info:eu-repo/semantics/article
The mass-metallicity-kinematics relation of the stellar components of EAGLE galaxies
Fecha
2021-07Registro en:
Zenocratti, Lucas Jesús; de Rossi, Maria Emilia; Lara López, Maritza Arlene; Theuns, Tom; The mass-metallicity-kinematics relation of the stellar components of EAGLE galaxies; Asociación Argentina de Astronomía; Boletín de la Asociación Argentina de Astronomía; 62; 7-2021; 189-191
0571-3285
1669-9521
CONICET Digital
CONICET
Autor
Zenocratti, Lucas Jesús
de Rossi, Maria Emilia
Lara López, Maritza Arlene
Theuns, Tom
Resumen
In this work, we study the stellar mass -- stellar metallicity relation as a function of the morpho-kinematics of galaxies in {\sc{eagle}} cosmological simulations. According to our findings, at a given stellar mass ($M_\star$), stellar metallicity shows a secondary dependence on the morpho-kinematics of galaxies, which is more evident towards high masses. At the high-mass end ($M_\star \gtrsim 10^{10}~\rm{M}_\odot$), dispersion-supported systems show lower metallicities, on average. In addition, low-mass galaxies with higher rotational support are somewhat more metal-poor. More massive galaxies tend to exhibit flatter morphologies, being prolate systems less metal-enriched, on average. As the redshift $z$ increases, those aforementioned dependences of metallicity on kinematics and morphology tend to become stronger at high masses. These trends are consistent with the dependences of the stellar mass -- gas-phase metallicity relation on gas fraction, star formation rate and stellar age, and the relation of the latter quantities with galaxy morpho-kinematics.
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