Elemental abundances in five stars in M54
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Chemical abundances in five stars in M54, a globular cluster associated with the Sagittarius dwarf galaxy, have been determined using high-resolution echelle spectra. We find...
针对与人马座矮星系（Sagittarius dwarf galaxy）成协的球状星团M54内的5颗恒星，研究人员采用高分辨率阶梯光栅光谱（high-resolution echelle spectra）测定了其化学丰度。本研究发现……
