Li abundance values for stars in NGC 6819
收藏B2FIND2026-03-19 收录
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Spectroscopy of 333 NGC 6819 stars and Gaia astrometry are used to map Li evolution from the giant branch tip to 0.5 mag below the Li dip. Isochrone comparison with...
本研究利用333颗NGC 6819恒星的光谱学数据与盖亚(Gaia)天体测量数据,绘制了锂(Li)从红巨星支顶端至锂低谷(Li dip)下方0.5星等范围内的演化轨迹,并将与等时线(isochrone)展开对比……



