| 利用星风吸积模型计算钡星的重元素丰度 |
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| 引用本文： | 丁振瑞,刘俊红.利用星风吸积模型计算钡星的重元素丰度[J].河北大学学报(自然科学版),2010,30(3). |
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| 作者姓名： | 丁振瑞 刘俊红 |
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| 作者单位： | 1. 河北大学,物理科学与技术学院,河北,保定,071002
2. 石家庄学院,物理系,河北,石家庄,050035 |
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| 摘 要： | 为进一步探讨钡星的形成机制,采用了Yutaka Komiya(2007)建立的双星星风吸积模型,计算了4颗钡星的s-元素丰度,并和观测结果作了比较.结果发现,中子辐照量在重元素核合成方面起主导作用,同时检验了Yutaka Komiya模型的合理性.
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| 关 键 词： | 钡星 超丰 金属丰度 中子辐照量 |
Calculation of Heavy-element Abundances for Ba Stars Adopting Yutaka Komiyas Model of Wind Accretion |
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| DING Zhen-rui,LIU Jun-hong.Calculation of Heavy-element Abundances for Ba Stars Adopting Yutaka Komiyas Model of Wind Accretion[J].Journal of Hebei University (Natural Science Edition),2010,30(3). |
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| Authors: | DING Zhen-rui LIU Jun-hong |
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| Abstract: | In order to discuss formation mechanism of the barium stars furtherly,Yutaka Komiya's model of wind accretion from Jeans' theorems was adopted.The s-element abundances of four barium stars was calculated and compared with observation results.It found that the neutron exposure was played important role in the nucleosynthesis of heavy-element,and the reasonableness of Yutaka Komiya's model was checked. |
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| Keywords: | barium stars overabundances metallicity neutron exposure |
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