论文标题
发现Lamost调查的九个超级富含富含富裕的未发展的星星
Discovery of Nine Super Li-rich Unevolved Stars from the LAMOST Survey
论文作者
论文摘要
基于大型天空区域多对象光纤光谱望远镜（Lamost）中分辨率光谱调查（MRS），我们报告发现发现了9颗超级Li-Li-rich的未发展的星星（LI）$ 3.8 dex。这些物体显示出异常高的锂丰度，其含量比3.3 dex的气象值高三倍，这表明它们必须经历了锂富集的史。发现我们的七个程序明星是$ vsini> 9 $ km \，s $^{ - 1} $的快速旋转器，这表明偶然物质的积聚可能是这些未变形星的锂增强的主要贡献者，但是，其他来源不能排除其他来源。
Based on the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) medium-resolution spectroscopic survey (MRS), we report the discovery of nine super Li-rich unevolved stars with A(Li) $>$ 3.8 dex. These objects show unusually high levels of lithium abundances up to three times higher than the meteoritic value of 3.3 dex, which indicates that they must have experienced a history of lithium enrichment. It is found that seven of our program stars are fast rotators with $vsini>9$ km\,s$^{-1}$, which suggests that the accretion of circumstellar matter may be the main contributor to the lithium enhancement of these unevolved stars, however, other sources cannot be excluded.
