Search Results for author: Aurel Schneider

Found 3 papers, 1 papers with code

Cosmological constraints with deep learning from KiDS-450 weak lensing maps

no code implementations7 Jun 2019 Janis Fluri, Tomasz Kacprzak, Aurelien Lucchi, Alexandre Refregier, Adam Amara, Thomas Hofmann, Aurel Schneider

We present the cosmological results with a CNN from the KiDS-450 tomographic weak lensing dataset, constraining the total matter density $\Omega_m$, the fluctuation amplitude $\sigma_8$, and the intrinsic alignment amplitude $A_{\rm{IA}}$.

Cosmology and Nongalactic Astrophysics

Euclid preparation: II. The EuclidEmulator -- A tool to compute the cosmology dependence of the nonlinear matter power spectrum

1 code implementation12 Sep 2018 Euclid Collaboration, Mischa Knabenhans, Joachim Stadel, Stefano Marelli, Doug Potter, Romain Teyssier, Laurent Legrand, Aurel Schneider, Bruno Sudret, Linda Blot, Saeeda Awan, Carlo Burigana, Carla Sofia Carvalho, Hannu Kurki-Suonio, Gabriele Sirri

The absolute accuracy of the final nonlinear power spectrum is comparable to one obtained with N-body simulations, i. e. $\sim 1\%$ for $k\lesssim 1\, h\,{\rm Mpc}^{-1}$ and $z\lesssim 3. 5$.

Cosmology and Nongalactic Astrophysics

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