Orateur
Description
The Euclid Satellite Mission expects to unveil the nature of dark energy and dark matter through the measurement of several cosmological probes, among which are the cluster number count. One main limitation for constraining cosmological parameters will be the determination of the Selection Function (SF) which characterizes the probability of detecting a cluster of a given mass and redshift. One way of determining it is from realistic simulated clusters, which are injected into the survey and then the detection procedure is re-applied. To do so, we intend to use the THE THREE HUNDRED project, a 324 cluster region sample extracted from the MDPL2 simulation, that were run using several semi-analytic and hydrodynamical codes. However, the high computational cost of hydrodynamical simulations does not allow to have a large volume of highly resolved galaxy clusters. In this paper, we use a calibrated version of the SAGE semi-analytical galaxy formation code with the new GIZMO-SIMBA high resolution hydrodynamical simulations in order to populate the high resolution dark matter only version of the THREE HUNDRED with galaxies reducing massively the computational cost. Then, we study the differences with the Euclid Survey in the clusters properties and the possible resolution limits of the different simulations.
