Johann COHEN-TANUGI
(LPCA, Université Clermont-Auvergne & CNRS)
01/06/2026 14:15
Julien Larena
(LUPM, Université de Montpellier)
01/06/2026 15:30
Massive galaxies, acting as gravitational lenses, can form greatly distorted images of background galaxies in so called strong lensing events. When background galaxy and lens are almost aligned along the line of sight, the image take the shape of an Einstein ring whose shape encodes basic properties of the lens.
However, since lenses are not isolated objects in an otherwise perfectly...
