Galaxy evolution in cosmological simulations with outflows - II. Metallicities and gas fractions
Galaxy evolution in cosmological simulations with outflows - II. Metallicities and gas fractions
We use cosmological hydrodynamic simulations to investigate how inflows, star formation, and outflows govern the the gaseous and metal content of galaxies. In our simulations, galaxy metallicities are established by a balance between inflows and outflows as governed by the mass outflow rate, implying that the mass-metallicity relation reflects how …