J/ApJ/964/59ivo://CDS.VizieR/J/ApJ/964/59CDSLewis Z.J.Andrews B.H.Bezanson R.Maseda M.Bell E.F.Dave R.,D'Eugenio F.Franx M.Gallazzi A.de Graaff A.Kaushal Y.,Nersesian A.Newman J.A.van der Wel A.Wu P.-F.2026-07-28T10:15:24Z2026-07-28T11:09:20ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frgalaxiesspectroscopyvisible-astronomyredshiftedextinctionchemical-abundancesThe massive end of the gas-phase mass-metallicity relation (MZR) is a sensitive probe of active galactic nuclei (AGN) feedback that is a crucial but highly uncertain component of galaxy evolution models. In this paper, we extend the z~0.7 MZR by ~0.5dex up to log(M*/M_{sun}_)~11.1. We use extremely deep VLT VIMOS spectra from the Large Early Galaxy Astrophysics Census (LEGA-C) survey to measure metallicities for 145 galaxies. The LEGA-C MZR matches the normalization of the z~0.8 DEEP2 MZR where they overlap, so we combine the two to create an MZR spanning from 9.3 to 11.1 log(M*/M_{sun}_). The LEGA-C+DEEP2 MZR at z~0.7 is offset to slightly lower metallicities (0.05-0.13 dex) than the z~0 MZR, but it otherwise mirrors the established power-law rise at low/intermediate stellar masses and asymptotic flattening at high stellar masses. We compare the LEGA-C+DEEP2 MZR to the MZR from two cosmological simulations (IllustrisTNG and SIMBA), which predict qualitatively different metallicity trends for high-mass galaxies. This comparison highlights that our extended MZR provides a crucial observational constraint for galaxy evolution models in a mass regime where the MZR is very sensitive to choices about the implementation of AGN feedback.2024ApJ...964...59Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/964/59CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/373 : The fourth UltraVISTA data release (DR4) (Moneti+, 2019)J/ApJ/617/240 : Oxygen abundances in the GOODS-North field (Kobulnicky+, 2004)J/MNRAS/404/1639 : MILES base models & new line index system (Vazdekis+, 2010)J/A+A/544/A156 : UltraVISTA Catalogue Release DR1 (McCracken+, 2012)J/ApJ/765/140 : Stacked spectra of SDSS star forming galaxies (Andrews+, 2013)J/ApJ/777/18 : Stellar mass functions of galaxies to z=4 (Muzzin+, 2013)J/ApJS/206/8 : COSMOS/UltraVISTA Ks-selected catalogs v4.1 (Muzzin+, 2013)J/MNRAS/469/2121 : Mass-metallicity relations with CALIFA (Sanchez+ 2017)J/ApJS/239/27 : LEGA-C DR2: galaxies in the COSMOS field (Straatman+, 2018)J/MNRAS/484/3042 : The gas-phase mass-metallicity relation (Sanchez+, 2019)J/ApJ/913/103 : SED modelling of LEGA-C & HST massive gal. (de Graaff+, 2021)J/ApJ/923/11 : Stellar kinematics of LEGA-C galaxies (van Houdt+, 2021)J/ApJ/927/164 : Stellar population properties from LEGA-C DR2 (Borghi+, 2022)J/ApJ/928/126 : Dynamical masses of z~0.8 gal. from LEGA-C (Straatman+, 2022)J/ApJS/256/44 : LEGA-C DR3: spectra of 0.6<z<1 gal. (van der Wel+, 2021)J/ApJ/936/9 : LEGA-C parameters for 877 galaxies (Van der Wel+, 2022)J/ApJ/961/118 : Star formation histories of LEGA-C galaxies (Kaushal+, 2024)J/A+A/708/A290 : LEGA-C stellar pop. scaling relations. II (Gallazzi+, 2026)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/964/59https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/964/59http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/964/59https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/964/59https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/964/59http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/964/59GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/964/59/table1 (LEGA-C metallicities)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/964/59/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/964/59/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/964/59/table1?GETtext/xml+votable180.050000true150.14722.3371750.0055555555555555565/6814 6/27247https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/964/59?format=asciiOpticaldefaultJ/ApJ/964/59/table1LEGA-C metallicitiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[MMS2013][6057/256256] Galaxy LEGA-C DR3 ID from van der Wel+ 2021, J/ApJS/256/44meta.id;meta.mainintMask[1/102] LEGA-C slit maskmeta.number;obsintz[0.59/0.84] Spectroscopic redshiftsrc.redshiftfloatlogMs[9.8/11.1] Log of stellar masslog(solMass)phys.massfloat[OII]/Hb[0.6/4.5] Dereddened [OII]3727 flux relative to H{beta}spect.line.intensity;arith.ratiofloate_[OII]/Hb[0.02/0.8] Uncertainty in [OII]/Hb (1)stat.error;spect.line.intensity;arith.ratiofloat[OIII]/Hb[0.05/1.9] Dereddened [OIII]5007 flux relative to H{beta}spect.line.intensity;arith.ratio;em.line.OIIIfloate_[OIII]/Hb[0.01/0.3] Uncertainty in [OIII]/Hb (1)stat.error;spect.line.intensity;arith.ratiofloatAV[0.06/3.7] Nebular extinction, A_V_magphys.absorptionfloate_AV[0.04/1.01] Lower uncertainty on AV (1)magstat.error;stat.min;phys.absorptionfloatE_AV[0.09/1.1] Upper uncertainty on AV (1)magstat.error;stat.max;phys.absorptionfloatMetal[8.49/9] Gas-phase metallicity, 12+log(O/H)phys.abund.Zfloate_Metal[0.02/0.07] Lower uncertainty on Metal (1)stat.error;stat.min;phys.abund.ZfloatE_Metal[0.02/0.07] Upper uncertainty on Metal (1)stat.error;stat.max;phys.abund.ZfloatSimbadSimbad column added by the CDSmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main