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Observational Properties of 155 O- and B-type Massive Pulsating Stars

文献类型：期刊论文

作者Shi XD(施相东)1,2,3; Qian SB(钱声帮)1,2,3; Zhu LY(朱俐颖)1,2,3; Liu L(刘亮)1,2,3; Li LJ(李临甲)1,3; Zang L(臧蕾)1,2,3
刊名ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
出版日期2023-04-01
卷号265期号:2
ISSN号0067-0049
DOI10.3847/1538-4365/acba91
产权排序第1完成单位
文献子类Article
英文摘要O- and B-type (OB-type) pulsating stars are important objects for studying the structure and evolution of massive stars through asteroseismology. A large amount of data from various sky surveys provides an unprecedented opportunity to search for and study this kind of variable star. We identify 155 OB-type pulsating stars or candidates, including 38 Oe/Be stars or candidates, from the data observed by TESS, LAMOST, and Gaia, which are almost new. Among the 155 objects, 87 samples are identified as slowly pulsating B (SPB) stars including 37 objects with pure low-frequency and 50 objects with both low- and high-frequency pulsation, and 14 samples are identified as beta Cephei pulsating variable (BCEP) stars with both low- and high-frequency pulsation. An H-R diagram shows that these SPB and BCEP stars are mainly located in their instability regions and in the evolutionary stage of the main sequence with mass ranges of 2.5-20 M (circle dot) and 7-20 M (circle dot), respectively. Two special objects show Fourier spectra similar to BCEP stars but with different positions in H-R, period-temperature (P-T), and period-luminosity (P-L) diagrams. Meanwhile, 52 other targets are identified as candidates of OB-type pulsating stars. We also derive the preliminary results of the P-L relation for SPB and BCEP stars, respectively. This work also indicates that in addition to the H-R diagram, the P-T and P-L diagrams are also very useful for the classification of SPB and BCEP stars. Further detailed analysis of these objects can dramatically increase our understanding of the theories of evolution and structure for massive OB-type pulsating stars.
学科主题天文学 ; 恒星与银河系 ; 恒星形成与演化
URL标识查看原文
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
WOS关键词ORDER G-MODES ; BOLOMETRIC CORRECTIONS ; CONVECTIVE BOUNDARIES ; PHYSICAL-PROPERTIES ; MODULES ; LAMOST ; BINARY ; TELESCOPE ; SPECTRA ; TEMPERATURES
资助项目Chinese Natural Science Foundation[11933008] ; Chinese Natural Science Foundation[12103084] ; Chinese Natural Science Foundation[12273103] ; basic research project of Yunnan Province[202201AT070092] ; NASA Explorer Program
WOS研究方向Astronomy & Astrophysics
语种英语
出版者IOP Publishing Ltd
WOS记录号WOS:000949936200001
资助机构Chinese Natural Science Foundation[11933008, 12103084, 12273103] ; basic research project of Yunnan Province[202201AT070092] ; NASA Explorer Program
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/25880]  
专题云南天文台_双星与变星研究组
云南天文台_中国科学院天体结构与演化重点实验室
通讯作者Shi XD(施相东)
作者单位1.Key Laboratory of the Structure and Evolution of Celestial Objects, CAS, Kunming 650216, People's Republic of China
2.University of Chinese Academy of Sciences, No. 1 Yanqihu East Road, Huairou District, Beijing 101408, People's Republic of China;
3.Yunnan Observatories, Chinese Academy of Sciences (CAS), P. O. Box 110, Kunming 650216, People's Republic of China; sxd@ynao.ac.cn;
推荐引用方式
GB/T 7714		 Shi XD,Qian SB,Zhu LY,et al. Observational Properties of 155 O- and B-type Massive Pulsating Stars[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2023,265(2).
APA Shi XD,Qian SB,Zhu LY,Liu L,Li LJ,&Zang L.(2023).Observational Properties of 155 O- and B-type Massive Pulsating Stars.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,265(2).
MLA Shi XD,et al."Observational Properties of 155 O- and B-type Massive Pulsating Stars".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 265.2(2023).

入库方式： OAI收割

来源：云南天文台

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