Kinematics and chemical abundances of metal-poor stars in the Galactic outer halo

被引：0
|
作者：
Ishigaki, M. [1 ]
Chiba, M. [1 ]
Aoki, W. [2 ]
机构：
[1] Tohoku Univ, Astron Inst, Aoba Ku, Sendai, Miyagi 9808578, Japan
[2] Natl Astron Observ Japan, Tokyo 1818588, Japan
来源：
ASTRONOMISCHE NACHRICHTEN | 2008年 / 329卷 / 9-10期
关键词：
Galaxy: abundances; Galaxy: halo; stars: abundances;
D O I：
10.1002/asna.200811063
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A survey of chemical abundances for Galactic metal-poor stars, which are likely constituents of the outer part of the halo, is currently in progress. The sample analysed so far is comprised of 26 metal-poor ([Fe/H] < -1) stars, whose estimated orbits reach >5 kpc above and below the Galactic plane. Using these sample stars selected based on their kinematics, we carried out the high-resolution spectroscopy with Subaru/HDS and obtained their chemical abundances. The detailed abundance pattern of the outer halo stars has important clues for the progenitor systems populating the Galactic outer halo. The current status of our survey is reported. (C) 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
引用
收藏
页码：1073 / 1075
页数：3
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