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

文献类型：期刊论文

作者Li, Chunyan4,5; Zhong, Jing5; Qin, Songmei4,5; Jiang DK(姜登凯)2,3,4; Shan, Xingmei1; Chen, Li4,5
刊名ASTRONOMY & ASTROPHYSICS
出版日期2024-06-13
卷号686
关键词blue stragglers open clusters and associations: individual: NGC 752
ISSN号0004-6361
DOI10.1051/0004-6361/202449393
产权排序第3完成单位
文献子类Article
英文摘要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.
学科主题天文学 ; 恒星与银河系
URL标识查看原文
出版地17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A, FRANCE
WOS关键词LIGHT-ION SPECTRA ; GLOBULAR-CLUSTERS ; MASS-TRANSFER ; STELLAR COLLISIONS ; MAIN-SEQUENCE ; SOLAR NEIGHBORHOOD ; TIME-SERIES ; BINARY STAR ; PARAMETERS ; I.
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
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001246762400012
出版者EDP SCIENCES S A
资助机构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
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/27406]  
专题云南天文台_大样本恒星演化研究组
作者单位1.Shanghai Science and Technology Museum, No. 2000 Century Avenue, Pudong New Area, Shanghai 200127, PR China
2.International Centre of Supernovae, Yunnan Key Laboratory, Kunming 650216, PR China;
3.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming 650216, PR China;
4.School of Astronomy and Space Science, University of Chinese Academy of Sciences, No. 19A, Yuquan Road, Beijing 100049, PR China;
5.Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030, 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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来源：云南天文台

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