O, Na, Ba and Eu abundances in open clusters

Open clusters are historically regarded as single-aged stellar populations representative of star formation within the Galactic disc. Recent literature has questioned this view,...长期以来，疏散星团（open clusters）被视作单年龄恒星族群，是银盘内恒星形成过程的典型代表。近年来的学术文献已对这一观点提出了质疑……