Institute for Advanced Study / Princeton University Joint Astrophysics Colloquium

How well can we estimate stellar ages?

Good estimations of stellar ages are important for a wide range of science cases, from understanding the evolution and habitability of exoplanetary systems to tracking back the cosmic history of our own and other galaxies. These ages, however, are not directly measured, but rather inferred from theoretical models or empirical calibrations using a variety of techniques. I will discuss the current precision and accuracy of isochrone-based, rotation-based, and asteroseismically inferred ages, as well as some of the current challenges of each method. Finally, I will discuss some of the recent and ongoing work in my group to increase the number of stars with well-measured ages, as well as some of the interesting stellar physics puzzles we've run into along the way.

Date & Time

April 02, 2024 | 11:00am – 12:00pm


Peyton Hall Auditorium


Jamie Tayar, University of Florida