Stefano Borgani

INAF – Trieste Astronomical Observatory

torek, 22. 4. 2008, ob 15h v F6

I will review the role played by clusters of galaxies in the study of the formation of large-scale cosmic structures. I will first discuss how the evolution of the cluster population can be used to plae tight constraints on the Dark Matter and Dark Energy content of the Universe. I will then critically assess the reliability of these constraints and how they depend on the detailed knowledge of the properties of the hot baryons permetating clusters. In this context I will show how modern cosmological numerical simulations can be used to improve our knowledge of the physics of galaxy clusters and which are the direction of improvement of these simulations in the future.