The mass-metallicity-kinematics relation of the stellar components of eagle galaxies
In this work, we study the stellar mass - stellar metallicity relation as a function of the morphokinematics of galaxies in EAGLE cosmological simulations. According to our findings, at a given stellar mass (Ai*), stellar metallicity shows a secondary dependence on the morpho-kinematics of galaxies,...
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2021
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/171597 |
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I19-R120-10915-1715972024-10-17T20:04:06Z http://sedici.unlp.edu.ar/handle/10915/171597 The mass-metallicity-kinematics relation of the stellar components of eagle galaxies Zenocratti, Lucas José De Rossi, M. E. Lara López, M. A. Theuns, T. 2021 2024-10-17T16:03:29Z en Ciencias Astronómicas galaxies: abundances galaxies: evolution galaxies: high-redshift galaxies: star formation cosmology: theory In this work, we study the stellar mass - stellar metallicity relation as a function of the morphokinematics of galaxies in EAGLE cosmological simulations. According to our findings, at a given stellar mass (Ai*), stellar metallicity shows a secondary dependence on the morpho-kinematics of galaxies, which is more evident towards high masses. At the high-mass end (Μ* > 1010 Mq), dispersion-supported systems show lower metallicities, on average. In addition, low-mass galaxies with higher rotational support are somewhat more metalpoor. 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. En este trabajo, estudiamos la relación masa estelar - metalicidad estelar como función de la cinemática interna y de la morfología en galaxias de la simulación cosmológica EAGLE. De acuerdo a lo que encontramos, para una dada masa estelar (Ai*), la metalicidad estelar muestra una dependencia secundaria con la morfología y la cinemática de las galaxias, que es más evidente hacia altas masas. En el extremo de altas masas (Μ* > 1010 Mq), aquellos sistemas soportados por dispersión de velocidades muestran en promedio menores metalicidades. Adicionalmente, galaxias de baja masa con mayor soporte rotacional son algo más pobres en metales. Las galaxias más masivas tienden a presentar morfologías más planas, siendo los sistemas prolados menos enriquecidos en promedio. A medida que el redshift z aumenta, las anteriores dependencias de la metalicidad con la morfo-cinemática se vuelven más fuertes a altas masas. Estas tendencias son consistentes con las dependencias de la relación masa estelar - metalicidad de gas con la fracción de gas, tasa de formación estelar y edad estelar, y la relación de estas últimas cantidades con la morfocinemática de las galaxias. Asociación Argentina de Astronomía Articulo Articulo http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ciencias Astronómicas galaxies: abundances galaxies: evolution galaxies: high-redshift galaxies: star formation cosmology: theory |
| spellingShingle |
Ciencias Astronómicas galaxies: abundances galaxies: evolution galaxies: high-redshift galaxies: star formation cosmology: theory Zenocratti, Lucas José De Rossi, M. E. Lara López, M. A. Theuns, T. The mass-metallicity-kinematics relation of the stellar components of eagle galaxies |
| topic_facet |
Ciencias Astronómicas galaxies: abundances galaxies: evolution galaxies: high-redshift galaxies: star formation cosmology: theory |
| description |
In this work, we study the stellar mass - stellar metallicity relation as a function of the morphokinematics of galaxies in EAGLE cosmological simulations. According to our findings, at a given stellar mass (Ai*), stellar metallicity shows a secondary dependence on the morpho-kinematics of galaxies, which is more evident towards high masses. At the high-mass end (Μ* > 1010 Mq), dispersion-supported systems show lower metallicities, on average. In addition, low-mass galaxies with higher rotational support are somewhat more metalpoor.
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. |
| format |
Articulo Articulo |
| author |
Zenocratti, Lucas José De Rossi, M. E. Lara López, M. A. Theuns, T. |
| author_facet |
Zenocratti, Lucas José De Rossi, M. E. Lara López, M. A. Theuns, T. |
| author_sort |
Zenocratti, Lucas José |
| title |
The mass-metallicity-kinematics relation of the stellar components of eagle galaxies |
| title_short |
The mass-metallicity-kinematics relation of the stellar components of eagle galaxies |
| title_full |
The mass-metallicity-kinematics relation of the stellar components of eagle galaxies |
| title_fullStr |
The mass-metallicity-kinematics relation of the stellar components of eagle galaxies |
| title_full_unstemmed |
The mass-metallicity-kinematics relation of the stellar components of eagle galaxies |
| title_sort |
mass-metallicity-kinematics relation of the stellar components of eagle galaxies |
| publishDate |
2021 |
| url |
http://sedici.unlp.edu.ar/handle/10915/171597 |
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