摘要

Hot gas plays a vital role in shaping galaxy formation and evolution. However, even though we live in a disk galaxy, we know very little about the distribution of this hot gas, and how it impacts the disk galaxy evolution via the so-called “circumgalactic medium”. In this talk, I will discuss several outstanding questions in this field, including problems such as the “missing galactic baryons” and “missing stellar feedback”. I will also discuss how addressing these questions can help understand galaxy formation and evolution processes in general, as well as the baryonic matter distribution in the universe.
 

报告人简介

方陶陶，厦门大学天文系教授，物理科学与技术学院院长兼天文系系主任。武汉大学本科，中国科技大学硕士，美国麻省理工学院博士。主要研究方向为宇宙大尺度结构、星系形成和演化。获美国 NASA Chandra Fellow、中国国家基金委杰出青年等。