Galactic Cosmic-Ray Anisotropy in the Northern Hemisphere from the ARGO-YBJ Experiment during 2008-2012
文献类型：期刊论文
| 作者 | ARGO-YBJ Collaboration |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2018 |
| 卷号 | 861期号:2页码:93 |
| 关键词 | astroparticle physics cosmic rays |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/aac6cc |
| 文献子类 | Article |
| 英文摘要 | This paper reports on the observation of the sidereal large-scale anisotropy of cosmic rays using data collected by the ARGO-YBJ experiment over 5 years (2008-2012). This analysis extends previous work limited to the period from 2008 January to 2009 December, near the minimum of solar activity between cycles 23 and 24. With the new data sample, the period of solar cycle 24 from near minimum to maximum is investigated. A new method is used to improve the energy reconstruction, allowing us to cover a much wider energy range, from 4 to 520 TeV. Below 100 TeV, the anisotropy is dominated by two wide regions, the so-called "tail-in" and "loss-cone" features. At higher energies, a dramatic change of the morphology is confirmed. The yearly time dependence of the anisotropy is investigated. Finally, no noticeable variation of cosmic-ray anisotropy with solar activity is observed for a median energy of 7 TeV. |
| 电子版国际标准刊号 | 1538-4357 |
| WOS关键词 | AIR-SHOWER ARRAY ; SCALE SIDEREAL ANISOTROPY ; ARRIVAL DIRECTIONS ; SKY SURVEY ; ENERGY ; INTENSITY ; DETECTOR |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000438195500008 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/286108]  |
| 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 | ARGO-YBJ Collaboration. Galactic Cosmic-Ray Anisotropy in the Northern Hemisphere from the ARGO-YBJ Experiment during 2008-2012[J]. ASTROPHYSICAL JOURNAL,2018,861(2):93. |
| APA | ARGO-YBJ Collaboration.(2018).Galactic Cosmic-Ray Anisotropy in the Northern Hemisphere from the ARGO-YBJ Experiment during 2008-2012.ASTROPHYSICAL JOURNAL,861(2),93. |
| MLA | ARGO-YBJ Collaboration."Galactic Cosmic-Ray Anisotropy in the Northern Hemisphere from the ARGO-YBJ Experiment during 2008-2012".ASTROPHYSICAL JOURNAL 861.2(2018):93. |
入库方式： OAI收割
来源：高能物理研究所
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