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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
Source PublicationEPJ Web of Conferences - SEISMOLOGY OF THE SUN AND THE DISTANT STARS 2016-USING TODAY'S SUCCESSES TO PREPARE THE FUTURE
2017
Volume160
Pages1-4
DOI10.1051/epjconf/201716005004
Author of SourceMonteiro, MJPFG; Cunha, MS; Ferreira, JMTS
Contribution Rank第1完成单位
Indexed ByCPCI
Conference NameKepler-Asteroseismic-Science-Consortium (KASC) Workshop / TESS-Asteroseismic-Science-Consortium (TASC) / 8th SPACEINN and HELAS Conference
Conference Date2016-07-11
Conference PlacePORTUGAL
Conference SponsorKepler Asteroseism Sci Consortium; TESS Asteroseism Sci Consortium; SPACEINN; HELAS
Abstract

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.

Funding ProjectNSFC of China[11333006] ; NSFC of China[11503076] ; NSFC of China[11521303] ; Chinese Academy of Sciences[XDB09010202]
Funding OrganizationNSFC of China ; Chinese Academy of Sciences
Language英语
Subject Area恒星与银河系
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeProceedings Paper
PublisherEDP SCIENCES
Publication Place17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A, FRANCE
ISSN2100-014X
URL查看原文
WOS IDWOS:000426670400059
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordStellar ; Constraints
Citation statistics
Document Type会议论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/12116
Collection恒星物理研究组
中国科学院天体结构与演化重点实验室
Corresponding AuthorWu T(吴涛)
Affiliation1.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
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
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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