Age-metallicity relation in solar neighbourhood
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We derive stellar ages, from evolutionary tracks, and metallicities, from Stroemgren photometry, for a sample of 5828 dwarf and sub-dwarf stars from the Hipparcos (Cat. )...
本研究基于演化轨道计算恒星年龄,并通过斯特龙根测光法(Stroemgren photometry)测定金属丰度,研究样本包含来自依巴谷星表(Hipparcos Cat.)的5828颗矮星与亚矮星……



