Abundances of 3 supergiants in Sextans A

We present the abundance analyses of three isolated A-type supergiant stars in the dwarf irregular galaxy Sextans A (=DDO 75) from high-resolution spectra obtained with the...本研究基于通过[原文未明确说明的观测装置]获取的高分辨率光谱（high-resolution spectra），对矮不规则星系（dwarf irregular galaxy）六分仪座A（Sextans A，即DDO 75）中的3颗孤立A型超巨星（A-type supergiant）开展了丰度分析（abundance analyses）。