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Misclassified B Stars in the Kepler Field

文献类型：期刊论文

作者Zhang, Chunguang1; Liu, Chao1; Wu, Yue1; Luo, Yangping2; Zhang, Xiaobin1; Deng, Licai1; Fu, Jianning3; Zhang, Yong4; Hou, Yonghui4; Wang, Yuefei4
刊名ASTROPHYSICAL JOURNAL
出版日期2018-02-20
卷号854期号:2页码:12
关键词stars: early-type stars: fundamental parameters stars: oscillations (including pulsations)
ISSN号0004-637X
DOI10.3847/1538-4357/aaaae0
英文摘要Stellar fundamental parameters are important in the asteroseismic study of Kepler light curves. However, the most used estimates in the Kepler Input Catalog (KIC) are not accurate enough for hot stars. Using a sample of B stars from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) spectral survey, we confirmed the systematic underestimation in the KIC effective temperature and overestimation in KIC surface gravity. The good agreement between LAMOST and other follow-up observations proved the accuracy of effective temperature and surface gravity of B stars derived from LAMOST low-resolution spectra. By searching through LAMOST data, we found four misclassified main-sequence B stars in the Kepler field, which had been previously classified as A-type variables. We present spectroscopic and detailed frequency analysis of these four stars based on LAMOST spectra and Kepler photometry.
WOS关键词GAMMA DORADUS STARS ; DELTA-SCUTI STARS ; ORDER G-MODES ; COMBINATION FREQUENCIES ; AMPLITUDE-MODULATION ; SPECTRUM ANALYSIS ; TELESCOPE LAMOST ; GRAVITY MODES ; MASSIVE STAR ; F-STARS
资助项目National Natural Science Foundation of China (NSFC)[11403039] ; National Natural Science Foundation of China (NSFC)[11633005] ; National Natural Science Foundation of China (NSFC)[11373032] ; National Natural Science Foundation of China (NSFC)[11333003] ; National Natural Science Foundation of China (NSFC)[11403056] ; NSFC[U1231119] ; NSFC[U1231202] ; Chinese Academy of Sciences (CAS)[U1231119] ; Chinese Academy of Sciences (CAS)[U1231202] ; National Astronomical Observatories, CAS (NAOC) ; CAS[XDB09000000] ; National Basic Research Program of China (973 Program)[2014CB845700] ; National Basic Research Program of China (973 Program)[2013CB834900] ; National Development and Reform Commission
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000425961400005
出版者IOP PUBLISHING LTD
资助机构National Natural Science Foundation of China (NSFC) ; NSFC ; Chinese Academy of Sciences (CAS) ; National Astronomical Observatories, CAS (NAOC) ; CAS ; National Basic Research Program of China (973 Program) ; National Development and Reform Commission ; National Natural Science Foundation of China (NSFC) ; NSFC ; Chinese Academy of Sciences (CAS) ; National Astronomical Observatories, CAS (NAOC) ; CAS ; National Basic Research Program of China (973 Program) ; National Development and Reform Commission ; National Natural Science Foundation of China (NSFC) ; NSFC ; Chinese Academy of Sciences (CAS) ; National Astronomical Observatories, CAS (NAOC) ; CAS ; National Basic Research Program of China (973 Program) ; National Development and Reform Commission ; National Natural Science Foundation of China (NSFC) ; NSFC ; Chinese Academy of Sciences (CAS) ; National Astronomical Observatories, CAS (NAOC) ; CAS ; National Basic Research Program of China (973 Program) ; National Development and Reform Commission
源URL[http://ir.bao.ac.cn/handle/114a11/35720]  
专题中国科学院国家天文台
通讯作者Zhang, Chunguang
作者单位1.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100101, Peoples R China
2.China West Normal Univ, Phys & Space Sci Coll, Nanchong 637002, Peoples R China
3.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China
4.Chinese Acad Sci, Natl Astron Observ, Nanjing Inst Astron Opt & Technol, Nanjing 210042, Jiangsu, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Chunguang,Liu, Chao,Wu, Yue,et al. Misclassified B Stars in the Kepler Field[J]. ASTROPHYSICAL JOURNAL,2018,854(2):12.
APA Zhang, Chunguang.,Liu, Chao.,Wu, Yue.,Luo, Yangping.,Zhang, Xiaobin.,...&Wang, Yuefei.(2018).Misclassified B Stars in the Kepler Field.ASTROPHYSICAL JOURNAL,854(2),12.
MLA Zhang, Chunguang,et al."Misclassified B Stars in the Kepler Field".ASTROPHYSICAL JOURNAL 854.2(2018):12.

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来源：国家天文台

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