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On the Chemical and Kinematic Consistency between N-rich Metal-poor Field Stars and Enriched Populations in Globular Clusters

文献类型：期刊论文

作者Tang, Baitian7; Fernandez-Trincado, J. G.6; Liu, Chao4,5; Yu, Jincheng7; Yan, Hongliang4,5; Gao, Qi4,5; Shi, Jianrong4,5; Geisler, Douglas1,2,3
刊名ASTROPHYSICAL JOURNAL
出版日期2020-03-01
卷号891期号:1页码:14
关键词Chemically peculiar stars Chemical abundances Stellar kinematics Globular star clusters Milky Way stellar halo CN stars Spectroscopy Stellar dynamics Milky Way evolution
ISSN号0004-637X
DOI10.3847/1538-4357/ab7233
英文摘要Interesting chemically peculiar field stars may reflect their stellar evolution history and their possible origin in a different environment from where they are found now; this is one of the most important research fields in Galactic archeology. To explore this further, we have used the CN-CH bands around 4000 A to identify N-rich metal-poor field stars in LAMOST DR3. Here we expand our N-rich, metal-poor field star sample to similar to 100 stars in LAMOST DR5, where 53 of them are newly found in this work. We investigate light elements of common stars between our sample and APOGEE DR14. While Mg, Al, and Si abundances generally agree with the hypothesis that N-rich metal-poor field stars come from enriched populations in globular clusters, it is still inconclusive for C, N, and O. After integrating the orbits of our N-rich field stars and a control sample of normal metal-poor field stars, we find that N-rich field stars have different orbital parameter distributions compared to the control sample-specifically, apocentric distances, maximum vertical amplitude (Z(max)), orbital energy, and z-direction angular momentum (L-z). The orbital parameters of N-rich field stars indicate that most of them are inner-halo stars. The kinematics of N-rich field stars support their possible GC origin. The spatial and velocity distributions of our bona fide N-rich field star sample are important observational evidence to constrain simulations of the origin of these interesting objects.
WOS关键词RED-GIANT BRANCH ; MILKY-WAY ; ABUNDANCE VARIATIONS ; DYNAMICAL EVOLUTION ; MAIN-SEQUENCE ; NGC 1851 ; STELLAR ; LAMOST ; GAIA ; BAR
资助项目National Natural Science Foundation of China[U1931102] ; National Natural Science Foundation of China[11603037] ; National Natural Science Foundation of China[11973052] ; hundred-talent project of Sun Yat-sen University ; FONDECYT[3180210] ; Becas Iberoam 'erica Investigador 2019, Banco Santander, Chile ; Youth Innovation Promotion Association, CAS ; Astronomical Big Data Joint Research Center ; Chilean Centro de Excelencia en Astrofisica y Tecnologias Afines (CATA) BASAL grant[AFB-170002] ; Direccion de Investigacion y Desarrollo de la Universidad de La Serena through the Programa de Incentivo a la Investigacion de Academicos (PIA-DIDULS) ; National Development and Reform Commission ; Centre National D'Etudes Spatiale (CNES)[0101973] ; UTINAM Institute of the Universite de Franche-Comte - Region de Franche-Comte ; Institut des Sciences de l'Univers (INSU) ; Region de Franche-Comte
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000518934700001
出版者IOP PUBLISHING LTD
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; hundred-talent project of Sun Yat-sen University ; hundred-talent project of Sun Yat-sen University ; FONDECYT ; FONDECYT ; Becas Iberoam 'erica Investigador 2019, Banco Santander, Chile ; Becas Iberoam 'erica Investigador 2019, Banco Santander, Chile ; Youth Innovation Promotion Association, CAS ; Youth Innovation Promotion Association, CAS ; Astronomical Big Data Joint Research Center ; Astronomical Big Data Joint Research Center ; Chilean Centro de Excelencia en Astrofisica y Tecnologias Afines (CATA) BASAL grant ; Chilean Centro de Excelencia en Astrofisica y Tecnologias Afines (CATA) BASAL grant ; Direccion de Investigacion y Desarrollo de la Universidad de La Serena through the Programa de Incentivo a la Investigacion de Academicos (PIA-DIDULS) ; Direccion de Investigacion y Desarrollo de la Universidad de La Serena through the Programa de Incentivo a la Investigacion de Academicos (PIA-DIDULS) ; National Development and Reform Commission ; National Development and Reform Commission ; Centre National D'Etudes Spatiale (CNES) ; Centre National D'Etudes Spatiale (CNES) ; UTINAM Institute of the Universite de Franche-Comte - Region de Franche-Comte ; UTINAM Institute of the Universite de Franche-Comte - Region de Franche-Comte ; Institut des Sciences de l'Univers (INSU) ; Institut des Sciences de l'Univers (INSU) ; Region de Franche-Comte ; Region de Franche-Comte ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; hundred-talent project of Sun Yat-sen University ; hundred-talent project of Sun Yat-sen University ; FONDECYT ; FONDECYT ; Becas Iberoam 'erica Investigador 2019, Banco Santander, Chile ; Becas Iberoam 'erica Investigador 2019, Banco Santander, Chile ; Youth Innovation Promotion Association, CAS ; Youth Innovation Promotion Association, CAS ; Astronomical Big Data Joint Research Center ; Astronomical Big Data Joint Research Center ; Chilean Centro de Excelencia en Astrofisica y Tecnologias Afines (CATA) BASAL grant ; Chilean Centro de Excelencia en Astrofisica y Tecnologias Afines (CATA) BASAL grant ; Direccion de Investigacion y Desarrollo de la Universidad de La Serena through the Programa de Incentivo a la Investigacion de Academicos (PIA-DIDULS) ; Direccion de Investigacion y Desarrollo de la Universidad de La Serena through the Programa de Incentivo a la Investigacion de Academicos (PIA-DIDULS) ; National Development and Reform Commission ; National Development and Reform Commission ; Centre National D'Etudes Spatiale (CNES) ; Centre National D'Etudes Spatiale (CNES) ; UTINAM Institute of the Universite de Franche-Comte - Region de Franche-Comte ; UTINAM Institute of the Universite de Franche-Comte - Region de Franche-Comte ; Institut des Sciences de l'Univers (INSU) ; Institut des Sciences de l'Univers (INSU) ; Region de Franche-Comte ; Region de Franche-Comte ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; hundred-talent project of Sun Yat-sen University ; hundred-talent project of Sun Yat-sen University ; FONDECYT ; FONDECYT ; Becas Iberoam 'erica Investigador 2019, Banco Santander, Chile ; Becas Iberoam 'erica Investigador 2019, Banco Santander, Chile ; Youth Innovation Promotion Association, CAS ; Youth Innovation Promotion Association, CAS ; Astronomical Big Data Joint Research Center ; Astronomical Big Data Joint Research Center ; Chilean Centro de Excelencia en Astrofisica y Tecnologias Afines (CATA) BASAL grant ; Chilean Centro de Excelencia en Astrofisica y Tecnologias Afines (CATA) BASAL grant ; Direccion de Investigacion y Desarrollo de la Universidad de La Serena through the Programa de Incentivo a la Investigacion de Academicos (PIA-DIDULS) ; Direccion de Investigacion y Desarrollo de la Universidad de La Serena through the Programa de Incentivo a la Investigacion de Academicos (PIA-DIDULS) ; National Development and Reform Commission ; National Development and Reform Commission ; Centre National D'Etudes Spatiale (CNES) ; Centre National D'Etudes Spatiale (CNES) ; UTINAM Institute of the Universite de Franche-Comte - Region de Franche-Comte ; UTINAM Institute of the Universite de Franche-Comte - Region de Franche-Comte ; Institut des Sciences de l'Univers (INSU) ; Institut des Sciences de l'Univers (INSU) ; Region de Franche-Comte ; Region de Franche-Comte ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; hundred-talent project of Sun Yat-sen University ; hundred-talent project of Sun Yat-sen University ; FONDECYT ; FONDECYT ; Becas Iberoam 'erica Investigador 2019, Banco Santander, Chile ; Becas Iberoam 'erica Investigador 2019, Banco Santander, Chile ; Youth Innovation Promotion Association, CAS ; Youth Innovation Promotion Association, CAS ; Astronomical Big Data Joint Research Center ; Astronomical Big Data Joint Research Center ; Chilean Centro de Excelencia en Astrofisica y Tecnologias Afines (CATA) BASAL grant ; Chilean Centro de Excelencia en Astrofisica y Tecnologias Afines (CATA) BASAL grant ; Direccion de Investigacion y Desarrollo de la Universidad de La Serena through the Programa de Incentivo a la Investigacion de Academicos (PIA-DIDULS) ; Direccion de Investigacion y Desarrollo de la Universidad de La Serena through the Programa de Incentivo a la Investigacion de Academicos (PIA-DIDULS) ; National Development and Reform Commission ; National Development and Reform Commission ; Centre National D'Etudes Spatiale (CNES) ; Centre National D'Etudes Spatiale (CNES) ; UTINAM Institute of the Universite de Franche-Comte - Region de Franche-Comte ; UTINAM Institute of the Universite de Franche-Comte - Region de Franche-Comte ; Institut des Sciences de l'Univers (INSU) ; Institut des Sciences de l'Univers (INSU) ; Region de Franche-Comte ; Region de Franche-Comte
源URL[http://ir.bao.ac.cn/handle/114a11/56204]  
专题中国科学院国家天文台
通讯作者Tang, Baitian
作者单位1.Univ La Serena, Inst Invest Multidisciplinario Ciencia & Tecnol, Ave Raul Bitran S-N, La Serena, Chile
2.Univ La Serena, Dept Astron, Fac Ciencias, Ave Juan Cisternas 1200, La Serena, Chile
3.Univ Concepcion, Dept Astron, Casilla 160-C, Concepcion, Chile
4.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
5.Chinese Acad Sci, Key Lab Opt Astron, Natl Astron Observ, Beijing 100101, Peoples R China
6.Univ Atacama, Inst Astron & Ciencias Planetarias, Copayapu 485, Copiapo, Chile
7.Sun Yat Sen Univ, Sch Phys & Astron, Zhuhai 519082, Peoples R China
推荐引用方式
GB/T 7714		 Tang, Baitian,Fernandez-Trincado, J. G.,Liu, Chao,et al. On the Chemical and Kinematic Consistency between N-rich Metal-poor Field Stars and Enriched Populations in Globular Clusters[J]. ASTROPHYSICAL JOURNAL,2020,891(1):14.
APA Tang, Baitian.,Fernandez-Trincado, J. G..,Liu, Chao.,Yu, Jincheng.,Yan, Hongliang.,...&Geisler, Douglas.(2020).On the Chemical and Kinematic Consistency between N-rich Metal-poor Field Stars and Enriched Populations in Globular Clusters.ASTROPHYSICAL JOURNAL,891(1),14.
MLA Tang, Baitian,et al."On the Chemical and Kinematic Consistency between N-rich Metal-poor Field Stars and Enriched Populations in Globular Clusters".ASTROPHYSICAL JOURNAL 891.1(2020):14.

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