Atmospheric parameters of M4 stars

We report new metallicities for stars of Galactic globular cluster M4 using the largest number of stars ever observed at high spectral resolution in any cluster. We analyzed...本研究针对银河球状星团（Galactic globular cluster）M4的恒星，采用迄今针对任一星团开展高光谱分辨率观测所用的规模最大的恒星样本，报道了全新的恒星金属丰度（metallicity）测量结果。本研究已对……进行了分析。