J/ApJ/964/94ivo://CDS.VizieR/J/ApJ/964/94CDSCheng Y.Giavalisco M.Simons R.C.Ji Z.Stroupe D.Cleri N.J.2026-10-10T20:33:28Z2026-07-08T10:05:49ZCDS support team

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

cds-question@unistra.frspectral-energy-distributiongalaxiesphotometryspectroscopyredshiftedchemical-abundancesWe explore the relationships between the [O/H] gas-phase metallicity radial gradients and multiple galaxy properties for 238 star-forming galaxies at 0.6<z<2.6 selected from the CANDELS Ly{alpha} Emission at Reionization survey with stellar mass 8.5<logM*/M_{sun}_<10.5. The gradients cover the range from -0.11 to 0.22dex/kpc, with the median value close to 0. We reconstruct the nonparametric star formation histories (SFHs) of the galaxies with spectral energy distribution modeling using Prospector with more than 40 photometric bands from the Hubble Space Telescope, Spitzer, and ground-based facilities. In general, we find weak or no correlations between the metallicity gradients and most galaxy properties, including the mass-weighted age, recent star formation rate, dust attenuation, and morphology as quantified by both parametric and nonparametric diagnostics. We find a significant but moderate correlation between the gradients and the "evolutionary time," a temporal metric that characterizes the evolutionary status of a galaxy, with flatter gradients observed in more evolved galaxies. Also, there is evidence that galaxies with multiple star formation episodes in their SFHs tend to develop more negative gas-phase metallicity gradients (higher [O/H] at the center). We conclude that gas kinematics, e.g., radial inflows and outflows, is likely an important process in setting the gas-phase metallicity gradients, in addition to the evolution of the SFH radial profile. Since the gradients are largely independent of the galaxies' physical properties and only weakly dependent on their SFH, it would appear that the timescale of the gas kinematics is significantly shorter than the evolution of star formation.2024ApJ...964...94Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/964/94CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/hst : HST Archived Exposures Catalog (STScI, 2007)II/261 : GOODS initial results (Giavalisco+, 2004)J/AJ/128/163 : Galaxy morphological classification (Lotz+, 2004)J/ApJ/653/1027 : TKRS/GOODS-N Field galaxies (Weiner+, 2006)J/ApJ/706/1364 : SINS survey of high-z galaxies (Forster Schreiber+, 2009)J/ApJS/203/24 : Structural param. of gal. in CANDELS (van der Wel+, 2012)J/ApJS/207/24 : GOODS-S CANDELS multiwavelength catalog (Guo+, 2013)J/ApJS/214/24 : 3D-HST+CANDELS catalog (Skelton+, 2014)J/ApJS/225/27 : 3D-HST Survey: grism sp. master catalog (Momcheva+, 2016)J/A+A/587/A70 : CALIFA face-on spiral gal. oxygen (Sanchez-Menguiano+, 2016)J/ApJ/830/14 : SIGMA: Keck spectra of z~2 gal. in CANDELS (Simons+, 2016)J/ApJ/827/74 : [NII]/H{alpha} ratio in gal. with KMOS^3D^ (Wuyts+, 2016)J/MNRAS/478/4293 : 0.1<z<0.8 gal. gas-phase metallicity grad. (Carton+, 2018)J/ApJS/243/22 : CANDELS/SHARDS multi{lambda} cat. in GOODS-N (Barro+, 2019)J/A+A/625/A114 : Star-forming gal. over 0.35<z<2.25 (Jimenez-Andrade+, 2019)J/ApJ/887/80 : Gas phase oxygen abundances for HII regions (Kreckel+, 2019)J/MNRAS/492/821 : KLEVER Survey: metallicity maps and gradients (Curti+, 2020)J/ApJ/890/7 : Environment of gal. in the 5 CANDELS fields (Chartab+, 2020)J/ApJ/900/183 : HST grism sp. of strong-lensing gal. clusters (Wang+, 2020)J/MNRAS/500/4229 : Star-forming galaxies at z~=0.6-1.8 (Gillman+, 2021)J/A+A/649/A22 : ASTRODEEP-GS43 catalogue (Merlin+, 2021)J/ApJ/923/203 : CLEAR: HST grism obs. of CANDELS gal. (Simons+, 2021)J/A+A/672/A27 : Galaxies outside clusters (Bilek+, 2023)J/ApJS/275/17 : UVCANDELS: zphot & galaxy physical param. (Mehta+, 2024)http://archive.stsci.edu/hlsp/clear : CLEAR on MASThttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/964/94https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/964/94http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/964/94https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/964/94https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/964/94http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/964/94GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/964/94/table1 (The galaxy properties and SFH characteristics derived from spectral energy distribution (SED) fittings)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/964/94/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/964/94/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/964/94/table1?GETtext/xml+votable180.050000true189.143079462.196680.0055555555555555566/11252 35935https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/964/94?format=asciidefaultJ/ApJ/964/94/table1The galaxy properties and SFH characteristics derived from spectral energy distribution (SED) fittingsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFieldField identifier (GOODSN or GOODSS)meta.id;obs.fieldcharID[7717/27421] Identifier within Field (1)meta.id.part;meta.mainintz[0.7/2.5] Redshiftsrc.redshiftfloatlogM[8.3/11.4] Log galaxy masslog(solMass)phys.massfloatZslope[-0.11/0.16] Metallicity gradient, dex/kpc (2)kpc**-1arith.grad;phys.abundfloatS21Display the data from Simons+ 2021, J/ApJ/923/203 within 0.7"meta.ref.urlcharrSFR[0.37/70] Most recent bin Star Formation RatesolMass/yrphys.SFRfloattmw[0.79/12.5] Mass-weighted ageGyrtime.age;arith.difffloattTot[0.8/10.6] Total time length of star-formation (3)Gyrtime.durationfloatt1[0.5/6.7] Time length of late period of star formation (3)Gyrtime.durationfloatt2[0.3/9.1] Time length of early period of star formation (3)Gyrtime.durationfloatSkewness[-7.1/7.5] Third standardized moment of stellar ages (3)stat.fit.paramfloat_RAPositions from the CANDELS GOODS-N and GOODS-S catalogs sent by the author (right ascension part)degpos.eq.ra;meta.main_DEPositions from the CANDELS GOODS-N and GOODS-S catalogs sent by the author (declination part)degpos.eq.dec;meta.main