J/MNRAS/500/4229ivo://CDS.VizieR/J/MNRAS/500/4229doi:10.26093/cds/vizier/bg-fm-445CDSGillman S.Tiley A.L.Swinbank A.M.Dudzeviciute U.Sharples R.M.,Smail I.Harrison C.M.Bunker A.J.Bureau M.Cirasuolo M.Magdis G.E.,Mendel T.Stott J.P.2026-08-03T07:30:40Z2025-03-19T08:20:51ZCDS support team

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

cds-question@unistra.frgalaxiesstar-forming-regionsredshiftedchemical-abundancesvisible-astronomyWe present an analysis of the chemical abundance properties of ~650 star-forming galaxies at z~=0.6-1.8. Using integral-field observations from the K-band multi-object spectrograph (KMOS), we quantify the [NII]/H{alpha} emission-line ratio, a proxy for the gas-phase oxygen abundance within the interstellar medium. We define the stellar mass-metallicity relation at z~=0.6-1.0 and z~=1.2-1.8 and analyse the correlation between the scatter in the relation and fundamental galaxy properties (e.g. H{alpha} star formation rate, H{alpha} specific star formation rate, rotation dominance, stellar continuum half-light radius, and Hubble-type morphology). We find that for a given stellar mass, more highly star-forming, larger, and irregular galaxies have lower gas-phase metallicities, which may be attributable to their lower surface mass densities and the higher gas fractions of irregular systems. We measure the radial dependence of gas- phase metallicity in the galaxies, establishing a median, beam smearing corrected, metallicity gradient of {DELTA}Z/{DELTA}R=0.002+/-0.004dex/kpc, indicating on average there is no significant dependence on radius. The metallicity gradient of a galaxy is independent of its rest-frame optical morphology, whilst correlating with its stellar mass and specific star formation rate, in agreement with an inside-out model of galaxy evolution, as well as its rotation dominance. We quantify the evolution of metallicity gradients, comparing the distribution of {DELTA}Z/{DELTA}R in our sample with numerical simulations and observations at z~=0-3. Galaxies in our sample exhibit flatter metallicity gradients than local star- forming galaxies, in agreement with numerical models in which stellar feedback plays a crucial role redistributing metals.2021MNRAS.500.4229Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/500/4229CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/467/1965 : KMOS Redshift One Spectroscopic Survey (Harrison+, 2017)J/MNRAS/506/323 : Kinematic study of KGES galaxies (Tiley+, 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/500/4229https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/500/4229http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/500/4229https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/500/4229https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/500/4229http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/500/4229GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/500/4229/kross (KROSS data)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/500/4229/kross?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/500/4229/kross?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/500/4229/kross?GETtext/xml+votable180.050000true149.920272.283296940.005555555555555556Cone search capability for table J/MNRAS/500/4229/kges (KGES data)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/500/4229/kges?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/500/4229/kges?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/500/4229/kges?GETtext/xml+votable180.050000true53.25564611-27.682443890.0055555555555555565/4759 6/17690 19035 19057 19060 27256 27258 35935 35957https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/500/4229?format=asciiOpticaldefaultJ/MNRAS/500/4229/krossKROSS dataKIDKROSS IDmeta.id;meta.mainintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainMassStellar masssolMassphys.massdoublezBest redshift from H{alpha} linesrc.redshiftdoubleSFRH{alpha} star formation ratesolMass/Myrphys.SFR;spect.linedoubleNHratiogal? Galaxy integrated NII/H{alpha} indexmeta.codedoublenullablee_NHratiogal? Galaxy INtegrated NII/H{alpha} index errorstat.errordoublenullable12+log(O/H)? Galaxy integrated oxygen abundancephot.fluxdoublenullablee_12+log(O/H)? Galaxy integrated oxygen abundance errorstat.errordoublenullableJ/MNRAS/500/4229/kgesKGES dataSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintKGESKGES survey ID (KGES_NNN)meta.id;meta.maincharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainMstarStellar masssolMassphys.massdoublezBest redshift from H{alpha} linesrc.redshiftdoubleSFR? H{alpha} star formation ratesolMass/Myrphys.SFR;spect.linedoublenullableNHratiogal? Galaxy integrated NII/H{alpha} indexmeta.codedoublenullablee_NHratiogal? Galaxy integrated NII/H{alpha} index errorstat.errordoublenullable12+log(O/H)? Galaxy integrated oxygen abundancephot.fluxdoublenullablee_12+log(O/H)? Galaxy integrated oxygen abundance errorstat.errordoublenullable