Modulation of Galactic Cosmic Rays in the Inner Heliosphere, Comparing with PAMELA Measurements
文献类型：期刊论文
| 作者 | Qin, G.; Shen, Z. -N.; Qin, G (reprint author), Harbin Inst Technol, Sch Sci, Shenzhen 518055, Peoples R China.; Qin, G (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing 100190, Peoples R China.; Qin, G (reprint author), Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China. |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2017 |
| 卷号 | 846期号:1 |
| 关键词 | Cosmic Rays Sun: Activity Sun: Heliosphere Turbulence |
| ISSN号 | 0004-637X |
| 英文摘要 | We develop a numerical model to study the time-dependent modulation of galactic cosmic rays in the inner heliosphere. In the model, a time-delayed modified Parker heliospheric magnetic field (HMF) and a new diffusion coefficient model, NLGCE-F, from Qin & Zhang, are adopted. In addition, the latitudinal dependence of magnetic turbulence magnitude is assumed to be similar to(1 + sin(2) theta)/2 from the observations of Ulysses, and the radial dependence is assumed to be similar to r(S), where we choose an expression of S as a function of the heliospheric current sheet tilt angle. We show that the analytical expression used to describe the spatial variation of HMF turbulence magnitude agrees well with the Ulysses, Voyager 1, and Voyager 2 observations. By numerically calculating the modulation code, we get the proton energy spectra as a function of time during the recent solar minimum, it is shown that the modulation results are consistent with the Payload for Antimatter-Matter Exploration and Light-nuclei Astrophysics measurements. |
| 语种 | 英语 |
| 资助机构 | Specialized Research Fund for State Key Laboratories of China ; [NNSFC 41374177] ; [NNSFC 41574172] ; [NNSFC 41125016] |
| 源URL | [http://ir.nssc.ac.cn/handle/122/6037]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 通讯作者 | Qin, G (reprint author), Harbin Inst Technol, Sch Sci, Shenzhen 518055, Peoples R China.; Qin, G (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing 100190, Peoples R China.; Qin, G (reprint author), Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Qin, G.,Shen, Z. -N.,Qin, G ,et al. Modulation of Galactic Cosmic Rays in the Inner Heliosphere, Comparing with PAMELA Measurements[J]. ASTROPHYSICAL JOURNAL,2017,846(1). |
| APA | Qin, G.,Shen, Z. -N.,Qin, G ,Qin, G ,&Qin, G .(2017).Modulation of Galactic Cosmic Rays in the Inner Heliosphere, Comparing with PAMELA Measurements.ASTROPHYSICAL JOURNAL,846(1). |
| MLA | Qin, G.,et al."Modulation of Galactic Cosmic Rays in the Inner Heliosphere, Comparing with PAMELA Measurements".ASTROPHYSICAL JOURNAL 846.1(2017). |
入库方式： OAI收割
来源：国家空间科学中心
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