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Asteroseismic Analyses of Slowly Pulsating B Star KIC 8324482: Ultraweak Element Mixing beyond the Central Convective Core
Wu T(吴涛)1,2,3,4; Li Y(李焱)1,2,3,4; Deng, Zhen-min5; Lin GF(林桂芳)1,2,3; Song, Han-feng6; Jiang, Chen7
Source PublicationASTROPHYSICAL JOURNAL
2020-08-01
Volume899Issue:1Pages:17
DOI10.3847/1538-4357/aba430
Contribution Rank第1完成单位
Indexed BySCI
KeywordAsteroseismology Stellar interiors Stellar oscillations Stellar structures Fundamental parameters of stars Stellar rotation Stellar properties B stars
Abstract

Asteroseismology is a powerful tool for probing the inner structure and determining the evolutionary status and the fundamental parameters of stars. The oscillation spectra of slowly pulsating B (SPB) stars show almost uniform period spans, whose pattern is sensitive to the structure of the mu-gradient shell beyond the central convective core and hence can be used to efficiently describe their shapes and constrain the convective core. The SPB star KIC 8324482 was observed by Kepler for over 1470 days with a long-cadence pattern. Nearly equidistant period spacing patterns are found for the 14 connective dipolar modes that are extracted from the oscillation spectrum by Zhang et al. In the present work, we analyze them in depth with the chi(2)-matching method and determine their chi(2)-minimization models (CMMs). Based on those calculated CMMs, we find that KIC 8324482 is a young (

Funding ProjectB-type Strategic Priority Program - Chinese Academy of Sciences[XDB41000000] ; NSFC of China[11503076] ; NSFC of China[11773064] ; NSFC of China[11873084] ; NSFC of China[11973079] ; NSFC of China[11521303] ; NSFC of China[11833006] ; NSFC of China[11863003] ; Yunnan Applied Basic Research Projects[2017B008] ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Ten Thousand Talents Program of Yunnan for Top-notch Young Talents
Funding OrganizationB-type Strategic Priority Program - Chinese Academy of Sciences ; NSFC of China ; Yunnan Applied Basic Research Projects ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Ten Thousand Talents Program of Yunnan for Top-notch Young Talents
Language英语
Subject Area天文学 ; 恒星与银河系 ; 恒星物理学 ; 恒星形成与演化
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-637X
URL查看原文
WOS IDWOS:000561533900001
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordSTELLAR MASS ; GAMMA DORADUS ; MAIN-SEQUENCE ; DEPENDENCE ; EVOLUTION ; ROTATION ; MODES
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/23669
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, 396 Yangfangwang, Guandu District, Kunming, 650216, People's Republic of China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming, 650216, People's Republic of China
3.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012, People's Republic of China
4.University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
5.Yunnan University of Business Management, 296 Haitun, Wuhua District, Kunming, 650106, People's Republic of China
6.College of Physics, Guizhou University, Guiyang city, Guizhou Province, 550025, People's Republic of China
7.School of Physics and Astronomy, Sun Yat-Sen University, No. 135, Xingang Xi Road, Guangzhou, 510275, People's Republic of 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,Deng, Zhen-min,et al. Asteroseismic Analyses of Slowly Pulsating B Star KIC 8324482: Ultraweak Element Mixing beyond the Central Convective Core[J]. ASTROPHYSICAL JOURNAL,2020,899(1):17.
APA Wu T,Li Y,Deng, Zhen-min,Lin GF,Song, Han-feng,&Jiang, Chen.(2020).Asteroseismic Analyses of Slowly Pulsating B Star KIC 8324482: Ultraweak Element Mixing beyond the Central Convective Core.ASTROPHYSICAL JOURNAL,899(1),17.
MLA Wu T,et al."Asteroseismic Analyses of Slowly Pulsating B Star KIC 8324482: Ultraweak Element Mixing beyond the Central Convective Core".ASTROPHYSICAL JOURNAL 899.1(2020):17.
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