Simulating the Cosmological Structures

The small density inhomogeneities left over from the period of fast initial expansion of the universe gradually grew under the force of gravity, and eventually formed the galaxies and large-scale structures which we see today. Within this project we will be using the results from large, state-of-the-art numerical N-body simulations on supercomputers aimed at understanding this process. In particular, we will study the non-linear evolution of structures - clustering, sub-structures and internal properties of galactic and cluster dark matter halos, redshift-space distortions and others. We will be comparing these features to data from large galaxy surveys in order to derive the fundamental parameter describing the universe we live in.