Asteroseismology of DAV white dwarf stars and G29-38
文献类型：期刊论文
| 作者 | Chen YH(陈彦辉)1,2,3 ; Li Y(李焱)1,2
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| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2013-12 |
| 卷号 | 13期号:12页码:1438-1444 |
| 关键词 | stars: oscillations (including pulsations) stars: individual (G29-38) white dwarfs |
| ISSN号 | 1674-4527 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Chen, YH (reprint author), Chinese Acad Sci, Yunnan Astron Observ, Kunming 650011, Peoples R China. |
| 英文摘要 | Asteroseismology is a powerful tool used for detecting the inner structure of stars, which is also widely used to study white dwarfs. We discuss the asteroseismology of DAV stars. The period-to-period fitting method is discussed in detail, including its reliability in detecting the inner structure of DAV stars. If we assume that all observed modes of some DAV stars are the l = 1 cases, the errors associated with model fitting will be always large. If we assume that the observed modes are composed of l = 1 and 2 modes, the errors associated with model fitting in this case will be small. However, there will be modes identified as l = 2 that do not have observed quintuplets. G29-38 has been observed spectroscopically and photometrically for many years. Thompson et al. made l modes identifications in the star through the limb darkening effect. With 11 known l modes, we also study the asteroseismology of G29-38, which reduces the blind l fittings and is a fair choice. Unfortunately, our two best-fitting models are not in line with the previous atmospheric results. Based on factors like only a few observed modes, stability and identification of eigenmodes, identification of spherical degrees, construction of physical and realistic models and so on, detecting the inner structure of DAV stars by asteroseismology needs further development. |
| 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] | ZZ-CETI STARS ; EARTH TELESCOPE OBSERVATIONS ; EVOLUTIONARY MODELS ; PULSATION ; SPECTROSCOPY ; CONSTRAINTS ; IDENTIFICATION ; TEMPERATURE ; ENVELOPES ; STATE |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/article/10.1088/1674-4527/13/12/004/meta |
| 语种 | 英语 |
| WOS记录号 | WOS:000327875500004 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/5228]  |
| 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 Astronomical Observatory, 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 | Chen YH,Li Y. Asteroseismology of DAV white dwarf stars and G29-38[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2013,13(12):1438-1444. |
| APA | Chen YH,&Li Y.(2013).Asteroseismology of DAV white dwarf stars and G29-38.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,13(12),1438-1444. |
| MLA | Chen YH,et al."Asteroseismology of DAV white dwarf stars and G29-38".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 13.12(2013):1438-1444. |
入库方式： OAI收割
来源：云南天文台
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