Northern Sky Galactic Cosmic Ray Anisotropy between 10 and 1000 TeV with the Tibet Air Shower Array
文献类型：期刊论文
| 作者 | Amenomori,M.12; Bi,X. J.11; Chen,D.10; Chen,T. L.13; Chen,W. Y.11; Cui,S. W.14; Danzengluobu,13; Ding,L. K.11; Feng,C. F.15; Feng,Zhaoyang11 |
| 刊名 | The Astrophysical Journal
 |
| 出版日期 | 2017-02-16 |
| 卷号 | 836期号:2 |
| ISSN号 | 0004-637X |
| 关键词 | astroparticle physics cosmic rays |
| DOI | 10.3847/1538-4357/836/2/153 |
| 英文摘要 | Abstract We report on the analysis of the 10–1000 TeV large-scale sidereal anisotropy of Galactic cosmic rays (GCRs) with the data collected by the Tibet Air Shower Array from 1995 October to 2010 February. In this analysis, we improve the energy estimate and extend the decl. range down to ?30°. We find that the anisotropy maps above 100 TeV are distinct from that at a multi-TeV band. The so-called tail-in and loss-cone features identified at low energies get less significant, and a new component appears at ～100 TeV. The spatial distribution of the GCR intensity with an excess (7.2σ pre-trial, 5.2σ post-trial) and a deficit (?5.8σ pre-trial) are observed in the 300 TeV anisotropy map, in close agreement with IceCube’s results at 400 TeV. Combining the Tibet results in the northern sky with IceCube’s results in the southern sky, we establish a full-sky picture of the anisotropy in hundreds of TeV band. We further find that the amplitude of the first order anisotropy increases sharply above ～100 TeV, indicating a new component of the anisotropy. All these results may shed new light on understanding the origin and propagation of GCRs. |
| 语种 | 英语 |
| 出版者 | The American Astronomical Society |
| WOS记录号 | IOP:0004-637X-836-2-153 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/36129]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.School of Information Science and Engineering, Shandong Agriculture University, Taian 271018, China 2.Saitama University, Saitama 338-8570, Japan 3.National Institute of Informatics, Tokyo 101-8430, Japan 4.Sakushin Gakuin University, Utsunomiya 321-3295, Japan 5.Tokyo Metropolitan College of Industrial Technology, Tokyo 116-8523, Japan 6.Max-Planck-Institut für Physik, München D-80805, Deutschland 7.College of Industrial Technology, Nihon University, Narashino 275-8576, Japan 8.Japan Atomic Energy Agency, Tokai-mura 319-1195, Japan 9.Shonan Institute of Technology, Fujisawa 251-8511, Japan 10.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China |
| 推荐引用方式 GB/T 7714 | Amenomori,M.,Bi,X. J.,Chen,D.,et al. Northern Sky Galactic Cosmic Ray Anisotropy between 10 and 1000 TeV with the Tibet Air Shower Array[J]. The Astrophysical Journal,2017,836(2). |
| APA | Amenomori,M..,Bi,X. J..,Chen,D..,Chen,T. L..,Chen,W. Y..,...&Zhou,X. X..(2017).Northern Sky Galactic Cosmic Ray Anisotropy between 10 and 1000 TeV with the Tibet Air Shower Array.The Astrophysical Journal,836(2). |
| MLA | Amenomori,M.,et al."Northern Sky Galactic Cosmic Ray Anisotropy between 10 and 1000 TeV with the Tibet Air Shower Array".The Astrophysical Journal 836.2(2017). |
入库方式： OAI收割
来源：国家天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。