J/MNRAS/492/821ivo://CDS.VizieR/J/MNRAS/492/821doi:10.26093/cds/vizier.74920821CDSCurti M.Maiolino R.Cirasuolo M.Mannucci F.Williams R.J.Auger M.,Mercurio A.Hayden-Pawson C.Cresci G.Marconi A.Belfiore F.,Cappellari M.Cicone C.Cullen F.Meneghetti M.Ota K.Peng Y.,Pettini M.Swinbank M.Troncoso P.2025-01-29T20:11:12Z2023-05-23T13:50:15ZCDS support team

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

cds-question@unistra.frgalaxiesspectroscopygravitational-lensingchemical-abundancesredshiftedinfrared-astronomyWe present near-infrared observations of 42 gravitationally lensed galaxies obtained in the framework of the KMOS Lensed Emission Lines and VElocity Review (KLEVER) Survey, a programme aimed at investigating the spatially resolved properties of the ionized gas in 1.2<z<2.5 galaxies by means of a full coverage of the YJ, H, and K near-infrared bands. Detailed metallicity maps and gradients are derived for a subsample of 28 galaxies from reconstructed source-plane emission-line maps, exploiting the variety of different emission-line diagnostics provided by the broad wavelength coverage of the survey. About 85 per cent of these galaxies are characterized by metallicity gradients shallower than 0.05dex/kpc and 89 per cent are consistent with a flat slope within 3{sigma} (67 per cent within 1{sigma}), suggesting a mild evolution with cosmic time. In the context of cosmological simulations and chemical evolution models, the presence of efficient feedback mechanisms and/or extended star formation profiles on top of the classical 'inside-out' scenario of mass assembly is generally required to reproduce the observed flatness of the metallicity gradients beyond z~1. Three galaxies with significantly (>3{sigma}) 'inverted' gradients are also found, showing an anticorrelation between metallicity and star formation rate density on local scales, possibly suggesting recent episodes of pristine gas accretion or strong radial flows in place. Nevertheless, the individual metallicity maps are characterized by a variety of different morphologies, with flat radial gradients sometimes hiding non-axisymmetric variations on kpc scales, which are washed out by azimuthal averages, especially in interacting systems or in those undergoing local episodes of recent star formation.2020MNRAS.492..821Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/492/821CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/492/821https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/492/821http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/492/821https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/492/821https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/492/821http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/492/821GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/492/821/table2 (The full galaxies analysed in this work)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/492/821/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/492/821/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/492/821/table2?GETtext/xml+votable180.050000true177.1362519.500972220.0055555555555555566/17730 22949 28249 46474 46496 48423https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/492/821?format=asciiInfrareddefaultJ/MNRAS/492/821/table2The full galaxies analysed in this workrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintInstSpectrograph used for the observations (SINFONI or KMOS)meta.id;instrcharClusterGalaxy clustermeta.id.parentcharNameGalaxy namemeta.id;meta.maincharf_Name[*] Flag on Name (1)meta.codecharSimbadNameSimbad column added by the CDSmeta.idcharnullableRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainzSpectroscopic redshift (2)src.redshiftfloatELJMain emission lines detected above 3{sigma} in the J-bandmeta.id;spect.linecharELHMain emission lines detected above 3{sigma} in the H-bandmeta.id;spect.linecharELKMain emission lines detected above 3{sigma} in the K-bandmeta.id;spect.linecharJ/MNRAS/492/821/table3Global properties of the analysed samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintInstSpectrograph used for the observations (SINFONI or KMOS)meta.id;instrcharClusterGalaxy clustermeta.id.parentcharNameGalaxy namemeta.id;meta.maincharSFR? Star formation rate (1)solMass/yrphys.SFRfloatnullablee_SFR? Error on SFRsolMass/yrstat.error;phys.SFRfloatnullablef_SFR[*/**/ ] Flag on SFR (2)meta.codecharlogM*? Logarithm of the stellar mass derived by SED fittinglog(solMass)phys.massfloatnullablee_logM*? Error on logM*log(solMass)stat.errorfloatnullable12+log(O/H)? Oxygen abundance 12+log(O/H) (3)phys.abundfloatnullableE_12+log(O/H)? Upper error on 12+log(O/H)stat.error;stat.maxfloatnullablee_12+log(O/H)? Lower error on 12+log(O/H)stat.errorfloatnullablemuHa? Magnification factor {mu}_H{alpha}_ (4)stat.paramfloatnullablee_muHa? Error on muHastat.errorfloatnullablemumaps? Magnification factor {mu}_maps_ (5)stat.paramfloatnullableE_mumaps? Upper error on mumapsstat.error;stat.maxfloatnullablee_mumaps? Lower error on mumapsstat.errorfloatnullableJ/MNRAS/492/821/table4Radial gradients for galaxies for which they could be at least marginally resolvedFWHMyMinor-axis of the ellipse used to model the PSF in the source planephys.angSize.sminAxisfloatDiagCombination of strong-line diagnostics adopted to derive the metallicity map in the source plane for each galaxy (2)meta.id;spect.linecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintInstSpectrograph used for the observations (SINFONI or KMOS)meta.id;instrcharClusterGalaxy clustermeta.id.parentcharNameGalaxy namemeta.id;meta.maincharZgradMetallicity gradientkpc**-1arith.grad;phys.abundfloate_ZgradError on Zgradkpc**-1stat.errorfloatResol[Yes /Marg] Source resolution (1)meta.codecharFWHMxMajor-axis of the ellipse used to model the PSF in the source planephys.angSize.smajAxisfloat