Cosmology Seminar: Alexandre Refregier

Alexandre Refregier is a professor at the physics department of the ETH, Zürich, Switzerland

Cosmological Weak Lensing

Weak gravitational lensing is a unique technique  to map the distribution of dark matter in the universe. It is also a sensitive probe of large scale structures in the universe and cosmological parameters. I will first briefly describe the principles of weak lensing. I will then review the current observational status of this field, highlighting several new measurements especially from the ongoing Dark Energy Survey (DES). I will then discuss the status of tensions between cosmological probes and results for a new integrated approach to combine them.

Organizer

Benjamin Racine and Bridget Falck
Published Sep. 4, 2017 10:17 PM - Last modified Sep. 4, 2017 10:17 PM