org perpetual, non-exclusive license to distribute this article for submissions made before January 2004 http://arxiv.org/licenses/assumed-1991-2003/ Astrophysics astro-ph High Energy Physics - Phenomenology hep-ph FOS Physical sciences article-journal Article ScholarlyArticle Text 2001 ftdatacite https://doi.org/10.48550/arxiv.astro-ph/0102101 https://doi.org/10.1134/1.1402195 2022-04-01T17:01:16Z We calculate the angular two-point correlation function of ultra-high energy cosmic rays (UHECR) observed by AGASA and Yakutsk experiments. In both data sets, there is a strong signal at highest energies, which is concentrated in the first bin of the size of the angular resolution of the experiment. For the uniform distribution of sources, the probability of a chance clustering is 4 x 10^{-6}. Correlations are absent or not significant at larger angles. This favors the models with compact sources of UHECR. : Replaced with the version accepted for publication in JETP Lett Text Yakutsk DataCite Metadata Store (German National Library of Science and Technology) Yakutsk
institution Open Polar
collection DataCite Metadata Store (German National Library of Science and Technology)
op_collection_id ftdatacite
language unknown
topic Astrophysics astro-ph
High Energy Physics - Phenomenology hep-ph
FOS Physical sciences
spellingShingle Astrophysics astro-ph
High Energy Physics - Phenomenology hep-ph
FOS Physical sciences
Tinyakov, P. G.
Tkachev, I. I.
Correlation function of ultra-high energy cosmic rays favors point sources
topic_facet Astrophysics astro-ph
High Energy Physics - Phenomenology hep-ph
FOS Physical sciences
description We calculate the angular two-point correlation function of ultra-high energy cosmic rays (UHECR) observed by AGASA and Yakutsk experiments. In both data sets, there is a strong signal at highest energies, which is concentrated in the first bin of the size of the angular resolution of the experiment. For the uniform distribution of sources, the probability of a chance clustering is 4 x 10^{-6}. Correlations are absent or not significant at larger angles. This favors the models with compact sources of UHECR. : Replaced with the version accepted for publication in JETP Lett
format Text
author Tinyakov, P. G.
Tkachev, I. I.
author_facet Tinyakov, P. G.
Tkachev, I. I.
author_sort Tinyakov, P. G.
title Correlation function of ultra-high energy cosmic rays favors point sources
title_short Correlation function of ultra-high energy cosmic rays favors point sources
title_full Correlation function of ultra-high energy cosmic rays favors point sources
title_fullStr Correlation function of ultra-high energy cosmic rays favors point sources
title_full_unstemmed Correlation function of ultra-high energy cosmic rays favors point sources
title_sort correlation function of ultra-high energy cosmic rays favors point sources
publisher arXiv
publishDate 2001
url https://dx.doi.org/10.48550/arxiv.astro-ph/0102101
https://arxiv.org/abs/astro-ph/0102101
geographic Yakutsk
geographic_facet Yakutsk
genre Yakutsk
genre_facet Yakutsk
op_relation https://dx.doi.org/10.1134/1.1402195
op_rights Assumed arXiv.org perpetual, non-exclusive license to distribute this article for submissions made before January 2004
http://arxiv.org/licenses/assumed-1991-2003/
op_doi https://doi.org/10.48550/arxiv.astro-ph/0102101
https://doi.org/10.1134/1.1402195
_version_ 1766236468639956992

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