Non-homogeneous solar models with metal enriched envelopes
文献类型：期刊论文
| 作者 | Yang JY(杨家艳) ; Li Y(李焱); Xu HY(许华崟)
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| 刊名 | SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY
 |
| 出版日期 | 2001-02 |
| 卷号 | 44期号:2页码:265-272 |
| 关键词 | solar structure solar evolution solar oscillations |
| ISSN号 | 1006-9283 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Yang, JY (reprint author), NAOCAS, Yunnan Observ, Kunming 650011, Peoples R China. |
| 英文摘要 | Solar models with enhancement of heavy elements in the convective envelopes are investigated using the updated input physics. Unlike previous low-Z models that adopt quite low central metal abundance to considerably reduce neutrino fluxes, we investigate the effects of moderate enrichment of heavy elements in the solar convection zone on the solar structure and p-mode oscillations, It is found that the metal enriched models have less massive convection zones with deeper bottom boundaries, and their temperature profiles are systematically lower while the sound speed profiles are higher in the interior and lower in the envelope than that of the standard model. The contamination of heavy elements at different evolution phases is investigated, which results in little influence on the properties of the solar age models. The surface helium abundance is reduced considerably, and is able to approach the seismically determined value when the enhancement of heavy elements in the convection zone is carefully adjusted. The p-mode frequency patterns of our metal enriched models are systematically 10 mu Hz lower than those of the standard model, and are in better agreement with the results of observations. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Mathematics |
| 类目[WOS] | Mathematics, Applied ; Mathematics |
| 研究领域[WOS] | Mathematics |
| 关键词[WOS] | CONVECTION ZONE ; P-MODES ; FREQUENCIES ; ABUNDANCES ; OPACITIES ; SUN |
| 收录类别 | SCI ; EI |
| 原文出处 | http://link.springer.com/article/10.1007%2FBF02874430 |
| 语种 | 英语 |
| WOS记录号 | WOS:000167195800015 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/5155]  |
| 专题 | 云南天文台_恒星物理研究组 |
| 作者单位 | Yunnan Observatory, NAOCAS, 650011, Kunrning, China |
| 推荐引用方式 GB/T 7714 | Yang JY,Li Y,Xu HY. Non-homogeneous solar models with metal enriched envelopes[J]. SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY,2001,44(2):265-272. |
| APA | Yang JY,Li Y,&Xu HY.(2001).Non-homogeneous solar models with metal enriched envelopes.SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY,44(2),265-272. |
| MLA | Yang JY,et al."Non-homogeneous solar models with metal enriched envelopes".SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY 44.2(2001):265-272. |
入库方式： OAI收割
来源：云南天文台
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