Observation of Anisotropy in the Arrival Direction Distribution of Cosmic Rays at TeV Energies with IceCube

机译：利用IceCube观测TeV能量下宇宙射线到达方向分布的各向异性

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The IceCube neutrino detector at the South Pole is sensitive to atmospheric muons produced by primary cosmicrays in the TeV energy range. The high rate of events (about 2 kHz in the full 86-string detector) allows for searches ofanisotropy in the arrival direction distribution of cosmic rays at the level of a few parts per mille. Using the muon datarecorded with IceCube between 2007 and 2010, we show that the cosmic ray flux in the southern hemisphere is notisotropic, but exhibits significant structure on multiple angular scales. In addition to large-scale features in the form ofstrong dipole and quadrupole moments, the data include several localized regions of excess and deficit on scales between10and 30. These features are statistically significant. The origin of the features is currently unknown.

机译：南极处的IceCube中微子探测器对TeV能量范围内的主要宇宙射线产生的大气μ子很敏感。较高的事件发生率（在完整的86弦检测器中约为2 kHz）允许在宇宙射线的到达方向分布中以每百万分之几的水平来搜索各向异性。使用IceCube在2007年至2010年之间记录的μ子数据，我们发现南半球的宇宙射线通量不是各向同性的，但是在多个角度尺度上都表现出显着的结构。除了强偶极矩和四极矩形式的大规模特征外，数据还包括几个局部的过剩和不足的局部区域，其尺度介于10到30之间。这些特征具有统计学意义。功能的来源目前未知。

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来源
《Proceedings of the 32nd International Cosmic Ray Conference》|2011年|1-4|共4页
会议地点 Beijing(CN)
作者
Segev BenZvi; Marcos Santander; Simona Toscano; Stefan Westerhoff;
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作者单位

Physics, University of Wisconsin-Madison, Madison, WI 53703, USA;

Physics, University of Wisconsin-Madison, Madison, WI 53703, USA;

Physics, University of Wisconsin-Madison, Madison, WI 53703, USA;

Physics, University of Wisconsin-Madison, Madison, WI 53703, USA;

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原文格式 PDF
正文语种 eng
中图分类宇宙射线强度变化;
关键词
Cosmic Rays – TeV; Anisotropy; Muons; Neutrinos;

机译：宇宙射线– TeV；各向异性ons子;中微子;

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专利

1. Observation of anisotropy in the arrival direction distribution of cosmic rays above TeV energies with IceCube [J] . Simona Toscano Nuclear Instruments & Methods in Physics Research . 2012,第期

机译：利用IceCube观测TeV能量以上的宇宙射线到达方向分布的各向异性
2. OBSERVATION OF ANISOTROPY IN THE GALACTIC COSMIC-RAY ARRIVAL DIRECTIONS AT 400?TeV WITH ICECUBE [J] . R. Abbasi1, Y. Abdou2, T. Abu-Zayyad3, The Astrophysical journal . 2012,第1期

机译：ICECUBE在400？TeV观测银河宇宙射线方向的各向异性
3. Observation of Anisotropy in the Arrival Direction Distribution of TeV Cosmic Rays With HAWC [J] . D.W. Fiorino, S. BenZvi, S. Westerhoff PoS - Proceedings of Science . 2015,第2015期

机译：用HAWC观测TeV宇宙线到达方向分布的各向异性。
4. Observation of Anisotropy in the Arrival Direction Distribution of Cosmic Rays at TeV Energies with IceCube [C] . Segev BenZvi, Marcos Santander, Simona Toscano, International Cosmic Ray Conference . 2011

机译：冰箱宇宙射线到达宇宙射线到达方向分布的各向异性
5. Anisotropy of arrival directions of ultrahigh energy cosmic rays. [D] . Finley, Chad Barrett. 2006

机译：超高能宇宙射线到达方向的各向异性。
6. Search for patterns by combining cosmic-ray energy and arrival directions at the Pierre Auger Observatory [O] . A. Aab, P. Abreu, M. Aglietta, -1

机译：在Pierre Auger天文台将宇宙射线能量和到达方向结合起来以寻找模式
7. Observation of Anisotropy in the Arrival Direction Distribution of Cosmic Rays above TeV Energies with Icecube [O] . Toscano, S., IceCube Collaboration 2011

机译：Tev能量以上宇宙射线在方冰到达方向分布中的各向异性观测
8. Observation of Anisotropy in the Galactic Cosmic Ray Arrival Directions at 400 TEV With IceCube. [R] . Abbasi, R., Abdou, Y., Abu-Zayyad, T., 2011

机译：利用IceCube观测400 TEV银河宇宙线到达方向的各向异性。

Observation of Anisotropy in the Arrival Direction Distribution of Cosmic Rays at TeV Energies with IceCube

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