2024年11月13日14:00，由上海交通大学物理与天文学院主办的学术研讨会，分别邀请到中国科学院紫金山天文台魏俊杰研究员作题为“暂现源宇宙学与基本物理检验”和南京大学天文与空间科学学院李志远教授作题为“The Hot and Dynamic Galactic Center: An X-ray Perspective”学术报告，详情如下。
报告二The Hot and Dynamic Galactic Center: An X-ray Perspective 李志远 Zhiyuan Li is a Professor of the School of Astronomy and Space Science and the Institute of Science and Technology for Deep Space Exploration at Nanjing University. He obtained his Bachelor and Master degrees in Astronomy at Nanjing University and PhD degree in Astrophysics at the University of Massachusetts, Amherst. His research is mainly focused on high-energy astrophysics in the local universe, with a long-term interest in the interplay between massive black holes and their environments. He is also a keen user and developer of space-based astronomical facilities. 报告摘要 摘要：The central few hundred parsec region of our Galaxy, loosely defined as the Galactic Center, offers the best opportunity to study a wide range of physical processes and intriguing phenomena in the vicinity of a super-massive black hole (SMBH), known as Sgr A*. In this talk, I will provide a brief overview of the enigmatic Galactic Center seen through X-rays, which are the prime tracer of close binaries and diffuse hot gas. I will then introduce several recent case studies by our team, based primarily on Chandra X-ray observations and hydrodynamic simulations. These include: (1) Massive, colliding wind binaries surrunding Sgr A* and their implications on the Galactic Center metallicity, (2) Evolution of the supernova remnant closest to Sgr A* and its potential impact, and (3) Origin of the 100-parsec-long "X-ray chimney", a putative bi-polar outflow. When time permits, I will also touch on topics related to the X-ray binary populations in the Galactic Center.
