CaII triplet in Sextans dSph galaxy

We use Very Large Telescope (VLT)/Fibre Large Array Multi Element Spectrograph (FLAMES) intermediate-resolution (R~6500) spectra of individual red giant branch stars in the...我们使用甚大望远镜（Very Large Telescope，VLT）搭载的光纤大阵列多元素摄谱仪（Fibre Large Array Multi Element Spectrograph，FLAMES），获取了……中单颗红巨星分支恒星的中等分辨率（R≈6500）光谱