Oral Presentation

Fast tools for multi probe forward modelling

Author(s): Laura Reymond (ETH Zurich)

Presenter: Laura Reymond (ETH Zurich)

In this talk, I will present CosmoGridV1, a suite of lightcone simulations for map-level cosmological inference. The simulation suite spans the wCDM model and includes a fiducial cosmology with 200 independent simulations and a benchmark set with larger boxes, higher particle counts and higher redshift resolution of shells.

I will then discuss?Ufalcon, a post-processing tool that projects these simulations into maps for a range of cosmological probes, including galaxy overdensity, weak-lensing convergence, CMB lensing, and the integrated Sachs-Wolfe (ISW) temperature perturbation.

Finally, I will introduce?SwiftCl, a fast and?differentiable?tool for computing angular power spectra beyond the Limber approximation. This tool enables multi-probe analysis for galaxy clustering, weak lensing, CMB lensing, and CMB ISW.