【星海学者】关于张从尧博士非会议来访及学术交流活动的通知

● 来访学者信息/ Bio

Dr. Congyao Zhang is currently a postdoctoral researcher at Masaryk University in the Czech Republic. He received his PhD from the Kavli Institute for Astronomy and Astrophysics (KIAA) at Peking University in 2016, and subsequently held postdoctoral positions at the Max Planck Institute for Astrophysics (MPA) and the University of Chicago. His research interests include galaxy clusters, large-scale structures, and cosmology. His research focuses on galaxy clusters, large-scale structures, and cosmology, using both observations and numerical simulations. He has recently led several cluster kinematic mapping projects within the XRISM collaboration.

● 日程安排/ Agenda

● 报告题目和摘要/Lectures and Seminar title and abstract:

Lecture : A Journey Through Galaxy Clusters

Abstract:

Galaxy clusters, multiscale ecosystems linking the cosmic web to galaxies, provide key laboratories for cosmology, plasma astrophysics, and the nature of dark matter. Their growth is driven by anisotropic gas accretion and mergers, while their internal thermodynamic and kinematic states are regulated by feedback from central supermassive black holes. In this two-part lecture series, I will present recent progress in our understanding of cluster structure and dynamics by combining numerical modeling with cutting-edge multi-wavelength observations.

In Part I, I will provide a general introduction to galaxy clusters, covering their formation and evolution and their connection to the cosmic web, with a focus on global cluster structure and the physical processes operating in the outskirts.

In Part II, I will concentrate on radio-mode AGN feedback and its role in shaping the intracluster atmosphere, highlighting recent exciting new results from the XRISM X-ray Observatory.

Seminar：A Dynamic View of Galaxy Clusters – From the Cores to the Outskirts

Abstract:

Galaxy clusters, as massive, virialized halos within the cosmic web, serve as ideal laboratories for advancing our understanding of cosmology, plasma physics, and the nature of dark matter. The study of their formation and evolution represents one of the frontiers of modern astrophysics. In this talk, I will discuss several cutting-edge topics in cluster research, ranging from the activity of supermassive black holes at cluster centers to gas accretion and violent mergers in the outskirts. I will highlight our recent progress in mapping gas kinematics with the XRISM X-ray Observatory and demonstrate the power of idealized numerical simulations in probing complex physical processes and interpreting observational data.

● 其他

1. 欢迎全体师生积极参与学术报告和科研讨论，并鼓励与来访学者交流互动，共同探讨科研问题。张从尧博士在所期间为2026年1月7日-13日，办公室位于天体楼315，欢迎大家前往交流。

2. 此次来访是与来访学者建立长期合作的良好契机，请大家充分利用此次机会与来访学者探讨合作方向，推动形成论文等合作成果。