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贫金属星的重元素丰度细致的光谱分析
赵刚
1993
Source Publication天体物理学报
ISSN0253-2379
Volume013Issue:004Pages:347
Abstract本文确定了贫金属矮星和亚巨星的重元素丰度,基于高分辨率高信噪比光谱得到27颗样本星的锶,钇,锆,钡,镧,铈和铕丰度,主要结果为:(1)第一峰区元素锶-钇-锆显示了奇偶效应,在晕族星中钇相对于锶和锆过贫。(2)对[Fe/H]>-2.5的恒星钇丰度为常数。(3)[Fe/H]<1.7的样本星,随金属丰度减小钡过贫增加。(4)镧和铈相对于铁过贫。(5)在金属丰度-1.0>[Fe/H]>-2.0区间,铕表现
Language英语
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/47832
Collection中国科学院国家天文台
Affiliation中国科学院国家天文台
First Author AffilicationNational Astronomical Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
赵刚. 贫金属星的重元素丰度细致的光谱分析[J]. 天体物理学报,1993,013(004):347.
APA 赵刚.(1993).贫金属星的重元素丰度细致的光谱分析.天体物理学报,013(004),347.
MLA 赵刚."贫金属星的重元素丰度细致的光谱分析".天体物理学报 013.004(1993):347.
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