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Stellar Parameters and Abundance Analysis of 58 Late G Giants
Liu, Yujuan1,2; Sato, Bun'ei3; Takeda, Yoichi2; Ando, Hiroyasu2; Zhao, Gang1
2010
Source PublicationPUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
Volume62Issue:4Pages:1071-1084
AbstractWe present stellar atmospheric parameters, and kinematic parameters for a part of Xinglong Planet Search Program sample 58 late G-type giants, obtained at Okayama Astrophysical Observatory. Additionally, we determined the chemical abundances, especially for the elements C, O, and Na. The metallicity distribution of our sample ranges covered from 0.6 to 0.2 in [Fe/H], which supports the previous results, suggesting a lack of super metal-rich giants with [Fe/H] > +0.2. The abundance of C is depleted by 0.13 dex, and [Na/Fe] shows an overabundance of 0.1 dex compared to a dwarf with the same spectral type, while the 0 abundance was not altered after the first dredge up. These results are consistent with theoretical predictions of stellar evolution. The behaviors of Si, Ca, Ti, Cr, Ni, Mn, Sc II, Y II, and Ce II in our giants follow the same trends as in dwarfs.
KeywordStars: Abundances Stars: Atmospheres Stars: Fundamental Parameters Stars: Late-type
Indexed BySCI
Language英语
WOS IDWOS:000282485100023
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/7734
Collection光学天文研究部
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China
2.Natl Inst Nat Sci, Natl Astron Observ Japan, Mitaka, Tokyo 1818588, Japan
3.Tokyo Inst Technol, Meguro Ku, Tokyo 1528550, Japan
Recommended Citation
GB/T 7714
Liu, Yujuan,Sato, Bun'ei,Takeda, Yoichi,et al. Stellar Parameters and Abundance Analysis of 58 Late G Giants[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2010,62(4):1071-1084.
APA Liu, Yujuan,Sato, Bun'ei,Takeda, Yoichi,Ando, Hiroyasu,&Zhao, Gang.(2010).Stellar Parameters and Abundance Analysis of 58 Late G Giants.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,62(4),1071-1084.
MLA Liu, Yujuan,et al."Stellar Parameters and Abundance Analysis of 58 Late G Giants".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 62.4(2010):1071-1084.
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