| Modulation of Galactic Cosmic Rays in the Inner Heliosphere over Solar Cycles | |
| Shen, Z. -N.; Qin, G.; Qin, G (reprint author), Harbin Inst Technol, Sch Sci, Shenzhen 518055, Peoples R China. | |
| 作者部门 | 空间科学部 |
| 发表期刊 | ASTROPHYSICAL JOURNAL
 |
| 2018 | |
| 卷号 | 854期号:2页码:137 |
| ISSN | 0004-637X |
| 语种 | 英语 |
| 关键词 | Cosmic Rays Diffusion Sun: Activity Sun: Heliosphere Turbulence |
| 摘要 | The 11- and 22-year modulation of galactic cosmic rays (GCRs) in the inner heliosphere is studied using a numerical model developed by Qin and Shen in 2017. Based on the numerical solutions of Parker's transport equations, the model incorporates a modified Parker heliospheric magnetic field, a locally static time-delayed heliosphere, and a time-dependent diffusion coefficients model in which an analytical expression of the variation of magnetic turbulence magnitude throughout the inner heliosphere is applied. Furthermore, during solar maximum, the solar magnetic polarity is determined randomly with the possibility of A > 0 decided by the percentage of the solar north polar magnetic field being outward and the solar south polar magnetic field being inward. The computed results are compared at various energies with several GCR observations, e.g., the Interplanetary Monitoring Platform 8 (IMP 8), EPHIN on board the Solar and Heliospheric Observatory (SOHO), Ulysses, and Voyager 1 and 2, and they show good agreement. We show that our model has successfully reproduced the 11- and 22-year modulation cycles. |
| 收录类别 | SCI |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.nssc.ac.cn/handle/122/6201 |
| 专题 | 空间科学部 |
| 通讯作者 | Qin, G (reprint author), Harbin Inst Technol, Sch Sci, Shenzhen 518055, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Shen, Z. -N.,Qin, G.,Qin, G . Modulation of Galactic Cosmic Rays in the Inner Heliosphere over Solar Cycles[J]. ASTROPHYSICAL JOURNAL,2018,854(2):137. |
| APA | Shen, Z. -N.,Qin, G.,&Qin, G .(2018).Modulation of Galactic Cosmic Rays in the Inner Heliosphere over Solar Cycles.ASTROPHYSICAL JOURNAL,854(2),137. |
| MLA | Shen, Z. -N.,et al."Modulation of Galactic Cosmic Rays in the Inner Heliosphere over Solar Cycles".ASTROPHYSICAL JOURNAL 854.2(2018):137. |
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| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| 20188542137.pdf（1037KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 请求全文 | |
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