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http://hdl.handle.net/20.500.12386/31805
Titolo: | The evolution of the mass-metallicity relations from the VANDELS survey and the GAEA semi-analytic model | Autori: | FONTANOT, Fabio CALABRO, ANTONELLO Talia, Margherita MANNUCCI, FILIPPO CASTELLANO, MARCO CRESCI, GIOVANNI DE LUCIA, GABRIELLA GALLAZZI, Anna Rita HIRSCHMANN, Michaela Monika PENTERICCI, Laura XIE, Lizhi Amorin, Ricardo BOLZONELLA, MICOL BONGIORNO, ANGELA CUCCIATI, Olga Cullen, Fergus Fynbo, Johan P. U. Hathi, Nimish Hibon, Pascale McLure, Ross J. POZZETTI, Lucia |
Data pubblicazione: | 2021 | Rivista: | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | Numero: | 504 | Fascicolo: | 3 | Da pagina:: | 4481 | Abstract: | In this work, we study the evolution of the mass-metallicity relations (MZRs) as predicted by the GAlaxy Evolution and Assembly (GAEA) semi-analytic model. We contrast these predictions with recent results from the VANDELS survey, which allows us to expand the accessible redshift range for the stellar MZR up to z ~ 3.5. We complement our study by considering the evolution of the gas-phase MZR in the same redshift range. We show that GAEA is able to reproduce the observed evolution of the z < 3.5 gas-phase MZR and z < 0.7 stellar MZR, while it overpredicts the stellar metallicity at z ~ 3.5. Furthermore, GAEA also reproduces the so-called fundamental metallicity relation (FMR) between gas-phase metallicity, stellar mass, and star formation rate (SFR). In particular, the gas-phase FMR in GAEA is already in place at z ~ 5 and shows almost no evolution at lower redshift. GAEA predicts the existence of a stellar FMR that is, however, characterized by a relevant redshift evolution, although its shape follows closely the gas-phase FMR. We also report additional unsolved tensions between model and data: the overall normalization of the predicted MZR agrees with observations only within ~0.1 dex; the largest discrepancies are seen at z ~ 3.5 where models tend to slightly overpredict observed metallicities; the slope of the predicted MZR at fixed SFR is too steep below a few M<SUB>⊙</SUB> yr<SUP>-1</SUP>. Finally, we provide model predictions for the evolution of the MZRs at higher redshifts, which would be useful in the context of future surveys, like those that will be performed with James Webb Space Telescope. | URI: | http://hdl.handle.net/20.500.12386/31805 | URL: | https://academic.oup.com/mnras/article/504/3/4481/6258419 http://arxiv.org/abs/2104.08295v2 |
ISSN: | 0035-8711 | DOI: | 10.1093/mnras/stab1213 | Bibcode ADS: | 2021MNRAS.504.4481F | Fulltext: | open |
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