Anisotropies of different mass compositions of cosmic rays
文献类型：期刊论文
| 作者 | Qiao, Bing-Qiang3,4; Liu, Wei2; Guo, Yi-Qing2; Yuan, Qiang1,3,4 |
| 刊名 | JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
 |
| 出版日期 | 2019-12-01 |
| 期号 | 12页码:16 |
| 关键词 | cosmic ray theory particle acceleration supernova remnants |
| ISSN号 | 1475-7516 |
| DOI | 10.1088/1475-7516/2019/12/007 |
| 通讯作者 | Qiao, Bing-Qiang(qiaobq@ihep.ac.cn) ; Liu, Wei(liuwei@ihep.ac.cn) ; Guo, Yi-Qing(guoyq@ihep.ac.cn) ; Yuan, Qiang(yuanq@pmo.ac.cn) |
| 英文摘要 | The spectral hardenings of cosmic ray nuclei above similar to 200 GV followed by softenings around 10 TV, the knee of the all-particle spectrum around PeV energies, as well as the pattern change of the amplitude and phase of the large-scale anisotropies around 100 TeV indicate the complexities of the origin and transportation of Galactic cosmic rays. It has been shown that nearby source(s) are most likely to be the cause of such spectral features of both the spectra and the anisotropies. In this work, we study the anisotropy features of different mass composition (or mass groups) of cosmic rays in this nearby source model. We show that even if the spectral features from the nearby source component is less distinctive compared with the background component from e.g., the population of distant sources, the anisotropy features are more remarkable to be identified. Measurements of the anisotropies of each mass composition (group) of cosmic rays by the space experiments such as DAMPE and HERD and the ground-based experiments such as LHAASO in the near future are expected to be able to critically test this scenario. |
| WOS关键词 | ENERGY-SPECTRA ; PARTICLE ACCELERATION ; SUPERNOVA-REMNANTS ; NUCLEI ; PROPAGATION ; INTENSITY ; EMISSION ; ORIGIN ; PROTON ; TIBET |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000507261900004 |
| 出版者 | IOP PUBLISHING LTD |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/35511]  |
| 专题 | 中国科学院紫金山天文台 |
| 通讯作者 | Qiao, Bing-Qiang; Liu, Wei; Guo, Yi-Qing; Yuan, Qiang |
| 作者单位 | 1.Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China 3.Univ Sci & Technol China, Sch Astron & Space Sci, Hefei 230026, Peoples R China 4.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qiao, Bing-Qiang,Liu, Wei,Guo, Yi-Qing,et al. Anisotropies of different mass compositions of cosmic rays[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2019(12):16. |
| APA | Qiao, Bing-Qiang,Liu, Wei,Guo, Yi-Qing,&Yuan, Qiang.(2019).Anisotropies of different mass compositions of cosmic rays.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(12),16. |
| MLA | Qiao, Bing-Qiang,et al."Anisotropies of different mass compositions of cosmic rays".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .12(2019):16. |
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来源：紫金山天文台
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