The Extremely High Energy Cosmic Rays
Experimental results from Haverah Park, Yakutsk, AGASA and Fly's Eye are reviewed. All these experiments work in the energy range above 0.1 EeV. The 'dip' structure around 3 EeV in the energy spectrum is well established by all the experiments, though the exact position differs slight...
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ftdatacite:10.48550/arxiv.astro-ph/9802294 2023-05-15T18:45:23+02:00 The Extremely High Energy Cosmic Rays Yoshida, Shigeru Dai, Hongyue 1998 https://dx.doi.org/10.48550/arxiv.astro-ph/9802294 https://arxiv.org/abs/astro-ph/9802294 unknown arXiv https://dx.doi.org/10.1088/0954-3899/24/5/002 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 FOS Physical sciences article-journal Article ScholarlyArticle Text 1998 ftdatacite https://doi.org/10.48550/arxiv.astro-ph/9802294 https://doi.org/10.1088/0954-3899/24/5/002 2022-04-01T17:14:49Z Experimental results from Haverah Park, Yakutsk, AGASA and Fly's Eye are reviewed. All these experiments work in the energy range above 0.1 EeV. The 'dip' structure around 3 EeV in the energy spectrum is well established by all the experiments, though the exact position differs slightly. Fly's Eye and Yakutsk results on the chemical composition indicate that the cosmic rays are getting lighter over the energy range from 0.1 EeV to 10 EeV, but the exact fraction is hadronic interaction model dependent, as indicated by the AGASA analysis. The arrival directions of cosmic rays are largely isotropic, but interesting features may be starting to emerge. Most of the experimental results can best be explained with the scenario that an extragalactic component gradually takes over a galactic population as energy increases and cosmic rays at the highest energies are dominated by particles coming from extragalactic space. However, identification of the extragalactic sources has not yet been successful because of limited statistics and the resolution of the data. : The review paper including 21 figures. 39 pages: To be published in Journal of Physics G Text Yakutsk DataCite Metadata Store (German National Library of Science and Technology) Yakutsk |
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Astrophysics astro-ph FOS Physical sciences |
spellingShingle |
Astrophysics astro-ph FOS Physical sciences Yoshida, Shigeru Dai, Hongyue The Extremely High Energy Cosmic Rays |
topic_facet |
Astrophysics astro-ph FOS Physical sciences |
description |
Experimental results from Haverah Park, Yakutsk, AGASA and Fly's Eye are reviewed. All these experiments work in the energy range above 0.1 EeV. The 'dip' structure around 3 EeV in the energy spectrum is well established by all the experiments, though the exact position differs slightly. Fly's Eye and Yakutsk results on the chemical composition indicate that the cosmic rays are getting lighter over the energy range from 0.1 EeV to 10 EeV, but the exact fraction is hadronic interaction model dependent, as indicated by the AGASA analysis. The arrival directions of cosmic rays are largely isotropic, but interesting features may be starting to emerge. Most of the experimental results can best be explained with the scenario that an extragalactic component gradually takes over a galactic population as energy increases and cosmic rays at the highest energies are dominated by particles coming from extragalactic space. However, identification of the extragalactic sources has not yet been successful because of limited statistics and the resolution of the data. : The review paper including 21 figures. 39 pages: To be published in Journal of Physics G |
format |
Text |
author |
Yoshida, Shigeru Dai, Hongyue |
author_facet |
Yoshida, Shigeru Dai, Hongyue |
author_sort |
Yoshida, Shigeru |
title |
The Extremely High Energy Cosmic Rays |
title_short |
The Extremely High Energy Cosmic Rays |
title_full |
The Extremely High Energy Cosmic Rays |
title_fullStr |
The Extremely High Energy Cosmic Rays |
title_full_unstemmed |
The Extremely High Energy Cosmic Rays |
title_sort |
extremely high energy cosmic rays |
publisher |
arXiv |
publishDate |
1998 |
url |
https://dx.doi.org/10.48550/arxiv.astro-ph/9802294 https://arxiv.org/abs/astro-ph/9802294 |
geographic |
Yakutsk |
geographic_facet |
Yakutsk |
genre |
Yakutsk |
genre_facet |
Yakutsk |
op_relation |
https://dx.doi.org/10.1088/0954-3899/24/5/002 |
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/9802294 https://doi.org/10.1088/0954-3899/24/5/002 |
_version_ |
1766236440111349760 |