The effects of the Reimers eta on the solar rotational period when our Sun evolves to the RGB tip
文献类型：期刊论文
| 作者 | Guo, Jianpo1,2; Lin, Ling1; Bai, Chunyan1; Liu, Jinzhong3
|
| 刊名 | ASTROPHYSICS AND SPACE SCIENCE
 |
| 出版日期 | 2017 |
| 卷号 | 362期号:1 |
| 关键词 | Sun: rotation Stars: mass loss ISM: planetary nebulae Planets: hot Jupiter |
| ISSN号 | 0004-640X |
| 英文摘要 | Our Sun will expand enormously and lose substantial mass via a stellar wind during the red giant branch (RGB) phase; the rotational period will be prolonged by several orders of magnitude. It is difficult to predict how much mass the Sun will lose before it reaches the RGB tip. Therefore, the solar rotational period at the RGB tip is also quite indeterminate. In this work, the Sun is considered as a two-component system comprised of a core and a convective envelope, each being allowed to rotate freely. The angular momentum transfer from the inner planets to the solar envelope is taken into consideration. Using Eggleton's stellar evolution code, we study how the solar rotational period at the RGB tip depends on the value of Reimers. chosen. The solar envelope's rotational period at the RGB tip varies from 1 792 to 736 934 years, as the Reimers. is changed from 0.00 to 0.75. Recent observations show that the average Reimers. of Sun-like stars is 0.477. Adopting this average value of the Reimers., the solar envelope's rotational period at the RGB tip will be 24 868 years. We also show how the envelope's rotational evolves with age and luminosity. Other Sun-like stars, with different planetary configurations, may prematurely eject mass and lead to planetary nebulae, if they engulf a brown-dwarf companion at the RGB tip. Swallowing a planet with 13 Jupiter masses and a 3-day orbit, a Sun-like star can become a rapidly rotating giant star. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | POST-MAIN-SEQUENCE ; RED GIANT BRANCH ; STELLAR EVOLUTION ; MASS-LOSS ; HOT JUPITERS ; WHITE-DWARFS ; COOL STARS ; OPACITIES ; EARTH ; SYSTEMS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000392295900015 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/1421]  |
| 专题 | 新疆天文台_光学天文与技术应用研究室 |
| 作者单位 | 1.Puer Univ, Sch Sci & Technol, Puer 665000, Yunnan Province, Peoples R China 2.Open Key Lab Mech Yunnan Prov, Puer 665000, Yunnan Province, Peoples R China 3.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang Provin, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Jianpo,Lin, Ling,Bai, Chunyan,et al. The effects of the Reimers eta on the solar rotational period when our Sun evolves to the RGB tip[J]. ASTROPHYSICS AND SPACE SCIENCE,2017,362(1). |
| APA | Guo, Jianpo,Lin, Ling,Bai, Chunyan,&Liu, Jinzhong.(2017).The effects of the Reimers eta on the solar rotational period when our Sun evolves to the RGB tip.ASTROPHYSICS AND SPACE SCIENCE,362(1). |
| MLA | Guo, Jianpo,et al."The effects of the Reimers eta on the solar rotational period when our Sun evolves to the RGB tip".ASTROPHYSICS AND SPACE SCIENCE 362.1(2017). |
入库方式： OAI收割
来源：新疆天文台
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