CaII index of SMC red giant branch stars

We present stellar metallicities derived from Ca II triplet spectroscopy in over 350 red giant branch stars in 13 fields distributed in different positions in the Small...本研究提供了基于钙II三重线光谱（Ca II triplet spectroscopy）推导得到的恒星金属丰度数据，涵盖了分布于Small（原文未完整给出）不同位置的13个天区内的350余颗红巨星分支恒星。