Local metallicity in simulated galaxies

COLLACCHIONI, F.; CORREA, C. A.; LAGOS, CLAUDIA D P; CORA, S. A.

Rosario

Congreso; Reunión Anual de la Asociación Argentina de Astronomía; 2020

In the last decade, integral  eld spectroscopy has expanded our understanding of chemical evolutionof galaxies, giving evidence of a radial gradient of gas-phase metallicity. In this work, we use the state-of-art hydrodynamical simulation eagle to study the resolved, local properties of galaxies. We show that the local gas metallicity correlates with the stellar mass surface density and anti-correlates with the gas accretion. Resolved metallicity pro les acts as a good estimator of gas accretion, and can be used to understand the changes in the chemical enrichment of galaxies.