RGB stars in NGC 6822, Ca II triplet
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We present a detailed analysis of the chemistry and kinematics of red giants in the dwarf irregular galaxy NGC 6822. Spectroscopy at ~8500{AA} was acquired for 72 red giant...
本研究针对矮不规则星系（dwarf irregular galaxy）NGC 6822中的红巨星（red giant）的化学性质与运动学特征开展了详尽分析。我们为72颗红巨星获取了波长约8500埃的光谱数据……
