SOUND-SPEED INVERSION OF THE SUN USING A NONLOCAL STATISTICAL CONVECTION THEORY
文献类型：期刊论文
| 作者 | Zhang, Chunguang1,2; Deng, Licai1; Xiong, Darun3 ; Christensen-Dalsgaard, Jorgen4
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| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
 |
| 出版日期 | 2012-11-01 |
| 卷号 | 759期号:1页码:L14(5pp) |
| 关键词 | convection Sun: helioseismology Sun: interior |
| ISSN号 | 2041-8205 |
| 英文摘要 | Helioseismic inversions reveal a major discrepancy in sound speed between the Sun and the standard solar model just below the base of the solar convection zone. We demonstrate that this discrepancy is caused by the inherent shortcomings of the local mixing-length theory adopted in the standard solar model. Using a self-consistent nonlocal convection theory, we construct an envelope model of the Sun for sound-speed inversion. Our solar model has a very smooth transition from the convective envelope to the radiative interior, and the convective energy flux changes sign crossing the boundaries of the convection zone. It shows evident improvement over the standard solar model, with a significant reduction in the discrepancy in sound speed between the Sun and local convection models. |
| 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] | TURBULENT CONVECTION ; SOLAR MODELS ; COMPRESSIBLE CONVECTION ; ZONE ; OSCILLATIONS ; HELIOSEISMOLOGY ; CONSTRAINTS ; DIFFUSION ; DEPLETION ; OVERSHOOT |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000310458900014 |
| 公开日期 | 2015-04-20 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/11218]  |
| 专题 | 紫金山天文台_院士文集_熊大闰 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China 4.Aarhus Univ, Dept Phys & Astron, Stellar Astrophys Ctr, DK-8000 Aarhus C, Denmark |
| 推荐引用方式 GB/T 7714 | Zhang, Chunguang,Deng, Licai,Xiong, Darun,et al. SOUND-SPEED INVERSION OF THE SUN USING A NONLOCAL STATISTICAL CONVECTION THEORY[J]. ASTROPHYSICAL JOURNAL LETTERS,2012,759(1):L14(5pp). |
| APA | Zhang, Chunguang,Deng, Licai,Xiong, Darun,&Christensen-Dalsgaard, Jorgen.(2012).SOUND-SPEED INVERSION OF THE SUN USING A NONLOCAL STATISTICAL CONVECTION THEORY.ASTROPHYSICAL JOURNAL LETTERS,759(1),L14(5pp). |
| MLA | Zhang, Chunguang,et al."SOUND-SPEED INVERSION OF THE SUN USING A NONLOCAL STATISTICAL CONVECTION THEORY".ASTROPHYSICAL JOURNAL LETTERS 759.1(2012):L14(5pp). |
入库方式： OAI收割
来源：紫金山天文台
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