Connection between gas-phase metallicity and morpho-kinematics of galaxies in EAGLE simulations

ZENOCRATTI, LUCAS JESÚS; DE ROSSI, MARÍA EMILIA; LARA-LÓPEZ, M.A.; THEUNS, TOM

Workshop; III Workshop "Chemical Abundances in Gaseous Nebulae: from the Milky Way to the early universe"; 2021

We study the stellar mass-gas-phase metallicity relation (MZR) as a function of the internal kinematics and morphology of galaxies in EAGLE cosmological simulations. We found that, at a given stellar mass (M*), gas-phase metallicity shows secondary dependences on internal kinematics of galaxies and their morphologies. At the low-mass / high-mass ends (M* < 10**10 Msun / M* > 10**10Msun), systems with higher rotational support and flatter morphologies show lower / higher metallicities, on average. For satellite galaxies, these trends tend to be stronger and show a larger scatter. These results are consistent with the dependence of the MZR on gas fraction, star formation rate and stellar age, and the relation of the latter quantities with galaxy morpho-kinematics. As the redshift z increases, those aforementioned behaviours tend to become weaker at low masses and stronger at high masses.p { margin-bottom: 0.1in; line-height: 115%; background: transparent }