钡星重元素丰度的参数化研究  

Parametric model of heavy element abundance in barium stars

作　　者：张彩霞[1] 刘俊红[1] 

机构地区：[1]石家庄学院物理系,河北石家庄050035

出　　处：《江苏科技大学学报（自然科学版）》2009年第4期373-376,共4页Journal of Jiangsu University of Science and Technology:Natural Science Edition

基　　金：国家自然科学基金资助项目(10673002)

摘　　要：提出了一种计算钡星重元素丰度的参数化方法,利用此方法对7颗钡星进行了参数化研究,计算出这些星的最佳拟合参数及其重元素丰度.对核合成参数进行了讨论,将重元素丰度的计算结果与观测值进行了比较,结果符合较好,证明了文中提出的模型的有效性.To calulate heavy element abundances of barium stars, a new parametric model was proposed in this paper. Based on the model, appropriate fitting parameters and heavy element abundances of 7 barium stars were studied, and nucleosynthesis parameters were discussed. The computing results of heavy element abundances from the model were basically agreeable with these from observations. This means the developed model is valid.

关 键 词：钡星 参数化模型 AGB星 核合成 

分 类 号：P144.9[天文地球—天体物理]