Title：From Stellar Oscillations to Insights: Techniques, Applications, and Outlook Speaker：Yaguang Li ( University of Hawaiʻi at Mānoa)

Time: Sep. 13th, Friday, 3:00 pm

Tencent Meeting：750-674-774 password: 6360

Location: Lecture Hall, 3rd floor

Abstract：

Asteroseismology, the study of stellar oscillations, probes the internal structure of stars. Recent breakthroughs in observations, enabled by space photometry missions (CoRoT, Kepler and TESS), have fortuitously allowed us to (1) obtain accurate stellar properties for a wide range of stars, and (2) scrutinize stellar interior physics, including composition, convection, rotation, and magnetism. These data, however, also highlight major deviations from our theoretical expectations. In this presentation, I provide an overview of the observational and theoretical advancements enabled by these datasets, focusing on solar-type and red-giant pulsators. I discuss how these advancements have led to new discoveries. I offer an outlook on the open questions in current studies, as well as how new surveys and missions can be positioned to address them.

CV：Yaguang Li is a Beatrice Watson Parrent Fellow at University of Hawaiʻi at Mānoa. His research extensively utilized  data from space missions and ground-based EPRV instruments (SONG, Keck/KPF, VLT/ESPRESSO). He is particularly interested in advancing observational and analytical techniques to interpret stellar oscillations. He received his PhD from the University of Sydney in 2023.