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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Detalles Bibliográficos
Autores principales: Tinyakov, P.G., Tkachev, I.I.
Lenguaje:eng
Publicado: 2001
Materias:
Astrophysics and Astronomy
Acceso en línea:https://dx.doi.org/10.1134/1.1402195
http://cds.cern.ch/record/486317
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author Tinyakov, P.G.
Tkachev, I.I.
author_facet Tinyakov, P.G.
Tkachev, I.I.
author_sort Tinyakov, P.G.
collection CERN
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.
id cern-486317
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2001
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spelling cern-4863172023-03-14T18:49:07Zdoi:10.1134/1.1402195http://cds.cern.ch/record/486317engTinyakov, P.G.Tkachev, I.I.Correlation function of ultra-high energy cosmic rays favors point sourcesAstrophysics and AstronomyWe 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.astro-ph/0102101oai:cds.cern.ch:4863172001-02-06
spellingShingle Astrophysics and Astronomy
Tinyakov, P.G.
Tkachev, I.I.
Correlation function of ultra-high energy cosmic rays favors point sources
title 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_short Correlation function of ultra-high energy cosmic rays favors point sources
title_sort correlation function of ultra-high energy cosmic rays favors point sources
topic Astrophysics and Astronomy
url https://dx.doi.org/10.1134/1.1402195
http://cds.cern.ch/record/486317
work_keys_str_mv AT tinyakovpg correlationfunctionofultrahighenergycosmicraysfavorspointsources
AT tkachevii correlationfunctionofultrahighenergycosmicraysfavorspointsources

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