Chemical Evolution of the Stellar and Gaseous Components of Galaxies in   Hydrodynamical Cosmological Simulations
  We present preliminary results on the effects of mergers on the chemical properties of galactic objects in hierarchical clustering scenarios. We adopt a hydrodynamical chemical code that allows to describe the coupled evolution of dark matter and baryons within a cosmological context. We found that disk-like and spheroid-like objects have distinctive metallicity patterns that may be the result of different evolution. 
S. A. Cora (Observatorio de La Plata, Argentina) P. B. Tissera   (Instituto de Astronomia y Fisica del Espacio, Argentina), ...