All-particle cosmic ray energy spectrum measured with 26 IceTop stations
We report on a measurement of the cosmic ray energy spectrum with the IceTop air shower array, the surface component of the IceCube Neutrino Observatory at the South Pole. The data used in this analysis were taken between June and October, 2007, with 26 surface stations operational at that time, cor...
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ftunivgeneve:oai:unige.ch:unige:39077 2023-05-15T18:22:44+02:00 All-particle cosmic ray energy spectrum measured with 26 IceTop stations IceCube Collaboration Aguilar Sanchez, Juan Montaruli, Teresa 2013 https://archive-ouverte.unige.ch/unige:39077 eng eng info:eu-repo/semantics/altIdentifier/doi/10.1016/j.astropartphys.2013.01.016 unige:39077 https://archive-ouverte.unige.ch/unige:39077 info:eu-repo/semantics/restrictedAccess ISSN: 0927-6505 Astroparticle physics, Vol. 44 (2013) pp. 40-58 info:eu-repo/classification/ddc/500.2 Cosmic rays Energy spectrum IceCube IceTop Text Article scientifique info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2013 ftunivgeneve https://doi.org/10.1016/j.astropartphys.2013.01.016 2022-06-19T23:39:22Z We report on a measurement of the cosmic ray energy spectrum with the IceTop air shower array, the surface component of the IceCube Neutrino Observatory at the South Pole. The data used in this analysis were taken between June and October, 2007, with 26 surface stations operational at that time, corresponding to about one third of the final array. The fiducial area used in this analysis was 0.122 km2. The analysis investigated the energy spectrum from 1 to 100 PeV measured for three different zenith angle ranges between 0° and 46°. Because of the isotropy of cosmic rays in this energy range the spectra from all zenith angle intervals have to agree. The cosmic-ray energy spectrum was determined under different assumptions on the primary mass composition. Good agreement of spectra in the three zenith angle ranges was found for the assumption of pure proton and a simple two-component model. For zenith angles θ < 30°, where the mass dependence is smallest, the knee in the cosmic ray energy spectrum was observed at about 4 PeV, with a spectral index above the knee of about −3.1. Moreover, an indication of a flattening of the spectrum above 22 PeV was observed. Article in Journal/Newspaper South pole Université de Genève: Archive ouverte UNIGE South Pole Astroparticle Physics 44 40 58 |
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Open Polar |
collection |
Université de Genève: Archive ouverte UNIGE |
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ftunivgeneve |
language |
English |
topic |
info:eu-repo/classification/ddc/500.2 Cosmic rays Energy spectrum IceCube IceTop |
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info:eu-repo/classification/ddc/500.2 Cosmic rays Energy spectrum IceCube IceTop IceCube Collaboration All-particle cosmic ray energy spectrum measured with 26 IceTop stations |
topic_facet |
info:eu-repo/classification/ddc/500.2 Cosmic rays Energy spectrum IceCube IceTop |
description |
We report on a measurement of the cosmic ray energy spectrum with the IceTop air shower array, the surface component of the IceCube Neutrino Observatory at the South Pole. The data used in this analysis were taken between June and October, 2007, with 26 surface stations operational at that time, corresponding to about one third of the final array. The fiducial area used in this analysis was 0.122 km2. The analysis investigated the energy spectrum from 1 to 100 PeV measured for three different zenith angle ranges between 0° and 46°. Because of the isotropy of cosmic rays in this energy range the spectra from all zenith angle intervals have to agree. The cosmic-ray energy spectrum was determined under different assumptions on the primary mass composition. Good agreement of spectra in the three zenith angle ranges was found for the assumption of pure proton and a simple two-component model. For zenith angles θ < 30°, where the mass dependence is smallest, the knee in the cosmic ray energy spectrum was observed at about 4 PeV, with a spectral index above the knee of about −3.1. Moreover, an indication of a flattening of the spectrum above 22 PeV was observed. |
author2 |
Aguilar Sanchez, Juan Montaruli, Teresa |
format |
Article in Journal/Newspaper |
author |
IceCube Collaboration |
author_facet |
IceCube Collaboration |
author_sort |
IceCube Collaboration |
title |
All-particle cosmic ray energy spectrum measured with 26 IceTop stations |
title_short |
All-particle cosmic ray energy spectrum measured with 26 IceTop stations |
title_full |
All-particle cosmic ray energy spectrum measured with 26 IceTop stations |
title_fullStr |
All-particle cosmic ray energy spectrum measured with 26 IceTop stations |
title_full_unstemmed |
All-particle cosmic ray energy spectrum measured with 26 IceTop stations |
title_sort |
all-particle cosmic ray energy spectrum measured with 26 icetop stations |
publishDate |
2013 |
url |
https://archive-ouverte.unige.ch/unige:39077 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
ISSN: 0927-6505 Astroparticle physics, Vol. 44 (2013) pp. 40-58 |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.astropartphys.2013.01.016 unige:39077 https://archive-ouverte.unige.ch/unige:39077 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.astropartphys.2013.01.016 |
container_title |
Astroparticle Physics |
container_volume |
44 |
container_start_page |
40 |
op_container_end_page |
58 |
_version_ |
1766202148354260992 |