Northern Sky Galactic Cosmic Ray Anisotropy between 10 and 1000TeV with the Tibet Air Shower Array
文献类型：期刊论文
| 作者 | Tibet AS Colloboration |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2017 |
| 卷号 | 836期号:2页码:153 |
| 关键词 | astroparticle physics cosmic rays |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/836/2/153 |
| 文献子类 | Article |
| 英文摘要 | 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 degrees. 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 similar to 100TeV. The spatial distribution of the GCR intensity with an excess (7.2 sigma pre-trial, 5.2 sigma post-trial) and a deficit (-5.8 sigma 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 similar to 100 TeV, indicating a new component of the anisotropy. All these results may shed new light on understanding the origin and propagation of GCRs. |
| 电子版国际标准刊号 | 1538-4357 |
| WOS关键词 | SIDEREAL ANISOTROPY ; ARRIVAL DIRECTIONS ; TEV ; PROPAGATION ; INTENSITY ; SPECTRUM ; ICECUBE ; SOLAR |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000395866500001 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/284706]  |
| 专题 | 高能物理研究所_粒子天体物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Tibet AS Colloboration. Northern Sky Galactic Cosmic Ray Anisotropy between 10 and 1000TeV with the Tibet Air Shower Array[J]. ASTROPHYSICAL JOURNAL,2017,836(2):153. |
| APA | Tibet AS Colloboration.(2017).Northern Sky Galactic Cosmic Ray Anisotropy between 10 and 1000TeV with the Tibet Air Shower Array.ASTROPHYSICAL JOURNAL,836(2),153. |
| MLA | Tibet AS Colloboration."Northern Sky Galactic Cosmic Ray Anisotropy between 10 and 1000TeV with the Tibet Air Shower Array".ASTROPHYSICAL JOURNAL 836.2(2017):153. |
入库方式： OAI收割
来源：高能物理研究所
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