NEW ASTEROSEISMIC SCALING RELATIONS BASED ON THE HAYASHI TRACK RELATION APPLIED TO RED GIANT BRANCH STARS IN NGC 6791 AND NGC 6819
文献类型：期刊论文
| 作者 | Wu T(吴涛)1,2,3 ; Li Y(李焱)1,2; Hekker, S4,5
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2014-01-20 |
| 卷号 | 781期号:1页码:44-54 |
| 关键词 | asteroseismology open clusters and associations: individual (NGC 6791, NGC 6819) stars: fundamental parameters stars: interiors stars: late-type stars: oscillations |
| ISSN号 | 0004-637X |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Wu, T (reprint author), Chinese Acad Sci, Yunnan Observ, POB 110, Kunming 650011, Peoples R China. |
| 英文摘要 | Stellar mass M, radius R, and gravity g are important basic parameters in stellar physics. Accurate values for these parameters can be obtained from the gravitational interaction between stars in multiple systems or from asteroseismology. Stars in a cluster are thought to be formed coevally from the same interstellar cloud of gas and dust. The cluster members are therefore expected to have some properties in common. These common properties strengthen our ability to constrain stellar models and asteroseismically derived M, R, and g when tested against an ensemble of cluster stars. Here we derive new scaling relations based on a relation for stars on the Hayashi track (root T-eff similar to g(p)R(q)) to determine the masses and metallicities of red giant branch stars in open clusters NGC 6791 and NGC 6819 from the global oscillation parameters Delta nu (the large frequency separation) and nu(max) (frequency of maximum oscillation power). The Delta nu and nu(max) values are derived from Kepler observations. From the analysis of these new relations we derive: (1) direct observational evidence that the masses of red giant branch stars in a cluster are the same within their uncertainties, (2) new methods to derive M and z of the cluster in a self-consistent way from Delta nu and nu(max), with lower intrinsic uncertainties, and (3) the mass dependence in the Delta nu - nu(max) relation for red giant branch stars. |
| 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] | SOLAR-LIKE OSCILLATIONS ; COLOR-MAGNITUDE DIAGRAMS ; 1ST 4 MONTHS ; OPEN CLUSTERS ; ECLIPSING BINARY ; KEPLER DATA ; K-GIANTS ; BOLOMETRIC CORRECTIONS ; GLOBULAR-CLUSTER ; HELIUM CONTENT |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/article/10.1088/0004-637X/781/1/44/meta |
| 语种 | 英语 |
| WOS记录号 | WOS:000329436100044 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/5243]  |
| 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, P.O. Box 110, Kunming 650011, China 2.Key Laboratory for Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, P.O. Box 110, Kunming 650011, China 3.University of Chinese Academy of Sciences, Beijing 100039, China 4.Max Planck Institute for Solar System Research, Max Planck Strasse 2, D-37191 Katlenburg-Lindau, Germany 5.Astronomical Institute "Anton Pannekoek," University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands |
| 推荐引用方式 GB/T 7714 | Wu T,Li Y,Hekker, S. NEW ASTEROSEISMIC SCALING RELATIONS BASED ON THE HAYASHI TRACK RELATION APPLIED TO RED GIANT BRANCH STARS IN NGC 6791 AND NGC 6819[J]. ASTROPHYSICAL JOURNAL,2014,781(1):44-54. |
| APA | Wu T,Li Y,&Hekker, S.(2014).NEW ASTEROSEISMIC SCALING RELATIONS BASED ON THE HAYASHI TRACK RELATION APPLIED TO RED GIANT BRANCH STARS IN NGC 6791 AND NGC 6819.ASTROPHYSICAL JOURNAL,781(1),44-54. |
| MLA | Wu T,et al."NEW ASTEROSEISMIC SCALING RELATIONS BASED ON THE HAYASHI TRACK RELATION APPLIED TO RED GIANT BRANCH STARS IN NGC 6791 AND NGC 6819".ASTROPHYSICAL JOURNAL 781.1(2014):44-54. |
入库方式： OAI收割
来源：云南天文台
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