Poster Title: Chemical evolution of bulges of spiral galaxies: environmental and morphological influence.
Abstract: This project is aimed at studying the chemical evolution of bulges of spiral galaxies, with the goals to understand how much the properties of bulges differ from those of elliptical galaxies and to assess if the environment plays a significative role in the chemical evolution. To achieve these goals, up to now we observed 11 spiral galaxies in field and 9 in the Fornax and Pegasus cluster. Another run has planned for September 2003. We measured the main metallicity indexes Mg2, Mgb, Fe, MgFe, Hb and the velocity dispersion as function of the galactocentric radius, in order to determine the age and chemical abundances for bulges of galaxies with morphological type ranging from S0 to Sc. In this work we present preliminary results from the first 7 cluster galaxies, which will be compared in future with those obtained for spiral galaxies in the field and with the ellipticals both in cluster and field from published works.
Link to poster: N/A