报告题目： 疏散星团示踪：从银盘结构到星系周介质中的恒星形成

报告人：何治宏 副研究员（西华师范大学物理与天文学院）

Abstract：With their wide yet well-determined age coverage, precise distances, and accurate proper motions, open clusters serve as natural laboratories for stellar formation and evolution, and as key tracers for mapping the three-dimensional structure and dynamical history of the Milky Way. In the era of large-scale astrometric and spectroscopic surveys such as Gaia and LAMOST, cluster research is undergoing a historic transformation toward larger samples and higher precision. This talk systematically explores how multi-wavelength survey data can advance our understanding of Galactic star formation and Milky Way structure, organized around two themes: (1) using cluster populations across a broad age baseline to constrain the large-scale structure and evolution of the spiral arms and Galactic warp; and (2) Extending from the Galactic disk into the circumgalactic environments, where newly discovered young clusters shed light on the triggering mechanisms of star formation within high-velocity clouds. Together, these results highlight the central role that new open cluster samples play in building a coherent picture of the Milky Way's assembly and ongoing evolution.

报告时间：2026年4月22日10:00

报告地点：紫台仙林园区5号楼516会议室

欢迎大家参加！