Heavy elements in old very metal-rich stars

We studied a sample of high proper motion, old and metal-rich dwarf stars, selected from the NLTT catalogue. The low pericentric distances and eccentric orbits of these solar...本研究针对从NLTT星表（NLTT catalogue）中筛选得到的高自行、年老且富金属矮星样本展开研究。这类恒星具有较低的近心距与偏心轨道，其太阳系相关