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Abundances of metal-poor stars and slow neutron-capture progress

文献类型：期刊论文

作者Zhang, MJ; Zhang, B; Liu, JH; Li, GL
刊名HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
出版日期2003-04
卷号27页码:304-308
关键词metal-poor star lead-rich star s-progress neutron exposure
ISSN号0254-3052
英文摘要We apply the parametric model to fit the surface abundances of three lead-rich stars (HD187861, HD196944 and HD224959) without adopting any specific stellar model. It shows that the calculated result can fit the observed data well whether the reaction branchings are taken into account or not. Besides, by the comparison of the model parameters of the three lead-rich stars with, those of two very metal-poor stars (LP625-44 and LP706-7), we find out that the average neutron exposure of the former is larger than that of the latter, but the dredge-up extent is smaller. We come to the conclusion that the parametric model is significant of constraints on the stellar model, though it is very simple.
WOS关键词GIANT BRANCH STARS ; CROSS-SECTIONS ; S-PROCESS ; NUCLEOSYNTHESIS
WOS研究方向Physics
语种中文
WOS记录号WOS:000182298600006
出版者SCIENCE CHINA PRESS
源URL[http://119.78.100.186/handle/113462/57153]  
专题中国科学院近代物理研究所
通讯作者Zhang, MJ
作者单位1.Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China
2.Guangxi Normal Univ, Dept Phys & Eletron Sci, Guilin 541004, Peoples R China
3.Hebei Normal Univ, Dept Phys, Shijiazhuang 050016, Peoples R China
4.Natl Lab Heavy Ion Accelerator Lanzhou, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, MJ,Zhang, B,Liu, JH,et al. Abundances of metal-poor stars and slow neutron-capture progress[J]. HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,2003,27:304-308.
APA Zhang, MJ,Zhang, B,Liu, JH,&Li, GL.(2003).Abundances of metal-poor stars and slow neutron-capture progress.HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,27,304-308.
MLA Zhang, MJ,et al."Abundances of metal-poor stars and slow neutron-capture progress".HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION 27(2003):304-308.

入库方式： OAI收割

来源：近代物理研究所

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