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

doi:10.3847/1538-4365/acba91

YNAO OpenIR > 双星与变星研究组

	Observational Properties of 155 O- and B-type Massive Pulsating Stars
	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
发表期刊	ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
	2023-04-01
卷号	265 期号:2
DOI	10.3847/1538-4365/acba91
产权排序	第1完成单位
收录类别	SCI
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.
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
项目资助者	Chinese Natural Science Foundation[11933008, 12103084, 12273103] ; basic research project of Yunnan Province[202201AT070092] ; NASA Explorer Program
语种	英语
学科领域	天文学 ; 恒星与银河系 ; 恒星形成与演化
文章类型	Article
出版者	IOP Publishing Ltd
出版地	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN	0067-0049
URL	查看原文
WOS记录号	WOS:000949936200001
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	ORDER G-MODES ; BOLOMETRIC CORRECTIONS ; CONVECTIVE BOUNDARIES ; PHYSICAL-PROPERTIES ; MODULES ; LAMOST ; BINARY ; TELESCOPE ; SPECTRA ; TEMPERATURES
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
版本	出版稿
条目标识符	http://ir.ynao.ac.cn/handle/114a53/25880
专题	双星与变星研究组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.Yunnan Observatories, Chinese Academy of Sciences (CAS), P. O. Box 110, Kunming 650216, People's Republic of China; [email protected]; 2.University of Chinese Academy of Sciences, No. 1 Yanqihu East Road, Huairou District, Beijing 101408, People's Republic of China; 3.Key Laboratory of the Structure and Evolution of Celestial Objects, CAS, Kunming 650216, People's Republic of China
第一作者单位	中国科学院云南天文台
通讯作者单位	中国科学院云南天文台
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).

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