Shanghai Astronomical Observatory Astrophysics Colloquium

Title：Stellar Tides and Their Role in Orbital Evolution

Speaker: Meng Sun (NAOC）

Time：3:00 pm Mar.20th (Thursday)

Tencent Meeting：429-1540-0486 password: 6360

Location: Lecture Hall, 3rd floor

Abstract：

Tidal interactions play a fundamental role in shaping the evolution of binary systems, influencing orbital dynamics and probing stellar interiors. Since tidal effects depend on both orbital configurations and stellar structures, studying tides provides insights into the past evolution of binaries and the internal properties of stars. Traditional models often rely on approximations that may misestimate tidal dissipation effects. In this talk, I will introduce GYRE-Tides, an extended framework that numerically solves stellar tidal responses. I will highlight key improvements and explore broader applications of GYRE-Tides in binary system analysis.

CV：

Meng Sun is a faculty member at the National Astronomical Observatories of China (NAOC). Her research focuses on theoretical astrophysics, including stellar evolution, binary evolution, asteroseismology, and tidal physics. She is a core developer of GYRE-Tides and POSYDON, as well as a long-term user of the MESA code. Meng received her PhD in Astronomy from the University of Virginia. She then worked at the University of Wisconsin-Madison and Northwestern University as a CIERA Postdoctoral Fellow.

Koushare link to the recorded presentation