Seminar

Promises and challenges of the Roman Galactic Bulge Time Domain Survey

May 11, 2023

Etienne Bachelet

The Roman Galactic Bulge Time Domain Survey is expected to detect more than 30000 gravitational microlensing events, including thousands of cold planets, hundreds of free-floating planets and stellar remnants lenses. This will revolutionize our understanding of the exoplanet demographics, as well as planet formation mechanisms. I will present the microlensing technique and highlight its unique capabilities, as well as the challenges that will bring this unique dataset. In particular, I will discuss the methods used to measure the mass and distance of the microlenses.

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