Evolution of the chemical enrichment and the mass–metallicity relation in CALIFA galaxies
Metadatos
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Oxford University Press
Materia
Galaxy: abundances Galaxies: evolution Galaxy: fundamental parameters
Fecha
2021-04-16Referencia bibliográfica
A Camps-Fariña... [et al.]. Evolution of the chemical enrichment and the mass–metallicity relation in CALIFA galaxies, Monthly Notices of the Royal Astronomical Society, Volume 504, Issue 3, July 2021, Pages 3478–3493, [https://doi.org/10.1093/mnras/stab1018]
Patrocinador
Consejo Nacional de Ciencia y Tecnologia (CONACyT) CB-285080 FC-2016-01-1916; Universidad Nacional Autonoma de Mexico PAPIIT-DGAPA-IN100519; European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant 839090; Spanish grant within the European Funds for Regional Development (FEDER) PGC2018-095317-B-C21Resumen
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 theMZR 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.