ANALYSIS OF GALAXY FORMATION WITH HYDRODYNAMICS

We present a hydrodynamical code based on the smoothed particle hydrod ynamics (SPH) technique implemented in an AP3M code that is aimed at s olving the hydrodynamical and gravitational equations in a cosmologica l frame. We analyse the ability of the code to reproduce standard test s and perform numerical simulations to study the formation of galaxies in a typical region of a cold dark matter (CDM) model. These numerica l simulations include gas and dark matter particles and take into acco unt physical processes such as shock waves, radiative cooling and a si mplified model of star formation. We analyse the astrophysical propert ies of the galactic objects in different models.