The evolution of the mass-metallicity relations from the VANDELS survey and the gaea semi-analytic model
Research output: Contribution to journal › Journal article › Research › peer-review
Standard
The evolution of the mass-metallicity relations from the VANDELS survey and the gaea semi-analytic model. / Fontanot, Fabio; Calabro, Antonello; Talia, Margherita; Mannucci, Filippo; Castellano, Marco; Cresci, Giovanni; De Lucia, Gabriella; Gallazzi, Anna; Hirschmann, Michaela; 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.
In: Monthly Notices of the Royal Astronomical Society, Vol. 504, No. 3, 01.07.2021, p. 4481-4492.Research output: Contribution to journal › Journal article › Research › peer-review
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - The evolution of the mass-metallicity relations from the VANDELS survey and the gaea semi-analytic model
AU - Fontanot, Fabio
AU - Calabro, Antonello
AU - Talia, Margherita
AU - Mannucci, Filippo
AU - Castellano, Marco
AU - Cresci, Giovanni
AU - De Lucia, Gabriella
AU - Gallazzi, Anna
AU - Hirschmann, Michaela
AU - Pentericci, Laura
AU - Xie, Lizhi
AU - Amorin, Ricardo
AU - Bolzonella, Micol
AU - Bongiorno, Angela
AU - Cucciati, Olga
AU - Cullen, Fergus
AU - Fynbo, Johan P. U.
AU - Hathi, Nimish
AU - Hibon, Pascale
AU - McLure, Ross J.
AU - Pozzetti, Lucia
PY - 2021/7/1
Y1 - 2021/7/1
N2 - 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 similar to 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 similar to 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 similar to 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 similar to 0.1 dex; the largest discrepancies are seen at z similar to 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-circle dot yr(-1). 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.
AB - 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 similar to 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 similar to 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 similar to 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 similar to 0.1 dex; the largest discrepancies are seen at z similar to 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-circle dot yr(-1). 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.
KW - galaxies: abundances
KW - galaxies: evolution
KW - galaxies: formation
KW - STAR-FORMING GALAXIES
KW - SPECTROSCOPIC SURVEY
KW - STELLAR MASS
KW - CHEMICAL ABUNDANCES
KW - AGES
KW - CONSISTENT
KW - SPECTRA
KW - NEBULAE
KW - CANDELS
U2 - 10.1093/mnras/stab1213
DO - 10.1093/mnras/stab1213
M3 - Journal article
VL - 504
SP - 4481
EP - 4492
JO - Royal Astronomical Society. Monthly Notices
JF - Royal Astronomical Society. Monthly Notices
SN - 0035-8711
IS - 3
ER -
ID: 272413947