IAFE   05512
INSTITUTO DE ASTRONOMIA Y FISICA DEL ESPACIO
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Metallicity of gas-rich galaxy mergers: numerical simulations.
Autor/es:
PEREZ J.; MICHEL-DANSAC L.; TISSERA, P.
Lugar:
Santiago de Chile
Reunión:
Workshop; Supercomputing techniques in Astrophysics: International school and workshop; 2010
Resumen:
Based on current observational results, which show that interacting galaxies have low nuclear abundances, we perform a set ofhydrodynamical simulations of disc merging galaxies in order to analyse the role of galaxy interactions in the redistribution of metals. We find that the effect of tidal interaction becomes apparent since the first pericenter, producing low metallicity gas inflowfrom the outskirt to the nuclear region of each merging galaxies, which is responsible for flattening the metallicity gradients.Finally, we also discuss the effect of the SN feedback on this metal redistribution.