Evolution of the chemical enrichment and the mass-metallicity relation in CALIFA galaxies
Por:
Camps-Farina, A., Sanchez, S. F., Lacerda, E. A. D., Carigi, L., Garcia-Benito, R., Mast, D., Galbany, L.
Publicada:
1 jul 2021
Resumen:
We apply fossil record techniques to the CALIFA sample to study how
galaxies in the Local Universe have evolved in terms of their chemical
content. We show how the stellar metallicity and the mass-metallicity
relation (MZR) evolve through time for the galaxies in our sample and
how this evolution varies when we divide them based on their mass,
morphology, and star-forming status. We also check the impact of
measuring the metallicity at the centre or the outskirts. We find the
expected results that the most massive galaxies were enriched more
quickly, and that the MZR was steeper at higher redshifts. However, once
we separate the galaxies into morphology bins this behaviour is less
clear, which suggests that morphology is a primary factor in determining
how quickly a galaxy becomes enriched, but with mass determining the
final enrichment. We also find that star-forming galaxies (SFGs) appear
to be asymptotic in their chemical evolution; that is, the metallicity
of SFGs of any mass is very similar at recent times unlike several Gyr
ago.
Filiaciones:
Camps-Farina, A.:
(Corresponding Author), Univ Nacl Autonoma Mexico, Inst Astron, Apartado Postal 70-264, Ciudad De Mexico 04510, Mexico
Univ Nacl Autonoma Mexico, Inst Astron, Apartado Postal 70-264, Ciudad De Mexico 04510, Mexico
Sanchez, S. F.:
Univ Nacl Autonoma Mexico, Inst Astron, Apartado Postal 70-264, Ciudad De Mexico 04510, Mexico
Lacerda, E. A. D.:
Univ Nacl Autonoma Mexico, Inst Astron, Apartado Postal 70-264, Ciudad De Mexico 04510, Mexico
Carigi, L.:
Univ Nacl Autonoma Mexico, Inst Astron, Apartado Postal 70-264, Ciudad De Mexico 04510, Mexico
Garcia-Benito, R.:
Inst Astrofis Andalucia CSIC, POB 3004, E-18080 Granada, Spain
Mast, D.:
Observ Astron, Laprida 854,X5000BGR, Cordoba, Argentina
Consejo Invest Cient & Tecn Republ Argentina, Avda Rivadavia 1917,C1033AAJ, Caba, Argentina
Galbany, L.:
Univ Granada, Dept Fis Teor & Cosmos, E-18071 Granada, Spain
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