Jun 5 – 6, 2025
ETH Zurich
UTC timezone

Opportunities and challenges in analyzing 10’000 gravitational lenses to shed light on dark matter and dark energy

Jun 5, 2025, 2:00 PM
15m
Siemens Auditorium (HIT E 51) (ETH Zurich)

Siemens Auditorium (HIT E 51)

ETH Zurich

Wolfgang-Pauli-Strasse 27 HIT Building CH-8093 Zürich
H0 Measurement H0 Measurement

Speakers

Simon Birrer (Stony Brook University) Simon Birrer

Description

Strong gravitational lenses have provided great insights into the expansion history of the universe and the dark matter distribution from clusters down to sub-galactic scales.
Current state-of-the-art measurements involving strong gravitational lensing are based on samples of order a dozen gravitational lenses. This current decade, with the onset of wide and deep surveys, such as LSST, Euclid and Roman, 10’000s of gravitational lenses will be discovered. With these numbers come great opportunities and challenges. New methods and approaches have to be chosen to utilize such a large sample to maintain accuracy at increased precision. In this talk, I will go through the challenges and methods that hold promises in analyzing large samples of lenses. I will further outline the potential of new approaches that only become possible with large numbers of gravitational lenses to fully utilize the opportunities that are laying ahead of us.

Presentation materials