|
|||||
|
|
| 钡星重元素丰度的研究 | |
| 引用本文： | 张彩霞,张 江,崔文元,耿媛媛,张 波.钡星重元素丰度的研究[J].河北科技大学学报,2009,30(3):185-188. |
| 作者姓名： | 张彩霞 张 江 崔文元 耿媛媛 张 波 |
| 作者单位： | 1. 石家庄学院物理系,河北石家庄,050035 2. 石家庄经济学院数理学院,河北石家庄,050031 3. 河北师范大学物理科学与信息工程学院,河北石家庄,050016 |
| 基金项目： | 国家自然科学基金资助项目 |
| 摘 要： | 提出了一种计算钡星重元素丰度的参数化模型,利用此模型很好地拟合了8颗钡星的重元素丰度,说明提出模型的有效性。对最佳拟合参数进行了比较和讨论,得到以下主要结论:强钡星的s-过程分量系数明显大于弱钡星的s-过程分量系数,强钡星和弱钡星的中子辐照量、重叠因子没有明显区别,它们的s-元素超丰程度不同主要是因为钡星系统轨道周期不同。 |
| 关 键 词： | 钡星 AGB星 参数化模型 |
| 收稿时间： | 2009/4/25 0:00:00 |
| 修稿时间： | 2009/5/20 0:00:00 |
Surface abundances of heavy elements in Barium stars |
|
| ZHANG Cai-xi,ZHANG Jiang,CUI Wen-yuan,GENG Yuan-yuan and ZHANG Bo.Surface abundances of heavy elements in Barium stars[J].Journal of Hebei University of Science and Technology,2009,30(3):185-188. | |
| Authors: | ZHANG Cai-xi ZHANG Jiang CUI Wen-yuan GENG Yuan-yuan and ZHANG Bo |
| Institution: | 1.Department of Physics;Shijiazhuang College;Shijiazhuang Hebei 050035;China;2.School of Mathematics and Science;Shijiazhuang University of Economics;Shijiazhuang Hebei 050031;3.College of Physics Science and Information Engineering;Hebei Normal University;Shijiazhuang Hebei 050016;China |
| Abstract: | A new parametric model on the abundances of heavy elements Barium stars(i.e.Ba stars) has been proposed and applied to 8 Ba stars,whose calculating results well fit the observation.After detailed analysis about the best fitting parameters,the main conclusions have been made as follows: The s-process-component coefficients of strong Ba stars are obviously greater than those of mild Ba stars,while the neutron exposure and overlap factors of the former are much similar to those of the latter.Consequently,their... |
| Keywords: | Barium stars AGB-stars parametric model |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
| 点击此处可从《河北科技大学学报》浏览原始摘要信息 | |
| 点击此处可从《河北科技大学学报》下载免费的PDF全文 | |