The Multi-SAG project: filling the MultiDark simulations with semi-analytic galaxies

VEGA-MARTINEZ, CRISTIAN; CORA, SOFÍA ALEJANDRA; PADILLA, NELSON D.; MUÑOZ ARANCIBIA, ALEJANDRA M.; ORSI, ALVARO; RUIZ, ANDRÉS NICOLÁS

La Plata

Congreso; 58 Reunión Anual de la Asociación Argentina de Astronomía; 2015

The semi-analytical model SAG is a code of galaxy formation and evolution which is applied to halo catalogs and merger trees extracted from cosmological N-body simulations of dark matter. This contribution describes the project of constructing a catalog of simulated galaxies by adapting and applying the model SAG over two dark matter simulations of the spanish MultiDark Project publicly available. Those simulations have 3840³ particles, each, in boxes with sizes of 1000 Mpc/h and 400 Mpc/h respectively with Planck cosmological parameters. They cover a large range of masses and have halo mass resolutions of ∼10⁸ − 10¹⁰ Msun/h, therefore each simulation is able to produce more than 150 millions of simulated galaxies. A detailed description of the method is explained, and the first statistical results are shown.