GECO: Galaxy Evolution COde – A new semi-analytical model of galaxy formation

Semi-analytical Galaxy Formation Models and the High Redshift Universe

Semi-analytical models of galaxy formation based on hierarchical clustering now make a wide range of predictions for observable properties of galaxies at low and high redshift. This article concentrates on 2 aspects: (1) Self-consistent modelling of dust absorption predicts a mean UV extinction AUV ∼ 1 mag, depending only weakly on redshift, and similar to observational estimates. (2) The model...

Galaxy Formation and Evolution

Numerical Galaxy Catalog -i. a Semi-analytic Model of Galaxy Formation with N -body Simulations

We construct the Numerical Galaxy Catalog (νGC), based on a semi-analytic model of galaxy formation combined with high-resolution N -body simulations in a Λ-dominated flat cold dark matter (ΛCDM) cosmological model. The model includes several essential ingredients for galaxy formation, such as merging histories of dark halos directly taken from N -body simulations, radiative gas cooling, star f...

Galaxy modelling II . Multi - wavelength faint counts from a semi - analytic model of galaxy formation

This paper predicts self-consistent faint galaxy counts from the UV to the submm wavelength range. The stardust spectral energy distributions described in Devriendt et al. (1999) (Paper I) are embedded within the explicit cosmological framework of a simple semi-analytic model of galaxy formation and evolution. We begin with a description of the non-dissipative and dissipative collapses of primo...

Semi-analytical model of galaxy formation with high-resolution N-body simulations

We model the galaxy formation in a series of high-resolution N-body simulations using the semi-analytical approach. Unlike many earlier investigations based on semi-analytical models, we make use of the subhalos resolved in the N -body simulations to follow the mergers of galaxies in dark halos, and we show that this is pivotal in modeling correctly the galaxy luminosity function at the bright ...