Semi-Analytic Galaxies - I. Synthesis of environmental and star-forming regulation mechanisms

Understand

We present results from the semi-analytic model of galaxy formation SAG applied on the MultiDark simulation MDPL2.

• SAG features an updated supernova (SN) feedback scheme and a robust modelling of the environmental effects on satellite galaxies.
• This incorporates a gradual starvation of the hot gas halo driven by the action of ram pressure stripping (RPS), that can affect the cold gas disc, and tidal stripping (TS), which can act on all baryonic components.
• Galaxy orbits of orphan satellites are integrated providing adequate positions and velocities for the estimation of RPS and TS.