The chemistry of dwarf galaxies in simulated Milky Way-mass systems and how it relates to merger histories

FONT, ANDREEA S.; GRIMOZZI, SALVADOR E.; DE ROSSI, MARÍA EMILIA; EAGLE TEAM

Atenas

Workshop; COST MW-Gaia WG1/WG4 Workshop; 2022

This talk is about the chemistry of dwarf galaxies in simulated Milky Way-mass systems and how it relates to merger histories.  LCDM models predictions for surviving dwarf satellite galaxies agree well with observations. The [Fe/H] - M* relation for disrupted satellites in LCDM is offset compared with the relation for surviving satellites, in agreement with observations. However, the slope depends on the merger history of the MW-mass system. The MW is not quite typical for a galaxy for its mass: Recent merging history is less active than for a typical galaxy of its mass. Talk given by Andreea S. Font.