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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)3,4,5,6; Li Y(李焱)3,4,5,6; Deng, Zhen-min2; Lin GF(林桂芳)4,5,6; Song, Han-feng1; Jiang, Chen7
刊名ASTROPHYSICAL JOURNAL
2020-08-01
卷号899期号:1页码:17
关键词Asteroseismology Stellar interiors Stellar oscillations Stellar structures Fundamental parameters of stars Stellar rotation Stellar properties B stars
ISSN号0004-637X
DOI10.3847/1538-4357/aba430
产权排序第1完成单位
文献子类Article
英文摘要

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 (

学科主题天文学 ; 恒星与银河系 ; 恒星物理学 ; 恒星形成与演化
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出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
资助项目B-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
WOS关键词STELLAR MASS ; GAMMA DORADUS ; MAIN-SEQUENCE ; DEPENDENCE ; EVOLUTION ; ROTATION ; MODES
WOS研究方向Astronomy & Astrophysics
语种英语
出版者IOP PUBLISHING LTD
WOS记录号WOS:000561533900001
资助机构B-type Strategic Priority Program - Chinese Academy of Sciences[XDB41000000] ; NSFC of China[11503076, 11773064, 11873084, 11973079, 11521303, 11833006, 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
内容类型期刊论文
源URL[http://ir.ynao.ac.cn/handle/114a53/23668]  
专题云南天文台_恒星物理研究组
通讯作者Wu T(吴涛)
作者单位1.College of Physics, Guizhou University, Guiyang city, Guizhou Province, 550025, People's Republic of China
2.Yunnan University of Business Management, 296 Haitun, Wuhua District, Kunming, 650106, People's Republic of China
3.University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
4.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012, People's Republic of China
5.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
6.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming, 650216, 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
推荐引用方式
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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