Abstract

Contributed Talk - Splinter Euclid

How Accurate are Gravitational Lensing Simulations?

Stefan Hilbert1,2, Alexandre Barreira3
1Exzellenzcluster Universe, Boltzmannstr. 2, 85748 Garching, Germany
2Ludwig-Maximilians-Universität, Universitäts-Sternwarte, Scheinerstr. 1, 81679 München, Germany
3Max-Planck-Institut für Astrophysik, Karl-Schwarzschild-Str. 1, 85748 Garching, Germany

The full science exploitation of Euclid requires very accurate predictions for key observables such as the gravitational lensing shear correlation functions. I present results from our project on the accuracy of numerical simulations of gravitational lensing, including a comparison study of various simulation codes in current use.