modelingeriandasteroseismictestsofelementdiffusion
文献类型：期刊论文
| 作者 | Ning Gai1; ShaoLan Bi2; YanKe Tang1 |
| 刊名 | chinesejournalofastronomyandastrophysics
 |
| 出版日期 | 2008 |
| 卷号 | 8期号:5页码:591 |
| ISSN号 | 1009-9271 |
| 英文摘要 | Taking into account the helium and metal diffusion, we explore the possible evolutionary status with a seismic analysis, of the MOST (Microvariability and Oscillations of STars) target: the star Eri. We adopt different input parameters to construct models to fit the available observational constraints in, e.g., T_(eff), L, R and Fe/H. From the computation we obtain the average large spacings of Eri to be about 194±1 μHz. The age of the diffused models was found to be about 1 Gyr, which is younger than the age determined previously by models without diffusion. We found that the effect of pure helium diffusion on the internal structure of the young low-mass star is slight, but that of metal diffusion is obvious. The metal diffusion leads the models to have much higher temperature in the radiative interior, and, correspondingly a higher sound speed there, hence a larger frequency and spacings. |
| 语种 | 英语 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/39927]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.中国科学院国家天文台 2.北京师范大学 |
| 推荐引用方式 GB/T 7714 | Ning Gai,ShaoLan Bi,YanKe Tang. modelingeriandasteroseismictestsofelementdiffusion[J]. chinesejournalofastronomyandastrophysics,2008,8(5):591. |
| APA | Ning Gai,ShaoLan Bi,&YanKe Tang.(2008).modelingeriandasteroseismictestsofelementdiffusion.chinesejournalofastronomyandastrophysics,8(5),591. |
| MLA | Ning Gai,et al."modelingeriandasteroseismictestsofelementdiffusion".chinesejournalofastronomyandastrophysics 8.5(2008):591. |
入库方式： OAI收割
来源：国家天文台
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