Observation of anisotropy in the arrival direction distribution of cosmic rays at TeV energies with IceCube
The IceCube neutrino detector at the South Pole is sensitive to atmospheric muons produced by primary cosmic rays in the TeV energy range. The high rate of events (about 2 kHz in the full 86-string detector) allows for searches of anisotropy in the arrival direction distribution of cosmic rays at th...
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ftunivbruxelles:oai:dipot.ulb.ac.be:2013/297541 2023-05-15T18:22:25+02:00 Observation of anisotropy in the arrival direction distribution of cosmic rays at TeV energies with IceCube BenZvi, Segev Y. Santander, Marcos Toscano, Simona Westerhoff, Stefan 2011 No full-text files http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/297541 fr fre uri/info:doi/10.7529/ICRC2011/V04/0306 uri/info:scp/84899541674 http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/297541 In: Proceedings of the 32nd International Cosmic Ray Conference. Institute of High Energy Physics Astronomie Astrophysique Sciences de l'espace info:eu-repo/semantics/conferencePaper info:ulb-repo/semantics/conferencePaper info:ulb-repo/semantics/openurl/proceeding 2011 ftunivbruxelles 2022-06-12T21:54:29Z The IceCube neutrino detector at the South Pole is sensitive to atmospheric muons produced by primary cosmic rays in the TeV energy range. The high rate of events (about 2 kHz in the full 86-string detector) allows for searches of anisotropy in the arrival direction distribution of cosmic rays at the level of a few parts per mille. Using the muon data recorded with IceCube between 2007 and 2010, we show that the cosmic ray flux in the southern hemisphere is not isotropic, but exhibits significant structure on multiple angular scales. In addition to large-scale features in the form of strong dipole and quadrupole moments, the data include several localized regions of excess and deficit on scales between 10° and 30°. These features are statistically significant. The origin of the features is currently unknown. info:eu-repo/semantics/published Conference Object South pole DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) South Pole |
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DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
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ftunivbruxelles |
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French |
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Astronomie Astrophysique Sciences de l'espace |
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Astronomie Astrophysique Sciences de l'espace BenZvi, Segev Y. Santander, Marcos Toscano, Simona Westerhoff, Stefan Observation of anisotropy in the arrival direction distribution of cosmic rays at TeV energies with IceCube |
topic_facet |
Astronomie Astrophysique Sciences de l'espace |
description |
The IceCube neutrino detector at the South Pole is sensitive to atmospheric muons produced by primary cosmic rays in the TeV energy range. The high rate of events (about 2 kHz in the full 86-string detector) allows for searches of anisotropy in the arrival direction distribution of cosmic rays at the level of a few parts per mille. Using the muon data recorded with IceCube between 2007 and 2010, we show that the cosmic ray flux in the southern hemisphere is not isotropic, but exhibits significant structure on multiple angular scales. In addition to large-scale features in the form of strong dipole and quadrupole moments, the data include several localized regions of excess and deficit on scales between 10° and 30°. These features are statistically significant. The origin of the features is currently unknown. info:eu-repo/semantics/published |
format |
Conference Object |
author |
BenZvi, Segev Y. Santander, Marcos Toscano, Simona Westerhoff, Stefan |
author_facet |
BenZvi, Segev Y. Santander, Marcos Toscano, Simona Westerhoff, Stefan |
author_sort |
BenZvi, Segev Y. |
title |
Observation of anisotropy in the arrival direction distribution of cosmic rays at TeV energies with IceCube |
title_short |
Observation of anisotropy in the arrival direction distribution of cosmic rays at TeV energies with IceCube |
title_full |
Observation of anisotropy in the arrival direction distribution of cosmic rays at TeV energies with IceCube |
title_fullStr |
Observation of anisotropy in the arrival direction distribution of cosmic rays at TeV energies with IceCube |
title_full_unstemmed |
Observation of anisotropy in the arrival direction distribution of cosmic rays at TeV energies with IceCube |
title_sort |
observation of anisotropy in the arrival direction distribution of cosmic rays at tev energies with icecube |
publishDate |
2011 |
url |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/297541 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
In: Proceedings of the 32nd International Cosmic Ray Conference. Institute of High Energy Physics |
op_relation |
uri/info:doi/10.7529/ICRC2011/V04/0306 uri/info:scp/84899541674 http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/297541 |
_version_ |
1766201822842716160 |