Horizontal branch stars in M22
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We obtained high-resolution spectra for 94 candidate stars belonging to the HB of M 22 with FLAMES. Previous works have indicated that this cluster has split subgiant (SGB) and...
我们借助FLAMES设备获取了94颗隶属于M 22水平支（Horizontal Branch，HB）的候选恒星的高分辨率光谱。此前的相关研究表明，该星团存在分裂的亚巨星支（Subgiant Branch，SGB），且……
