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.

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页码：35 / 38

页数：4

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