Influence of Earth-directed Coronal Mass Ejections on the Sun's Shadow Observed by the Tibet-III Air Shower Array
文献类型：期刊论文
| 作者 | Tibet ASy Collaboration |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2018 |
| 卷号 | 860期号:1页码:13 |
| ISSN号 | 0004-637X |
| 关键词 | cosmic rays magnetic fields Sun: activity Sun: coronal mass ejections (CMEs) |
| DOI | 10.3847/1538-4357/aac2e6 |
| 文献子类 | Article |
| 英文摘要 | We examine the possible influence of Earth-directed coronal mass ejections (ECMEs) on the Sun's shadow in the 3. TeV cosmic-ray intensity observed by the Tibet-III air shower (AS) array. We confirm a clear solar-cycle variation of the intensity deficit in the Sun's shadow during ten years between 2000 and 2009. This solar-cycle variation is overall reproduced by our Monte Carlo (MC) simulations of the Sun's shadow based on the potential field model of the solar magnetic field averaged over each solar rotation period. We find, however, that the magnitude of the observed intensity deficit in the Sun's shadow is significantly less than that predicted by MC simulations, particularly during the period around solar maximum when a significant number of ECMEs is recorded. The. 2 tests of the agreement between the observations and the MC simulations show that the difference is larger during the periods when the ECMEs occur, and the difference is reduced if the periods of ECMEs are excluded from the analysis. This suggests the first experimental evidence of the ECMEs affecting the Sun's shadow observed in the 3. TeV cosmic-ray intensity. |
| 电子版国际标准刊号 | 1538-4357 |
| WOS关键词 | MAGNETIC-FIELD ; GEOMAGNETIC STORMS ; MUON DETECTOR ; COSMIC-RAYS ; INTERPLANETARY ; PHASE ; MAXIMUM ; MODEL ; FLUX |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000434758200001 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/287026]  |
| 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 ASy Collaboration. Influence of Earth-directed Coronal Mass Ejections on the Sun's Shadow Observed by the Tibet-III Air Shower Array[J]. ASTROPHYSICAL JOURNAL,2018,860(1):13. |
| APA | Tibet ASy Collaboration.(2018).Influence of Earth-directed Coronal Mass Ejections on the Sun's Shadow Observed by the Tibet-III Air Shower Array.ASTROPHYSICAL JOURNAL,860(1),13. |
| MLA | Tibet ASy Collaboration."Influence of Earth-directed Coronal Mass Ejections on the Sun's Shadow Observed by the Tibet-III Air Shower Array".ASTROPHYSICAL JOURNAL 860.1(2018):13. |
入库方式： OAI收割
来源：高能物理研究所
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