J/MNRAS/513/3719ivo://CDS.VizieR/J/MNRAS/513/3719doi:10.26093/cds/vizier.75133719CDSHatfield P.W.Jarvis M.J.Adams N.Bowler R.A.A.Haussler B.,Duncan K.J.2024-08-22T20:15:29Z2022-08-03T07:28:16ZCDS support team

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

cds-question@unistra.frsurveysinfrared-photometryphotometryvisible-astronomyredshiftedgalaxiesIn this paper, we present photometric redshifts for 2.7 million galaxies in the XMM-LSS and COSMOS fields, both with rich optical and near-infrared data from VISTA and HyperSuprimeCam. Both template fitting (using galaxy and active galactic nuclei templates within LePhare) and machine learning (using gpz) methods are run on the aperture photometry of sources selected in the Ks-band. The resulting predictions are then combined using a Hierarchical Bayesian model, to produce consensus photometric redshift point estimates and probability distribution functions that outperform each method individually. Our point estimates have a root mean square error of ~0.08-0.09, and an outlier fraction of ~3-4 percent when compared to spectroscopic redshifts. We also compare our results to the COSMOS2020 photometric redshifts, which contain fewer sources, but had access to a larger number of bands and greater wavelength coverage, finding that comparable photo-z quality can be achieved (for bright and intermediate luminosity sources where a direct comparison can be made). Our resulting redshifts represent the most accurate set of photometric redshifts (for a catalogue this large) for these deep multisquare degree multiwavelength fields to date.2022MNRAS.513.3719Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/513/3719CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-tohttp://www-astro.physics.ox.ac.uk/~video/public/Home.html : VIDEO Home Pagehttps://ultravista.org/ : UltraVISTA Home Pagehttps://hsc-release.mtk.nao.ac.jp/doc/ : HSC data Home Pagehttps://www.ap.smu.ca/~sawicki/sawicki/CLAUDS.html : CLAUDS Home Pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/513/3719https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/513/3719http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/513/3719https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/513/3719https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/513/3719http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/513/3719GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/513/3719/cosphotz (Data in the COSMOS field)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/513/3719/cosphotz?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/513/3719/cosphotz?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/513/3719/cosphotz?GETtext/xml+votable180.050000true149.94777899591691.61348719520356680.005555555555555556Cone search capability for table J/MNRAS/513/3719/xmmphotz (Data in the XMM-LSS field)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/513/3719/xmmphotz?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/513/3719/xmmphotz?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/513/3719/xmmphotz?GETtext/xml+votable180.050000true33.84773504610634-4.2413515762667770.0055555555555555565/4422 6814 6/17677 17679 17681-17683 17686 17692-17694 17712-17713 27245 27247 27344https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/513/3719?format=asciiOpticalInfrareddefaultJ/MNRAS/513/3719/cosphotzData in the COSMOS fielde_FHSC-g? Uncertainty on g-band flux (from HSC data) (err_HSC-G)mW.m**-2.Hz**-1stat.errordoublenullableFHSC-r? r-band flux (from HSC data) (flux_HSC-R)mW.m**-2.Hz**-1phot.flux.density;em.opt.Rdoublenullablee_FHSC-r? Uncertainty on r-band flux (from HSC data) (err_HSC-R)mW.m**-2.Hz**-1stat.errordoublenullableFHSC-i? i-band flux (from HSC data) (flux_HSC-I)mW.m**-2.Hz**-1phot.flux.density;em.opt.Idoublenullablee_FHSC-i? Uncertainty on i-band flux (from HSC data) (err_HSC-I)mW.m**-2.Hz**-1stat.errordoublenullableFHSC-z? z-band flux (from HSC data) (flux_HSC-Z)mW.m**-2.Hz**-1phot.flux.density;em.opt.Idoublenullablee_FHSC-z? Uncertainty on z-band flux (from HSC data) (err_HSC-Z)mW.m**-2.Hz**-1stat.errordoublenullableFHSC-y? y-band flux (from HSC data) (flux_HSC-Y)mW.m**-2.Hz**-1phot.flux.density;em.IRdoublenullablee_FHSC-y? Uncertainty on y-band flux (from HSC data) (err_HSC-Y)mW.m**-2.Hz**-1stat.errordoublenullableFVISTA-Y? Y-band flux (from VISTA data) (flux_VISTA_Y)mW.m**-2.Hz**-1phot.flux.density;em.IR.Jdoublenullablee_FVISTA-YUncertainty on Y-band flux (from VISTA data) (err_VISTA_Y)mW.m**-2.Hz**-1stat.errordoubleFVISTA-J? J-band flux (from VISTA data) (flux_VISTA_J)mW.m**-2.Hz**-1phot.flux.density;em.IR.Jdoublenullablee_FVISTA-JUncertainty on J-band flux (from VISTA data) (err_VISTA_J)mW.m**-2.Hz**-1stat.errordoubleFVISTA-H? H-band flux (from VISTA data) (flux_VISTA_H)mW.m**-2.Hz**-1phot.flux.density;em.IR.Hdoublenullablee_FVISTA-HUncertainty on H-band flux (from VISTA data) (err_VISTA_H)mW.m**-2.Hz**-1stat.errordoubleFVISTA-Ks? Ks-band flux (from VISTA data) (flux_VISTA_Ks)mW.m**-2.Hz**-1phot.mag;em.IR.Kdoublenullablee_FVISTA-Ks? Uncertainty on Ks-band flux (from VISTA data) (err_VISTA_Ks)mW.m**-2.Hz**-1stat.errordoublenullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Celestial right ascension (J2000) (RA2000)degpos.eq.ra;meta.mainindexedDEJ2000Celestial declination (J2000) (DEC2000)degpos.eq.dec;meta.mainindexedzphMLbestMachine learning (GPz) based photometric redshift estimate (photo_z_ML_best)src.redshift.photdoublee_zphMLbestUncertainty on zphMLbest (photo_z_ML_err)stat.errordoublezphTempTemplate fitting (LePhare) based photometric redshift estimate (photo_z_TEMPLATE_best)src.redshift.photdoublee_zphTempUncertainty on zphTemp (photo_z_TEMPLATE_err)stat.errordoublezphHBbestHybrid (Hierarchical Bayesian combination) photometric redshift estimate (photo_z_HB_best)src.redshift.photdoublee_zphHBbest? Uncertainty on zphHBbest (photo_z_HB_err)stat.errordoublenullableFlag[0/1]? Flag identifying quality of photo-z (flag) (G1)meta.code.errorintnullableFCFHT-u? u-band flux (from CFHT data) (flux_CFHT-u)mW.m**-2.Hz**-1phot.flux.density;em.opt.Udoublenullablee_FCFHT-u[]? Uncertainty on u-band flux (from CFHT data) (err_CFHT-u)mW.m**-2.Hz**-1stat.errordoublenullableFHSC-g? g-band flux (from HSC data) (flux_HSC-G)mW.m**-2.Hz**-1phot.flux.density;em.opt.BdoublenullableJ/MNRAS/513/3719/xmmphotzData in the XMM-LSS fieldrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Celestial right ascension (J2000) (RA2000)degpos.eq.ra;meta.mainindexedDEJ2000Celestial declination (J2000) (DEC2000)degpos.eq.dec;meta.mainindexedzphMLbestMachine learning (GPz) based photometric redshift estimate (photo_z_ML_b)src.redshift.photdoublee_zphMLbestUncertainty on zphMLbest (photo_z_ML_e)stat.errordoublezphTempTemplate fitting (LePhare) based photometric redshift estimate (photo_z_TEMP)src.redshift.photdoublee_zphTempUncertainty on zphTemp (photo_z_TEMP)stat.errordoublezphHBbestHybrid (Hierarchical Bayesian combination) photometric redshift estimate (photo_z_HB_b)src.redshift.photdoublee_FHSC-r? Uncertainty on r-band flux (from HSC data) (err_HSC-R)mW.m**-2.Hz**-1stat.errordoublenullableFHSC-i? i-band flux (from HSC data) (flux_HSC-I)mW.m**-2.Hz**-1phot.flux.density;em.opt.Idoublenullablee_FHSC-i? Uncertainty on i-band flux (from HSC data) (err_HSC-I)mW.m**-2.Hz**-1stat.errordoublenullableFHSC-z? z-band flux (from HSC data) (flux_HSC-Z)mW.m**-2.Hz**-1phot.flux.density;em.opt.Idoublenullablee_FHSC-z? Uncertainty on z-band flux (from HSC data) (err_HSC-Z)mW.m**-2.Hz**-1stat.errordoublenullableFHSC-y? y-band flux (from HSC data) (flux_HSC-Y)mW.m**-2.Hz**-1phot.flux.density;em.IRdoublenullablee_FHSC-y? Uncertainty on y-band flux (from HSC data) (err_HSC-Y)mW.m**-2.Hz**-1stat.errordoublenullableFVISTA-Y? Y-band flux (from VISTA data) (flux_VISTA_Y)mW.m**-2.Hz**-1phot.flux.density;em.IR.Jdoublenullablee_FVISTA-Y? Uncertainty on Y-band flux (from VISTA data) (err_VISTA_Y)mW.m**-2.Hz**-1stat.errordoublenullableFVISTA-J? J-band flux (from VISTA data) (flux_VISTA_J)mW.m**-2.Hz**-1phot.flux.density;em.IR.Jdoublenullablee_FVISTA-J? Uncertainty on J-band flux (from VISTA data) (err_VISTA_J)mW.m**-2.Hz**-1stat.errordoublenullableFVISTA-H? H-band flux (from VISTA data) (flux_VISTA_H)mW.m**-2.Hz**-1phot.flux.density;em.IR.Hdoublenullablee_FVISTA-H? Uncertainty on H-band flux (from VISTA data) (err_VISTA_H)mW.m**-2.Hz**-1stat.errordoublenullableFVISTA-Ks? Ks-band flux (from VISTA data) (flux_VISTA_K)mW.m**-2.Hz**-1phot.mag;em.IR.Kdoublenullablee_FVISTA-Ks? Uncertainty on Ks-band flux (from VISTA data) (err_VISTA_Ks)mW.m**-2.Hz**-1stat.errordoublenullablee_zphHBbest? Uncertainty on zphHBbest (photo_z_HB_e)stat.errordoublenullableFlag[0/1]? Flag identifying quality of photo-z (flag) (G1)meta.code.errorintnullableFCFHT-u? u-band flux (from CFHT data) (flux_CFHT-u)mW.m**-2.Hz**-1phot.flux.density;em.opt.Ufloatnullablee_FCFHT-u? Uncertainty on u-band flux (from CFHT data) (err_CFHT-u)mW.m**-2.Hz**-1stat.errordoublenullableFHSC-g? g-band flux (from HSC data) (flux_HSC-G)mW.m**-2.Hz**-1phot.flux.density;em.opt.Bdoublenullablee_FHSC-g? Uncertainty on g-band flux (from HSC data) (err_HSC-G)mW.m**-2.Hz**-1stat.errordoublenullableFHSC-r? r-band flux (from HSC data) (flux_HSC-R)mW.m**-2.Hz**-1phot.flux.density;em.opt.Rdoublenullable