Accretion in Sirius binary system

被引：0
|
作者：
Yushchenko, Alexander [1 ]
Gopka, Vera [2 ]
机构：
[1] Sejong Univ, Astrophys Res Ctr Struct & Evolut Cosmos, Seoul, South Korea
[2] Odessa Natl Univ, Astron Observ, Odessa, Ukraine
来源：
ORIGIN OF MATTER AND EVOLUTION OF GALAXIES | 2006年 / 847卷
关键词：
nucleosynthesis; stars : abundances; stars : chemically peculiar; stars : individual (Sirius);
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The chemical composition of Sirius A was calculated using Copernicus ultraviolet spectrum. Our results and earliar investigations of this star permit to find the abundances of 50 chemical elements in the atmosphere of Sirius A. We founf that the abundance pattern of Sirius A is strongly contaminated by s-process enriched matter. It can be explained by mass transfer from Sirius B at previous stage of its evolution. Three different estimates of the age of Sirius B from 103 to 108 years are possible.
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页码：503 / +
页数：2
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