演講資訊

摘要：

It is commonly accepted that planets are formed in disks around young stars in the course of star formation. This indicates that the formation of planets is closely associated with the formation of stars. Despite significant advancements in our understanding of planet formation in recent years, the link between this process and star formation has remained unclear. This is because previous studies of planet formation have concentrated on objects that are mostly in the Class II stage of star formation, where the primary processes of star formation, such as mass infall and accretion, have largely been completed. As a consequence, a fundamental question pertaining to planet formation—namely, "when and how planet formation occurs during star formation"—remains unanswered. However, recent studies have suggested that planet formation may occur earlier than the Class II stage, i.e., the Class 0/I stage, where the central star is still deeply embedded in a natal dense molecular core. In this presentation, I will discuss early planet formation in embedded disks, with an emphasis on our ALMA large program, eDisk, which is studying early planet formation in a more systematic manner at a high angular resolution.