NAOC Open IR
Formation of the Abundance Boundaries of the Heavier Neutron-capture Elements in Metal-poor Stars
Yang, Guochao1; Li, Hongjie1,2; Liu, Nian3; Zhang, Lu4; Cui, Wenyuan1; Liang, Yanchun5; Niu, Ping1,6; Zhang, Bo1
2017-06-01
Source PublicationPUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
ISSN0004-6280
Volume129Issue:976Pages:9
AbstractThe abundance scatter of heavier r-process elements (Z >= 56) relative to Fe ([r/Fe]) in metal-poor stars preserves excellent information of the star formation history and provides important insights into the various situations of the Galactic chemical enrichment. In this respect, the upper and lower boundaries of [r/Fe] could present useful clues for investigating the extreme situations of the star formation history and the early Galactic chemical evolution. In this paper, we investigate the formation of the upper and lower boundaries of [r/Fe] for the gas clouds. We find that, for a cloud from which metal-poor stars formed, the formation of the upper limits of [r/Fe] is mainly due to the pollution from a single main r-process event. For a cloud from which metal-poor stars formed, the formation of the lower limits of [r/Fe] is mainly due to the pollution from a single SN II event that ejects primary Fe.
Keywordnuclear reactions, nucleosynthesis, abundances stars: abundances stars: massive
Funding OrganizationNational Natural Science Foundation of China ; Natural Science Foundation of Hebei Province ; Program for Excellent Innovative Talents in University of Hebei Province ; Innovation Fund Designated for Graduate Students of Hebei Province ; National Natural Science Foundation of China ; Natural Science Foundation of Hebei Province ; Program for Excellent Innovative Talents in University of Hebei Province ; Innovation Fund Designated for Graduate Students of Hebei Province ; National Natural Science Foundation of China ; Natural Science Foundation of Hebei Province ; Program for Excellent Innovative Talents in University of Hebei Province ; Innovation Fund Designated for Graduate Students of Hebei Province ; National Natural Science Foundation of China ; Natural Science Foundation of Hebei Province ; Program for Excellent Innovative Talents in University of Hebei Province ; Innovation Fund Designated for Graduate Students of Hebei Province
DOI10.1088/1538-3873/aa6569
WOS KeywordR-PROCESS ELEMENTS ; GALACTIC CHEMICAL EVOLUTION ; S-PROCESS NUCLEOSYNTHESIS ; DIVERSE SUPERNOVA SOURCES ; GIANT BRANCH STARS ; MASSIVE STARS ; EARLY GALAXY ; MILKY-WAY ; SPECTROSCOPIC ANALYSIS ; SURVEY HERES
Language英语
Funding ProjectNational Natural Science Foundation of China[11673007] ; National Natural Science Foundation of China[11273011] ; National Natural Science Foundation of China[U1231119] ; National Natural Science Foundation of China[10973006] ; National Natural Science Foundation of China[11403007] ; National Natural Science Foundation of China[11547041] ; National Natural Science Foundation of China[11643007] ; National Natural Science Foundation of China[11273026] ; Natural Science Foundation of Hebei Province[A2011205102] ; Program for Excellent Innovative Talents in University of Hebei Province[CPRC034] ; Innovation Fund Designated for Graduate Students of Hebei Province[sj2016023]
Funding OrganizationNational Natural Science Foundation of China ; Natural Science Foundation of Hebei Province ; Program for Excellent Innovative Talents in University of Hebei Province ; Innovation Fund Designated for Graduate Students of Hebei Province ; National Natural Science Foundation of China ; Natural Science Foundation of Hebei Province ; Program for Excellent Innovative Talents in University of Hebei Province ; Innovation Fund Designated for Graduate Students of Hebei Province ; National Natural Science Foundation of China ; Natural Science Foundation of Hebei Province ; Program for Excellent Innovative Talents in University of Hebei Province ; Innovation Fund Designated for Graduate Students of Hebei Province ; National Natural Science Foundation of China ; Natural Science Foundation of Hebei Province ; Program for Excellent Innovative Talents in University of Hebei Province ; Innovation Fund Designated for Graduate Students of Hebei Province
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000423188200001
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/36033
Collection中国科学院国家天文台
Corresponding AuthorZhang, Bo
Affiliation1.Hebei Normal Univ, Dept Phys, 20 Rd East 2nd Ring South, Shijiazhuang 050024, Hebei, Peoples R China
2.Hebei Univ Sci & Technol, Sch Sci, Shijiazhuang 050018, Hebei, Peoples R China
3.Beijing Normal Univ, Astron Dept, Beijing 100875, Peoples R China
4.Hebei Normal Univ, Coll Math & Informat Sci, Shijiazhuang 050024, Hebei, Peoples R China
5.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China
6.Shijiazhuang Univ, Dept Phys, Shijiazhuang 050035, Hebei, Peoples R China
Recommended Citation
GB/T 7714
Yang, Guochao,Li, Hongjie,Liu, Nian,et al. Formation of the Abundance Boundaries of the Heavier Neutron-capture Elements in Metal-poor Stars[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,2017,129(976):9.
APA Yang, Guochao.,Li, Hongjie.,Liu, Nian.,Zhang, Lu.,Cui, Wenyuan.,...&Zhang, Bo.(2017).Formation of the Abundance Boundaries of the Heavier Neutron-capture Elements in Metal-poor Stars.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,129(976),9.
MLA Yang, Guochao,et al."Formation of the Abundance Boundaries of the Heavier Neutron-capture Elements in Metal-poor Stars".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC 129.976(2017):9.
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