Isotopic abundances of Eu, Ba, and Sm in metal-poor stars

被引：0

作者：

Roederer, Ian U. ^{[1
]}

Sneden, Chris ^{[1
]}

Lawler, James E. ^{[2
]}

Sobeck, Jennifer S. ^{[1
]}

Pilachowski, Catherine A. ^{[3
]}

Cowan, John J. ^{[4
]}

机构：

[1] Univ Texas Austin, Dept Astron, RLM 15308, Austin, TX 78712 USA

[2] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

[3] Indiana Univ, Dept Astron, Bloomington, IN 47405 USA

[4] Univ Oklahoma, Dept Phys & Astron, Norman, OK 73019 USA

来源：

PRECISION SPECTROSCOPY IN ASTROPHYSICS | 2008年

基金：

美国国家科学基金会;

关键词：

D O I：

10.1007/978-3-540-75485-5_13

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have examined the isotopic mix of the heavy neutron-capture elements Eu, Ba, and Sm in three metal-poor stars with different enrichment histories. Isotopic abundances are more fundamental than elemental abundances as probes of the contributions from the rapid and slow nucleosynthesis reactions. We show preliminary results from our study, the first to examine isotopic abundances of three elements simultaneously in the same star.

引用

页码：55 / +

页数：3

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