J/ApJ/946/L35ivo://CDS.VizieR/J/ApJ/946/L35doi:10.26093/cds/vizier.19469035CDSMorishita T.Stiavelli M.2025-06-02T07:05:25Z2025-04-11T09:08:49ZCDS support team

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

cds-question@unistra.frgalaxiesphotometryredshiftedabsolute-magnitudeultraviolet-astronomyinfrared-sourcesextinctiongravitational-lensingThis paper highlights initial photometric analyses of JWST NIRCam imaging data in the sightline of SMACS0723, aiming to identify galaxies at redshift z>7. By applying a conservative Lyman-break selection followed by photometric-redshift analysis and visual inspection, we identify four F090W-dropout and two F150W-dropout sources, three of which were recently confirmed in an independent spectroscopic analysis to z=7.663, 7.665, and 8.499. We then supplement our sample with a photometric-redshift selection, and identify five additional candidates at 7<zphot<13. The NIRCam images clearly resolve all sources and reveal their subgalactic components that were not resolved/detected in the previous imaging by Hubble Space Telescope. Our spectral energy distribution analysis reveals that the selected galaxies are characterized by young stellar populations (median age of ~50Myr) of subsolar metallicity (~0.2Z_{sun}_) and little dust attenuation (A_V_~0.5). In several cases, we observe extreme H{beta}+[OIII] lines being captured in the F444W band and seen as color excess, which is consistent with their observed high star formation rate surface density. Eight of the 11 sources identified in this study appear in at least one of the recent studies (Adams+ 2023MNRAS.518.4755A; Atek+ 2023MNRAS.519.1201A; Donnan+ 2023MNRAS.518.6011D; Harikane+ 2023ApJS..265....5H; Yann+ 2023ApJ...942L...9Y) of the same fields, implying the high fidelity of our selection. We crossmatch all high-z galaxy candidates presented in the five studies with our catalog and discuss the possible causes of discrepancy in the final lists.2023ApJ...946L..35Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/946/L35CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/793/115 : UV-continuum slopes beta for z~4-8 galaxies (Bouwens+, 2014)J/ApJS/214/24 : 3D-HST+CANDELS catalog (Skelton+, 2014)J/ApJ/803/34 : z~4-10 galaxies from HST legacy fields (Bouwens+, 2015)J/ApJ/884/85 : RELICS: Reionization Lensing Cluster Survey (Coe+, 2019)J/ApJ/889/189 : Brightest high-z galaxies in RELICS clusters (Salmon+, 2020)J/ApJS/253/4 : SuperBoRG: search HST parallel imaging data (Morishita, 2021)J/A+A/666/L9 : SMACS J0723.3-7327 first JWST observations (Caminha+, 2022)J/ApJ/946/L40 : Galaxies in JWST obs. of SMACS J0723.3-7327 (Langeroodi+, 2023)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/946/L35https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/946/L35http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/946/L35https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/946/L35https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/946/L35http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/946/L35GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/946/L35/final (Physical properties of the final candidates (Tables 3 and 4))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/946/L35/final?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/946/L35/final?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/946/L35/final?GETtext/xml+votable180.050000true110.8343506-73.43450930.005555555555555556Cone search capability for table J/ApJ/946/L35/table6 (List of high-z candidates identified in the literature)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/946/L35/table6?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/946/L35/table6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/946/L35/table6?GETtext/xml+votable180.050000true110.83435-73.4345090.0055555555555555566/37395https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/946/L35?format=asciiUVInfrareddefaultJ/ApJ/946/L35/finalPhysical properties of the final candidates (Tables 3 and 4)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSetSet (1)src.samplecharID1Identifiermeta.id;meta.maincharLSDisplay data from the literature sample (link to Table 6)meta.ref.urlintnullableID2Abbreviated identifiermeta.idcharn_ID2Note on Z6p (2)meta.notecharRAJ2000Right ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainUVmag[26/29] UV band magnitudemagphot.mag;em.UVfloatzphot[7.34/13.85] Photometric redshiftsrc.redshift.photfloate_zphot[0.07/1.56] Lower uncertainty on zphot (3)stat.error;stat.min;src.redshift.photfloatE_zphot[0.05/3.65] Upper uncertainty on zphot (3)stat.error;stat.max;src.redshift.photfloatP(z)[0.81/1] Probability distribution at z>6.5stat.probability;src.redshift.photfloatmu[1.54/15.3]? Median magnification of various lens models (4)stat.median;phot.mag;arith.ratiofloatnullableNotesNotesmeta.noteRefReference (5)meta.ref;pos.framecharz[7.58/13.62] Redshift (6)src.redshiftfloatnullablee_z[0.4/1.4]? Lower uncertainty on zstat.error;stat.min;src.redshiftfloatnullableE_z[0.4/1.4]? Upper uncertainty on zstat.error;stat.max;src.redshiftfloatnullableUVMag[-20.51/-17.22] Absolute UV band magnitudemagphys.magAbs;em.UVfloatnullablee_UVMag[0.05/0.5] Lower uncertainty on UVMagmagstat.error;stat.min;phys.magAbsfloatnullableE_UVMag[0.05/0.3] Upper uncertainty on UVMagmagstat.error;stat.max;phys.magAbsfloatnullablebeta[-2.3/-1.4] Power-law UV slope, {beta}_{lambda}_stat.valuefloatnullablee_beta[0/0.3] Lower uncertainty on betastat.error;stat.min;stat.valuefloatnullableE_beta[0.02/0.42] Upper uncertainty on betastat.error;stat.max;stat.valuefloatnullablelogMs[7.7/9.1] Log of stellar masssolMassphys.massfloatnullablee_logMs[0.07/1.1] Lower uncertainty on logMssolMassstat.error;stat.min;phys.massfloatnullableE_logMs[0.09/1.1] Upper uncertainty on logMssolMassstat.error;stat.max;phys.massfloatnullableSFR[0.27/5.8] Star formation ratesolMass/yrphys.SFRfloatnullablee_SFR[0.07/1.7] Lower uncertainty on SFRsolMass/yrstat.error;stat.min;phys.SFRfloatnullableE_SFR[0.1/4.31] Upper uncertainty on SFRsolMass/yrstat.error;stat.max;phys.SFRfloatnullablelogts[-1.94/-0.74] log of mass-weighted ageGyrtime.agefloatnullablee_logts[0.27/1] Lower uncertainty on logtsGyrstat.error;stat.min;time.agefloatnullableE_logts[0.2/0.9] Upper uncertainty on logtsGyrstat.error;stat.max;time.agefloatnullablelogZs[-1.17/-0.09] log of mass-weighted metallicitylog(Sun)phys.abund.Zfloatnullablee_logZs[0.05/1.3] Lower uncertainty on logZslog(Sun)stat.error;stat.min;phys.abund.ZfloatnullableE_logZs[0.07/1] Upper uncertainty on logZslog(Sun)stat.error;stat.max;phys.abund.ZfloatnullableAvJ/ApJ/946/L35/table6List of high-z candidates identified in the literatureRefReference (1)meta.refcharCommCommentmeta.noterecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameIdentifier in the literaturemeta.id;meta.maincharf_Name[a] a: listed as a potential candidate in their studymeta.code;meta.idcharRAJ2000[110.6/110.92] Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000[-73.51/-73.4] Declination (J2000)degpos.eq.dec;meta.mainzlit[0.05/20.4]? Redshift in the literaturesrc.redshiftfloatnullablez[0.05/16.58] Redshiftsrc.redshiftfloatID1Identifier as in Table 3meta.idcharprimaryFSDisplay data from the final sample (link to Tables 3+4)meta.ref.urlintnullablee_z[0.03/11.24] Lower uncertainty on zstat.error;stat.min;src.redshiftfloatE_z[0.04/10.8] Upper uncertainty on zstat.error;stat.max;src.redshiftfloatP(z)[0/1] Probability distribution at z>6.5stat.probability;src.redshiftfloatSimbadNameSimbad column added by the CDSmeta.idcharnullable