J/ApJ/943/37ivo://CDS.VizieR/J/ApJ/943/37doi:10.26093/cds/vizier.19430037CDSBackhaus B.E.Bridge J.S.Trump J.R.Cleri N.J.Papovich C.,Simons R.C.Momcheva I.Holwerda B.W.Ji Z.Jung I.Matharu J.2025-02-24T20:13:59Z2025-01-07T08:04:47ZCDS support team

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

cds-question@unistra.frgalaxiesspectroscopyvisible-astronomyinfrared-astronomyactive-galactic-nucleiWe investigate spatially resolved emission-line ratios in a sample of 219 galaxies (0.6<z<1.3) detected using the G102 grism on the Hubble Space Telescope Wide Field Camera 3 taken as part of the CANDELS Ly{alpha} Emission at Reionization survey to measure ionization profiles and search for low-luminosity active galactic nuclei (AGN). We analyze [OIII] and H{beta} emission-line maps, enabling us to spatially resolve the [OIII]/H{beta} emission-line ratio across the galaxies in the sample. We compare the [OIII]/H{beta} ratio in galaxy centers and outer annular regions to measure ionization differences and investigate the potential of sources with nuclear ionization to host AGN. We investigate some of the individual galaxies that are candidates to host strong nuclear ionization and find that they often have low stellar mass and are undetected in X-rays, as expected for low-luminosity AGN in low-mass galaxies. We do not find evidence for a significant population of off-nuclear AGN or other clumps of off-nuclear ionization. We model the observed distribution of [OIII]/H{beta} spatial profiles and find that most galaxies are consistent with a small or zero difference between their nuclear and off-nuclear line ratios, but 6%-16% of galaxies in the sample are likely to host nuclear [OIII]/H{beta} that is ~0.5dex higher than in their outer regions. This study is limited by large uncertainties in most of the measured [OIII]/H{beta} spatial profiles; therefore, deeper data, e.g., from deeper HST/WFC3 programs or from JWST/NIRISS, are needed to more reliably measure the spatially resolved emission-line conditions of individual high-redshift galaxies.2023ApJ...943...37Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/943/37CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/720/368 : Color-magnitude relations of galaxies in CDFs (Xue+, 2010)J/ApJ/763/133 : Broad-line AGN with host galaxy colors (Trump+, 2013)J/ApJS/214/24 : 3D-HST+CANDELS catalog (Skelton+, 2014)J/ApJ/795/165 : Line ratios in z~2-3 gal. from KBSS-MOSFIRE (Steidel+, 2014)J/ApJ/802/89 : Luminosity function of X-ray-selected AGNs (Buchner+, 2015)J/ApJS/225/27 : 3D-HST Survey: grism spectra master cat. (Momcheva+, 2016)J/ApJ/827/74 : [NII]/H{alpha} ratio in gal. with KMOS^3D^ (Wuyts+, 2016)J/ApJS/224/15 : Improved 2Ms and 250ks Chandra catalogs (Xue+, 2016)J/ApJS/228/2 : Chandra Deep Field-South survey: 7Ms sources (Luo+, 2017)J/ApJS/243/22 : CANDELS/SHARDS multiwavelength cat. in GOODS-N (Barro+, 2019)J/ApJ/898/171 : CLEAR. II. SFRs of quiescent gal. (Estrada-Carpenter+, 2020)J/ApJ/923/203 : CLEAR: HST grism obs. of CANDELS galaxies (Simons+, 2021)J/MNRAS/501/1028 : Galaxies at z=1-3 lensed by six HFF clusters (Yang+, 2021)J/ApJ/933/87 : F125W and UV mag of 6.0<z<8.2 galaxies cand. (Jung+, 2022)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/943/37https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/943/37http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/943/37https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/943/37https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/943/37http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/943/37GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/943/37/table1 (with the integrated inner- and outer-aperture ratio measurements along with the stellar mass, redshift, SFR, and effective radius of the galaxies)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/943/37/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/943/37/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/943/37/table1?GETtext/xml+votable180.050000true53.23767853-27.685729980.0055555555555555566/11252 35935https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/943/37?format=asciiOpticalInfrareddefaultJ/ApJ/943/37/table1with the integrated inner- and outer-aperture ratio measurements along with the stellar mass, redshift, SFR, and effective radius of the galaxiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFieldObject Field ("GOODS-S" or "GOODS-N")meta.id;obs.fieldcharID[10512/49902] Object CLEAR IDmeta.id;meta.mainintInt-Ratio[0.45/12.21] Integrated log([OIII]/Hb) line ratiospect.line.intensity;em.line.OIII;em.line.Hbetafloate_Int-Ratio[0.04/4.1] Uncertainty in Int-Ratiostat.error;spect.line.intensity;arith.ratiofloatIn-Ratio[0.3/10.54] Inner log([OIII]/Hb) line ratiospect.line.intensity;em.line.OIII;em.line.Hbetafloate_In-Ratio[0.1/11] Uncertainty in In-Ratiostat.error;spect.line.intensity;arith.ratiofloatOut-Ratio[0.28/8.23] Outer log([OIII]/Hb) line ratiospect.line.intensity;em.line.OIII;em.line.Hbetafloate_Out-Ratio[0.2/9] Uncertainty in Out-Ratiostat.error;spect.line.intensity;arith.ratiofloatMass[8.3/11] Log stellar masslog(solMass)phys.massfloatz[0.7/1.3] Redshiftsrc.redshiftfloatSFR[-0.2/2.8] Log Star Formation Rate from Hb luminositylog(solMass.yr**-1)phys.SFRfloatR50[0.02/1] Effective radiuskpcphys.size.radiusfloatS21Display data from Simons+ 2021, J/ApJ/923/203meta.ref.urlintnullableSimbadNameSimbad column added by the CDSmeta.idcharnullableNEDnameNED column added by the CDSmeta.idchar_RAPositions from 3D-HST+CANDELS catalog (Skelton+, 2014, J/ApJS/214/24) (right ascension part)degpos.eq.ra;meta.main_DEPositions from 3D-HST+CANDELS catalog (Skelton+, 2014, J/ApJS/214/24) (declination part)degpos.eq.dec;meta.main