General Events

Toward a Galactic Exoplanet Census

Feb 3, 2026   3:45 - 4:45 pm  
Astronomy Building
Astronomy
Sponsor
Department of Astronomy
Speaker
Dr. Samuel Yee
Contact
Daniel Franco
E-Mail
danielf9@illinois.edu
Phone
217-300-6769
Originating Calendar
Astronomy Colloquium Speaker Calendar

The discovery of thousands of exoplanets over the past 30 years affords us the opportunity to form and statistically test theories of planet formation across a wide range of conditions, but key gaps remain in the galactic exoplanet census. I will first present results from the TESS Grand Unified Hot Jupiter Survey, a major effort I led to achieve an order-of-magnitude advance in our demographic understanding of hot Jupiters. The next frontier in exoplanet demographics is to push beyond the solar neighborhood to understand how galactic environment shapes planet formation. I will discuss my group's work using giant planets as the first beacons of planetary systems in the galactic thick disk and beyond, ahead of near-future missions like Roman and PLATO which will reveal smaller planets in these galactic populations. Finally, I will discuss how these large-scale surveys enable the discovery of key benchmark systems that serve as laboratories for key physical processes like tidal inflation and orbital decay.

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