Revisiting the Spatially Dependent Propagation Model with the Latest Observations of Cosmic-Ray Nuclei
文献类型：期刊论文
| 作者 | Guo YQ(郭义庆) ; Liu W(刘伟); Yao YH(姚玉华); Liu, W; Yao, YH; Guo, YQ; Liu, Wei, Yao, Yu-hua; Guo, Yi-Qing
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2018 |
| 卷号 | 869期号:2页码:176 |
| 关键词 | cosmic rays ISM: supernova remnants |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/aaef39 |
| 文献子类 | Article |
| 英文摘要 | Recently the AMS-02 collaboration published detections of light cosmic-ray nuclei, including lithium, beryllium, boron, carbon, and oxygen. Combined with the released energy spectra of proton and helium, both primary and secondary spectra have a prominent hardening above similar to 200 GV. In particular, the spectral variation of secondary cosmic rays is greater than the primary ones. One of the plausible interpretations for the above anomalies is the spatial-dependent diffusion model. It has successfully described various observational phenomena, e.g., hardening of primary nuclei, diffuse gamma-ray distribution and cosmic-ray anisotropy, etc. In this work, we apply the spatial-dependent propagation model to the latest observations, including both primary and secondary nuclei. Apart from the primary components, the spectra of secondary nuclei can be properly reproduced as well, especially the upturn above 200 GV. We also calculate the ratios of both secondary-to-primary and secondary-to-secondary. We find that except for the Be/B ratio, the computations of the spatial-dependent propagation model are in good agreement with the current data. |
| 电子版国际标准刊号 | 1538-4357 |
| WOS关键词 | HELIUM SPECTRA ; SUPERNOVA-REMNANTS ; PROTON ; CONSTRAINTS ; ORIGIN |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000454431700008 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/286989]  |
| 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 | Guo YQ,Liu W,Yao YH,et al. Revisiting the Spatially Dependent Propagation Model with the Latest Observations of Cosmic-Ray Nuclei[J]. ASTROPHYSICAL JOURNAL,2018,869(2):176. |
| APA | 郭义庆.,刘伟.,姚玉华.,Liu, W.,Yao, YH.,...&Guo, Yi-Qing.(2018).Revisiting the Spatially Dependent Propagation Model with the Latest Observations of Cosmic-Ray Nuclei.ASTROPHYSICAL JOURNAL,869(2),176. |
| MLA | 郭义庆,et al."Revisiting the Spatially Dependent Propagation Model with the Latest Observations of Cosmic-Ray Nuclei".ASTROPHYSICAL JOURNAL 869.2(2018):176. |
入库方式： OAI收割
来源：高能物理研究所
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