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How to model black hole physics in cosmological simulations?

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If you have a question about this talk, please contact Tommaso Giannantonio.

Hydrodynamical cosmological simulations are one of the most powerful tools to study the formation and evolution of galaxies and their central black holes in the fully non-linear regime. Despite several recent successes in simulating Milky Way look-alikes, self-consistent, ab-initio models are still a long way off. In this talk I will briefly review numerical and physical uncertainties plaguing current state-of-the-art cosmological simulations of galaxy formation. I will then present global properties of galaxies and black holes as obtained with novel cosmological simulations, the so-called Illustris project, and discuss which feedback mechanisms are needed to reproduce realistic stellar masses and galaxy morphologies in the present day Universe. In the second part of the talk I will discuss novel ways how to model black hole physics on small scales and how to incorporate these methods in large-scale cosmological simulations.

This talk is part of the Cosmology Lunch series.

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