A fast-rotating blue straggler star in the tidal tail of the open cluster NGC 752

doi:10.1051/0004-6361/202449393

YNAO OpenIR > 大样本恒星演化研究组

	A fast-rotating blue straggler star in the tidal tail of the open cluster NGC 752
	Li, Chunyan 1,2; Zhong, Jing 1; Qin, Songmei 1,2; Jiang DK(姜登凯)2,3,4 ; Shan, Xingmei 5; Chen, Li 1,2
发表期刊	ASTRONOMY & ASTROPHYSICS
	2024-06-13
卷号	686
DOI	10.1051/0004-6361/202449393
产权排序	第3完成单位
收录类别	SCI ; EI
关键词	blue stragglers open clusters and associations: individual: NGC 752
摘要	Context. NGC 752 is a well-known Galactic open cluster of intermediate age. In recent works, a very long and asymmetric tail was revealed. A blue straggler star (BSS) at the periphery of the tidal tail of the cluster was subsequently identified. Aims. We aim to perform a detailed analysis of the newly detected BSS based on the available comprehensive spectroscopic and photometric data. We also explored this BSS's possible formation pathway and age limitation based on the collected spectroscopic and photometric data. Methods. We reconfirmed the membership of the newly determined BSS of NGC 752, supplemented by Gaia DR3 radial velocity data. Moreover, we also estimated the projected rotational velocity and the mass of the BSS from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope low-resolution spectra and multiband photometric data from various catalogs, respectively. Results. The newly discovered BSS is confirmed as a genuine member of NGC 752. The lack of ultraviolet excess in the spectral energy distribution and no significant variations in the light curve imply that this BSS is likely a single star (mass = 1.86(-0.94)(+3.62) M-circle dot) formed through stellar mergers. The fast rotation velocity (v sin i = 206.9 +/- 4.9 km s(-1)) of the BSS may provide constraints on its age (less than a hundred million years), but more formation details require further investigation.
资助项目	the National Natural Science Foundation of China[12090040]; the National Natural Science Foundation of China[12090042]; the National Natural Science Foundation of China[12073060]; National Natural Science Foundation of China (NSFC); Youth Innovation Promotion Association CAS[CMS-CSST-2021-A08]; China Manned Space Project[22dz1202400]; Science and Technology Commission of Shanghai Municipality[2021YFA1600403]; National Key R&D Program of China[12073070]; National Key R&D Program of China[12333008]; National Key R&D Program of China[12288102]; National Key R&D Program of China[12090040/3]; National Natural Science Foundation of China[202302AN360001]; International Centre of Supernovae, Yunnan Key Laboratory[202305AB350003]; Yunnan Revitalization Talent Support Program - Science & Technology Champion Project[202201BC070003]; Yunnan Revitalization Talent Support Program - Science & Technology Champion Project[202401BC070007]; Yunnan Ten Thousand Talents Plan Young & Elite Talents Project, and Yunnan Fundamental Research Project[202304910547]; China Scholarship Council program; Guoshoujing Telescope (the Large Sky Area Multi-Object Fiber Spectroscopic Telescope LAMOST); National Development and Reform Commission; Chinese Academy of Sciences; NASA Explorer Program[NAS 526555]; NASA
项目资助者	the National Natural Science Foundation of China[12090040, 12090042, 12073060] ; National Natural Science Foundation of China (NSFC) ; Youth Innovation Promotion Association CAS[CMS-CSST-2021-A08] ; China Manned Space Project[22dz1202400] ; Science and Technology Commission of Shanghai Municipality[2021YFA1600403] ; National Key R&D Program of China[12073070, 12333008, 12288102, 12090040/3] ; National Natural Science Foundation of China[202302AN360001] ; International Centre of Supernovae, Yunnan Key Laboratory[202305AB350003] ; Yunnan Revitalization Talent Support Program - Science & Technology Champion Project[202201BC070003, 202401BC070007] ; Yunnan Ten Thousand Talents Plan Young & Elite Talents Project, and Yunnan Fundamental Research Project[202304910547] ; China Scholarship Council program ; Guoshoujing Telescope (the Large Sky Area Multi-Object Fiber Spectroscopic Telescope LAMOST) ; National Development and Reform Commission ; Chinese Academy of Sciences ; NASA Explorer Program[NAS 526555] ; NASA
语种	英语
学科领域	天文学 ; 恒星与银河系
文章类型	Article
出版者	EDP SCIENCES S A
出版地	17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A, FRANCE
ISSN	0004-6361
URL	查看原文
WOS记录号	WOS:001246762400012
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	LIGHT-ION SPECTRA ; GLOBULAR-CLUSTERS ; MASS-TRANSFER ; STELLAR COLLISIONS ; MAIN-SEQUENCE ; SOLAR NEIGHBORHOOD ; TIME-SERIES ; BINARY STAR ; PARAMETERS ; I.
EI入藏号	20242516290847
EI主题词	Stars
EI分类号	657.2 Extraterrestrial Physics and Stellar Phenomena - 801 Chemistry - 941.4 Optical Variables Measurements
引用统计
文献类型	期刊论文
版本	出版稿
条目标识符	http://ir.ynao.ac.cn/handle/114a53/27406
专题	大样本恒星演化研究组
作者单位	1.Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030, PR China; 2.School of Astronomy and Space Science, University of Chinese Academy of Sciences, No. 19A, Yuquan Road, Beijing 100049, PR China; 3.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming 650216, PR China; 4.International Centre of Supernovae, Yunnan Key Laboratory, Kunming 650216, PR China; 5.Shanghai Science and Technology Museum, No. 2000 Century Avenue, Pudong New Area, Shanghai 200127, PR China
推荐引用方式 GB/T 7714	Li, Chunyan,Zhong, Jing,Qin, Songmei,et al. A fast-rotating blue straggler star in the tidal tail of the open cluster NGC 752[J]. ASTRONOMY & ASTROPHYSICS,2024,686.
APA	Li, Chunyan,Zhong, Jing,Qin, Songmei,姜登凯,Shan, Xingmei,&Chen, Li.(2024).A fast-rotating blue straggler star in the tidal tail of the open cluster NGC 752.ASTRONOMY & ASTROPHYSICS,686.
MLA	Li, Chunyan,et al."A fast-rotating blue straggler star in the tidal tail of the open cluster NGC 752".ASTRONOMY & ASTROPHYSICS 686(2024).

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