中子俘获元素钡和锶丰度的相关性研究

Study of the Correlation Between the Neutron-capture Elements Barium and Strontium Abundances

根据目前贫金属星中元素钡和锶的观测丰度 ,发现二者具有明显的线性相关关系 ,采用通常的最小二乘法拟合出 [Sr/H]和 [Ba/H]的线性回归方程 ,并利用 F-检验法和相关系数

Based on the observed abundances of barium and strontium in metal poor stars,we find a obvious linear correlation between them.By adopting the method of ordinary least squares,the regressive function of [Sr/H] on [Ba/H] is obtained.Furthermore,the effectiveness of the regressive function is tested by the F test and the R test.