Welcome to the home page of the Galaxies and Cosmology Theory group led by Annalisa Pillepich.


We focus on modeling and understanding the formation and evolution of cosmic structures and galaxies in the context of the standard cosmological model and its plausible alternatives.


  1. to provide a self-consistent theoretical framework for the interpretation of observations pertaining the Local Universe, as well as galaxies at higher redshifts and in diverse environments
  2. to advance the modeling of baryonic processes in galaxy formation, and therefore to quantify their effects onto the underlying DM structures
  3. to ultimately enhance the reliability of galaxies and galaxy clusters as tools to refine and test the fundamentals of the ΛCDM model

Science Keywords

Milky Way’s Structure and Assembly; Local Group
Stellar Haloes and IntraCluster Light
Cluster of Galaxies and Evolution of Galaxies in dense Environments
Clusters as Cosmological Probes and Large-Scale Structure of the Universe
Dark Energy and the Nature of Dark Matter

Main Methods

Gravity+Hydrodynamics numerical simulations of cosmological volumes and individual galaxies, with N-body, SPH and moving-mesh codes.

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