New Insights of High-precision Asteroseismology: Acoustic Radius and chi(2)-matching Method for Solar-like Oscillator KIC 6225718 | |
Wu T(吴涛)1,2; Li Y(李焱)1,2 | |
会议录名称 | EPJ Web of Conferences - SEISMOLOGY OF THE SUN AND THE DISTANT STARS 2016-USING TODAY'S SUCCESSES TO PREPARE THE FUTURE |
2017 | |
卷号 | 160 |
页码 | 1-4 |
DOI | 10.1051/epjconf/201716005004 |
会议录编者/会议主办者 | Monteiro, MJPFG; Cunha, MS; Ferreira, JMTS |
产权排序 | 第1完成单位 |
收录类别 | CPCI |
会议名称 | Kepler-Asteroseismic-Science-Consortium (KASC) Workshop / TESS-Asteroseismic-Science-Consortium (TASC) / 8th SPACEINN and HELAS Conference |
会议日期 | 2016-07-11 |
会议地点 | PORTUGAL |
会议赞助商 | Kepler Asteroseism Sci Consortium; TESS Asteroseism Sci Consortium; SPACEINN; HELAS |
摘要 | Asteroseismology is a powerful tool for probing stellar interiors and determining stellar fundamental parameters. In the present work, we adopt theme chi(2)-minimization method but only use the observed high-precision seismic observations (i.e., oscillation frequencies) to constrain theoretical models for analyzing solar-like oscillator KIC 6225718. Finally, we find the acoustic radius To is the only global parameter that can be accurately measured by theme chi(2)-matching method between observed frequencies and theoretical model calculations for a pure p-mode oscillation star. We obtain tau(o) = 4601.5(-8.3)(+4.4) seconds for KIC 6225718. It leads that the mass and radius of the CMMs are degenerate with each other. In addition, we find that the distribution range of acoustic radius is slightly enlarged by some extreme cases, which posses both a larger mass and a higher (or lower) metal abundance, at the lower acoustic radius end. |
资助项目 | NSFC of China[11333006] ; NSFC of China[11503076] ; NSFC of China[11521303] ; Chinese Academy of Sciences[XDB09010202] |
项目资助者 | NSFC of China ; Chinese Academy of Sciences |
语种 | 英语 |
学科领域 | 恒星与银河系 |
学科门类 | 理学 ; 理学::天文学 |
文章类型 | Proceedings Paper |
出版者 | EDP SCIENCES |
出版地 | 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A, FRANCE |
ISSN号 | 2100-014X |
URL | 查看原文 |
WOS记录号 | WOS:000426670400059 |
WOS研究方向 | Astronomy & Astrophysics |
WOS类目 | Astronomy & Astrophysics |
关键词[WOS] | Stellar ; Constraints |
引用统计 | |
文献类型 | 会议论文 |
条目标识符 | http://ir.ynao.ac.cn/handle/114a53/12116 |
专题 | 恒星物理研究组 中国科学院天体结构与演化重点实验室 |
通讯作者 | Wu T(吴涛) |
作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, P.O. Box 110, Kunming 650216, China 2.Key Laboratory for Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, P.O. Box 110, Kunming 650216, China |
第一作者单位 | 中国科学院云南天文台 |
通讯作者单位 | 中国科学院云南天文台 |
推荐引用方式 GB/T 7714 | Wu T,Li Y. New Insights of High-precision Asteroseismology: Acoustic Radius and chi(2)-matching Method for Solar-like Oscillator KIC 6225718[C]//Monteiro, MJPFG; Cunha, MS; Ferreira, JMTS. 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A, FRANCE:EDP SCIENCES,2017:1-4. |
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