Abstract

Contributed Talk - Splinter Euclid

Wednesday, 20 September 2017, 17:30   (HS2)

How Accurate are Gravitational Lensing Simulations?

Stefan Hilbert^1,2, Alexandre Barreira^3
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.