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When LAMOST meets Gaia DR3 Exploring the metallicity of open clusters

文献类型：期刊论文

作者Zhang RY(张汝媛)11; Wang, Guo-Jian6,7; Lu, Yuxi5; Guo SF(郭素芬)10,11; Lucatello, Sara2,9; Fu, Xiaoting1; Wang, Haifeng8; Wang LQ(王璐茜)11; Schiappacasse, José8,9; Chen, Jianxing3,4
刊名ASTRONOMY & ASTROPHYSICS
出版日期2024-12-13
卷号692
关键词stars: abundances stars: evolution galaxies: star clusters: general
ISSN号0004-6361
DOI10.1051/0004-6361/202450726
产权排序第1完成单位
文献子类Article
英文摘要Context. Open clusters (OCs) are excellent probes as their age and abundance can be tightly constrained, allowing us to explore the distribution of metallicity and composition across the disk of the Milky Way. By conducting a comprehensive analysis of the metallicity of OCs, we can obtain valuable information about the history of their chemical enrichment. Moreover, by observing stars in different regions of the Milky Way, we can identify significant spatial structures in their chemical composition and abundance. This enables us to understand stellar birth radii through chemical tagging. Nevertheless, it remains challenging to infer the original positions of OCs using current data alone. Aims. The aim of this study is to investigate the distribution of metallicity in the solar neighborhood using a large dataset from Gaia DR3 combined with LAMOST spectra. With accurate ages and metallicity measurements, we can determine birth radii for the stars and attempt to understand their migration pattern. Methods. We chose a total of 1131 OCs within 3 kpc of the Sun from the Gaia DR3 and LAMOST DR8 low-resolution spectral database (R=1800). We used an artificial neural network to correct the LAMOST data by incorporating high-resolution spectral data from GALAH DR3 (R=28 000). The average metallicity of the OCs was determined based on the reliable [Fe/H] values for their members. We then examined the distribution of metallicity across different regions within the Galaxy and inferred birth radii of the OCs from their age and metallicity. Results. The correction method presented here can partially eliminate the systematic offset for LAMOST data. We discuss the metal- licity trend as a function of Galactocentric distance and the guiding radii. We also compare these observational results with those from chemo-dynamic simulations. Values derived from observational metallicity data are slightly lower than predicted values when the uncertainties are not considered. However, the metallicity gradients are consistent with previous calculations. Finally, we investigated the birthplace of OCs and find hints that the majority of OCs near the Sun have migrated from the outer Galactic disk.
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OLD OPEN CLUSTERS ; MILKY-WAY DISK ; POPULATION ASTROPHYSICS SPA ; LIKELIHOOD-FREE INFERENCE ; 1ST DATA RELEASE ; CHEMICAL ABUNDANCES ; FE/H DETERMINATIONS ; RADIAL MIGRATION ; CHEMODYNAMICAL EVOLUTION ; ATMOSPHERIC PARAMETERS
资助项目Africa Europe Cluster of Research Excellence (CoRE-AI) fellowship; Department of Physics and Astronomy of Padova University[2022 ARPE]; Postdoctoral Fellowship Program of CPSF[GZC20240124]; National Development and Reform Commission; Chinese Academy of Sciences; National Natural Science Foundation of China[12090040]; National Natural Science Foundation of China[12090043]; National Natural Science Foundation of China[12003025]; Basic Research Program of Yunnan Province[202401AT070142]; International Centre of Supernovae, Yunnan Key Laboratory[202302AN360001]; Natural Science Foundation of Yunnan Province[202201BC070003]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001441922300006
出版者EDP SCIENCES S A
资助机构Africa Europe Cluster of Research Excellence (CoRE-AI) fellowship ; Department of Physics and Astronomy of Padova University[2022 ARPE] ; Postdoctoral Fellowship Program of CPSF[GZC20240124] ; National Development and Reform Commission ; Chinese Academy of Sciences ; National Natural Science Foundation of China[12090040, 12090043, 12003025] ; Basic Research Program of Yunnan Province[202401AT070142] ; International Centre of Supernovae, Yunnan Key Laboratory[202302AN360001] ; Natural Science Foundation of Yunnan Province[202201BC070003]
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/28220]  
专题云南天文台_大样本恒星演化研究组
作者单位1.Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
2.Institute for Advanced Studies, Technische Universität München, Lichtenbergstraße 2 a, 85748 Garching bei München, Germany;
3.School of Physics and Astronomy, Beijing Normal University, Beijing 100875, PR China;
4.Institute for Frontiers in Astronomy and Astrophysics, Beijing Normal University, Beijing 102206, PR China;
5.Astrophysics Department, American Museum of Natural History, Central Park West, New York, NY 10024, USA;
6.National Institute for Theoretical and Computational Sciences (NITheCS), Stellenbosch, South Africa;
7.Department of Physics, Stellenbosch University, Matieland 7602, Stellenbosch, South Africa;
8.Dipartimento di Fisica e Astronomia “Galileo Galilei”, Universita di Padova, Vicolo Osservatorio 3, 35122 Padova, Italy;
9.INAF-Osservatorio Astronomico di Padova, vicolo Osservatorio 5, 35122 Padova, Italy;
10.School of Physical Science and Technology, Xinjiang University, Urumqi 830046, PR China;
推荐引用方式
GB/T 7714		 Zhang RY,Wang, Guo-Jian,Lu, Yuxi,et al. When LAMOST meets Gaia DR3 Exploring the metallicity of open clusters[J]. ASTRONOMY & ASTROPHYSICS,2024,692.
APA 张汝媛.,Wang, Guo-Jian.,Lu, Yuxi.,郭素芬.,Lucatello, Sara.,...&韩占文.(2024).When LAMOST meets Gaia DR3 Exploring the metallicity of open clusters.ASTRONOMY & ASTROPHYSICS,692.
MLA 张汝媛,et al."When LAMOST meets Gaia DR3 Exploring the metallicity of open clusters".ASTRONOMY & ASTROPHYSICS 692(2024).

入库方式： OAI收割

来源：云南天文台

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