The Mass-Metallicity relation in galaxies of different morphological types

摘要

By means of chemical evolution models of different morphological types, we study themass-metallicity (MZ) relation and its evolution with redshift. Our aim is to understand the role ofgalaxies of different morphological types in the MZ relation at various redshift. One major resultis that at high redshift, the majority of the galaxies falling on the MZ plot are apparently proto-ellipticals. Finally, we show some preliminary results of a study of the MZ relation in a frameworkof hierarchical galaxy formation.