Silicon isotopic abundances in pulsating SiO maser stars

被引：0
|
作者：
Jiang, BW [1 ]
Shen, JJ [1 ]
Sun, J [1 ]
机构：
[1] Natl Astron Observ, Chinese Acad Sci, Beijing 100864, Peoples R China
来源：
MASS-LOSING PULSATING STARS AND THEIR CIRCUMSTELLAR MATTER: OBSERVATIONS AND THEORY | 2003年 / 283卷
关键词：
abundance; maser;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The abundances of Si-28 and Si-29 in pulsating SiO maser stars are calculated by fitting the SiO maser emissivity from the model to the observed integrated SiO maser intensity. For the first example star R Cas, the abundances of Si-28 and Si-29 are 1.0e-4 and 3.4e-6 respectively, which corresponds to a ratio of 29, higher than the terrestrial. The calculation to another Mira variable NV Aur draws the ratio of 32, similar tendency as R Cas.
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页码：323 / 325
页数：3
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