银河系双星团及星团群研究进展OA北大核心CSTPCD

Open clusters are ideal laboratories for studying star formation and evolution.However the pattern of the formation of star clusters remains a fundamental and unresolved question.To explore the formation of star clusters,it is essential to search physically con-nected pairs or multiple systems of open clusters that could constrain the theories of star cluster formation.Revealing the properties of binary clusters and cluster groups can also yield important insights into the hierarchical formation of stars.Additionally,binary star clusters and cluster groups provide exceptional opportunities to investigate the formation and evolution patterns of star clusters,which are born in the same molecular cloud and to reveal the connection between the cloud and star clusters in morphological and kinematic properties.This article begins by discussing the selection of samples and the patterns of formation for binary star clusters and cluster groups,providing a concise review of research conducted within the Milky Way,and focusing on recent advancements in this field during the Gaia era.