报告题目：Multimessenger Probes of Dark Matter Environment Around Supermassive Black Holes

报告人：袁官文（University of Trento&INFN）

个人简介：袁官文2023年博士毕业于中国科学院紫金山天文台，现为意大利特伦托大学博士后研究员。研究兴趣包括暗物质现象学、超大质量黑洞、引力波和机器学习在天文学中的应用。

报告简介：SMBHs can strongly enhance the local dark matter density in their surroundings due to their strong gravity. This enhancement can significantly amplify dark matter-related processes, and make potential signals more detectable than in other astrophysical environments. Recent breakthroughs in stellar dynamics in Galactic Centre (GRAVITY/Keck), horizon-scale black hole imaging (EHT), stochastic gravitational-wave background (PTAs), and early-Universe galaxy observations (JWST) provide powerful, complementary probes of the environment around SMBHs. In this talk, I will discuss how these multimessenger observations can be used to search for signatures of dark matter near SMBHs, including WIMPs, ultralight dark matter, axion-like particles, and primordial black holes. I will highlight how dark matter may influence the SMBHs observations, and how SMBHs can serve as unique laboratories for testing dark matter physics. 

报告时间：2026年1月20日（周二）14:00

报告地点：仙林园区3-402室

欢迎大家参加！