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Abundance gradients in the galactic disk
Cui, CZ; Chen, YQ; Zhao, G; Zhao, YH
2003-02-01
Source PublicationSCIENCE IN CHINA SERIES G-PHYSICS ASTRONOMY
Volume46Issue:1Pages:52-61
AbstractThe relationship between abundances and orbital parameters for 235 F- and G-type intermediate- and low- mass stars in the Galaxy is analyzed. We found that there are abundance gradients in the thin disk in both radial and vertical directions (-0.116 dex kpc(-1) and -0.309 dex kpc-1 respectively). The gradients appear to be flatter as the Galaxy evolves. No gradient is found in the thick disk based on 18 thick disk stars. These results indicate that the ELS model is mainly suitable for the evolution of the thin disk, while the SZ model is more suitable for the evolution of the thick disk. Additionally, these results indicate that in-fall and out-flow processes play important roles in the chemical evolution of the Galaxy.
KeywordLate-type Stars Abundances Galactic Disk Evolution
Indexed BySCI
Language英语
WOS IDWOS:000181438600008
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/8481
Collection光学天文研究部
AffiliationChinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
Recommended Citation
GB/T 7714
Cui, CZ,Chen, YQ,Zhao, G,et al. Abundance gradients in the galactic disk[J]. SCIENCE IN CHINA SERIES G-PHYSICS ASTRONOMY,2003,46(1):52-61.
APA Cui, CZ,Chen, YQ,Zhao, G,&Zhao, YH.(2003).Abundance gradients in the galactic disk.SCIENCE IN CHINA SERIES G-PHYSICS ASTRONOMY,46(1),52-61.
MLA Cui, CZ,et al."Abundance gradients in the galactic disk".SCIENCE IN CHINA SERIES G-PHYSICS ASTRONOMY 46.1(2003):52-61.
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