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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; Wu, T, Chinese Acad Sci, Yunnan Observ, POB 110, Kunming 650216, Yunnan, Peoples R China.
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
DOI10.1051/epjconf/201716005004
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
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.
项目资助者NSFC of China (11333006,11503076,11521303) ; Chinese Academy of Sciences(XDB09010202) ; NSFC of China (11333006,11503076,11521303) ; Chinese Academy of Sciences(XDB09010202)
语种英语
学科领域恒星与银河系
文章类型Proceedings Paper
出版者EDP SCIENCES, 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A
出版地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
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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, Chinese Acad Sci, Yunnan Observ, POB 110, Kunming 650216, Yunnan, Peoples R China.
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
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Wu T,Li Y,Wu, T, Chinese Acad Sci, Yunnan Observ, POB 110, Kunming 650216, Yunnan, Peoples R China.. New Insights of High-precision Asteroseismology: Acoustic Radius and chi(2)-matching Method for Solar-like Oscillator KIC 6225718[C]. FRANCE:EDP SCIENCES, 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,2017:1-4.
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