Heavy elements abundances of metal-poor stars

To better characterize the abundance patterns produced by the r-process, we have derived new abundances or upper limits for the heavy elements zinc (Zn, Z=30), yttrium (Y,...为了更好地表征快中子俘获过程（r-process）所产生的元素丰度分布特征，我们推导出了重元素锌（Zn, Z=30）、钇（Y,……）的新丰度值或丰度上限。