The peculiar evolution of low-mass pop III stars

被引：0

作者：

Schlattl, H ^{[1
]}

Cassisi, S ^{[1
]}

Weiss, A ^{[1
]}

Salaris, M ^{[1
]}

机构：

[1] Osserv Astron Collurania, I-64000 Teramo, Italy

来源：

NEW QUESTS IN STELLAR ASTROPHYSICS: THE LINK BETWEEN STARS AND COSMOLOGY | 2002年 / 274卷

关键词：

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have followed the evolution of low-mass, initially metal-free stars from the zero-age main sequence to the late AGB under the assumption of pollution with external, metal-rich material and in the presence of diffusion. We identify conditions under which helium-flash induced mixing between the envelope and carbon-rich layers occurs and compare the resulting surface abundances and post-flash stellar parameters with those of observed extremely metal-poor stars.

引用

页码：55 / 58

页数：4

共 8 条

[1] A SEARCH FOR STARS OF VERY LOW METAL ABUNDANCE .2. [J].