Connecting Small and Large Scales: The Role of Feedback in Establishing Global Galaxy Properties over Cosmic Times
We use cosmological hydrodynamical simulations to understand the impact of stellar and AGN feedback on global galaxy properties at different redshifts and over a large range of masses and environments. We demonstrate how both stellar and AGN feedback are in combination responsible for shaping observed dynamical scaling relations of spheroidal and disk galaxies. Furthermore, we show how the interaction between dark and baryonic matter is affected by those feedback processes, and analyse the role of feedback processes in establishing the observed properties of spheroidal galaxies from z=2 to present day. Finally, we present evidence for a co-evolution of the total density profiles and the central dark matter fractions in spheroidal galaxies, and demonstrate how this is influenced by the AGN feedback.
The Interplay between Local and Global Processes in Galaxies,
- Pub Date:
- June 2016
- galaxies: evolution;
- dark matter;
- methods: numerical