The influences of convective overshooting and semiconvection on the chemical evolution of massive stars
文献类型：期刊论文
| 作者 | Ding CY(丁彩云)1,2,3 ; Li Y(李焱)1,2
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| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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| 出版日期 | 2014-08 |
| 卷号 | 14期号:8页码:979-991 |
| 关键词 | stars: evolution stars: abundances convection diffusion |
| ISSN号 | 1674-4527 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Ding, CY (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China. |
| 英文摘要 | In massive stars, convection in the interior is different from that of intermediate and small mass stars. In the main-sequence phase of small mass stars, there is a convective core and a radiative envelope, between which are the radiative intermediate layers with uneven chemical abundances. Semiconvection would occur in the intermediate layers between the convective core and the homogeneous envelope in massive stars. We treat core convective overshooting and semiconvection together as a process. We found that when decreasing overshooting, the semiconvection is more pronounced. In these two processes, we introduce one diffusive parameter D, which is different from other authors who have introduced different parameters for these two zones. The influences of the turbulent diffusion process on chemical evolution and other quantities of the stellar structure are shown in the present paper. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | STELLAR EVOLUTION ; MAIN-SEQUENCE ; INTERMEDIATE-MASS ; HELIUM EXHAUSTION ; SEMI-CONVECTION ; SOLAR MODELS ; DIFFUSION ; OPACITIES ; STATE ; PHASE |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/article/10.1088/1674-4527/14/8/008/meta |
| 语种 | 英语 |
| WOS记录号 | WOS:000340698100008 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/5237]  |
| 专题 | 云南天文台_恒星物理研究组 云南天文台_中国科学院天体结构与演化重点实验室 |
| 作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China 3.University of Chinese Academy of Sciences, Beijing 100049, China |
| 推荐引用方式 GB/T 7714 | Ding CY,Li Y. The influences of convective overshooting and semiconvection on the chemical evolution of massive stars[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2014,14(8):979-991. |
| APA | Ding CY,&Li Y.(2014).The influences of convective overshooting and semiconvection on the chemical evolution of massive stars.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,14(8),979-991. |
| MLA | Ding CY,et al."The influences of convective overshooting and semiconvection on the chemical evolution of massive stars".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 14.8(2014):979-991. |
入库方式： OAI收割
来源：云南天文台
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