CCA Seminar (Stefan Hilbert Talk)

Linking Theory and Observations in Cosmology with Simulations

Abstract:
Gravitational lensing effects allow us to study the the large-scale geometry and matter distribution of our Universe, and thereby provide unique insights into the nature of dark energy, dark matter, and their connection to the luminous matter. Numerical simulations are essential for the quantitative interpretation of gravitational lensing observations and for extracting accurate constraints for physical models of galaxies, the large-scale structure, and our whole Universe. I discuss applications of numerical simulations to better understand strong and weak gravitational lensing observations for cosmology.