Leaded metal-poor stars

被引：0
作者：
Sneden, C [1 ]
Ivans, I [1 ]
机构：
[1] Univ Texas, Dept Astron, Austin, TX 78712 USA
来源：
Ninth Texas-Mexico Conference on Astrophysics | 2005年 / 23卷
关键词：
nuclear reactions; nucleosynthesis; abundances; stars : abundances; stars : AGB and post-AGB; stars : binaries; stars : blue stragglers; stars : individual (CS29497-030); stars : population II;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The spectra of low metallicity staxs with large abundances of carbon and neutron-capture elements are discussed, with special emphasis on the blue metal-poor star CS 29497-030, which has an extremely large abundance of lead. This object, like essentially all of its class, has obvious enhancements of the products of slow neutron-capture nucleosynthesis, probably delivered to it by a former asymptotic branch companion star. However, its neutron-capture abundance cannot be explained entirely in this fashion; significant prior contributions from rapid neutron-capture processes seem to be required.
引用
收藏
页码：35 / 38
页数：4
相关论文
共 21 条
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