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....
Published in: | Journal of Experimental and Theoretical Physics Letters |
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2001
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Online Access: | https://doi.org/10.1134/1.1402195 http://cds.cern.ch/record/486317 |
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ftcern:oai:cds.cern.ch:486317 2024-09-15T18:40:58+00:00 Correlation function of ultra-high energy cosmic rays favors point sources Tinyakov, P.G. Tkachev, I.I. 2001-02-06 https://doi.org/10.1134/1.1402195 http://cds.cern.ch/record/486317 eng eng doi:10.1134/1.1402195 http://cds.cern.ch/record/486317 astro-ph/0102101 oai:cds.cern.ch:486317 Astrophysics and Astronomy 2001 ftcern https://doi.org/10.1134/1.1402195 2024-07-22T13:43:30Z 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. 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. Other/Unknown Material Yakutsk CERN Document Server (CDS) Journal of Experimental and Theoretical Physics Letters 74 1 1 5 |
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CERN Document Server (CDS) |
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Astrophysics and Astronomy |
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Astrophysics and Astronomy Tinyakov, P.G. Tkachev, I.I. Correlation function of ultra-high energy cosmic rays favors point sources |
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Astrophysics and Astronomy |
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. 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. |
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 |
publishDate |
2001 |
url |
https://doi.org/10.1134/1.1402195 http://cds.cern.ch/record/486317 |
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Yakutsk |
genre_facet |
Yakutsk |
op_relation |
doi:10.1134/1.1402195 http://cds.cern.ch/record/486317 astro-ph/0102101 oai:cds.cern.ch:486317 |
op_doi |
https://doi.org/10.1134/1.1402195 |
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Journal of Experimental and Theoretical Physics Letters |
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74 |
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1 |
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1 |
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5 |
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1810485360497524736 |