CONICET | Buscador de Institutos y Recursos Humanos

In this work, we analyse the role of galactic winds on the evolution of the mass-metallicity relation (MZR) of galaxies by performing cosmological hydrodynamical simulations which include Supernova (SN) feedback. Our model is able to reproduce the observed patterns of the MZR since z ~ 3.5 and the slope of the yield-mass relation in the Local Universe. However, these simulations fail to describe the observed level of chemical evolution at a given stellar mass, suggesting that simulated galactic winds are too strong and that their efficiency needs to be revised. Nevertheless, it is encouraging that SN feedback acts in the right way ejecting metals towards the intergalactic medium (IGM) and generating a correlation between circular velocity and stellar mass, in general agreement with observations.z ~ 3.5 and the slope of the yield-mass relation in the Local Universe. However, these simulations fail to describe the observed level of chemical evolution at a given stellar mass, suggesting that simulated galactic winds are too strong and that their efficiency needs to be revised. Nevertheless, it is encouraging that SN feedback acts in the right way ejecting metals towards the intergalactic medium (IGM) and generating a correlation between circular velocity and stellar mass, in general agreement with observations.