报告题目：Stars and Black Holes as Astrophysical Particle Factories
报告人：Tao Xu
报告时间：2026年11月4日 上午10:00-11:00
报告地点：理8栋230会议室
摘要：
Astrophysical objects provide natural laboratories for exploring fundamental physics. Particles can be produced in the hot stellar interiors of stars and in the strong gravitational environments of black holes. These processes can leave observable imprints on the emission spectra and evolutionary histories of astrophysical objects, opening new opportunities to study particle physics with astrophysical phenomena. In this talk, I will introduce how stars and primordial black holes can be used to study dark-sector particles, with a focus on axions. I will then highlight recent progress in identifying robust observational signatures that could help identify these new particles. I will show how future gamma-ray observations and stellar population surveys could not only reveal fascinating astrophysical objects but also transform them into powerful particle factories for probing physics beyond the Standard Model.
报告人简介：
Dr. Tao Xu is currently a postdoctoral fellow at the Jockey Club Institute for Advanced Study at the Hong Kong University of Science and Technology. Dr. Xu received his Ph.D. from Zhejiang University. He then worked as a postdoc associate at the Hebrew University of Jerusalem and the University of Oklahoma. Dr. Xu's research is broadly in astroparticle physics and cosmology, with a recent focus on dark matter detection and gravitational wave searches.