J/MNRAS/496/695ivo://CDS.VizieR/J/MNRAS/496/695CDSCarnall A.C.Walker S.McLure R.J.Dunlop J.S.McLeod D.J.Cullen F.,Wild V.Amorin R.Bolzonella M.Castellano M.Cimatti A.Cucciati O.,Fontana A.Gargiulo A.Garilli B.Jarvis M.J.Pentericci L.,Pozzetti L.Zamorani G.Calabro A.Hathi N.P.Koekemoer A.M.2024-07-17T07:41:09Z2023-09-18T15:19:26ZCDS support team

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

cds-question@unistra.frgalaxiesredshiftedstar-forming-regionsinfrared-astronomyWe present a sample of 151 massive (M_*_>10^10^M_{sun}_) quiescent galaxies at 2<z<5, based on a sophisticated Bayesian spectral energy distribution fitting analysis of the CANDELS UDS and GOODS-South fields. Our sample includes a robust sub-sample of 61 objects for which we confidently exclude low-redshift and star-forming solutions. We identify 10 robust objects at z>3, of which 2 are at z>4. We report formation redshifts, demonstrating that the oldest objects formed at z>6; however, individual ages from our photometric data have significant uncertainties, typically ~0.5Gyr. We demonstrate that the UVJ colours of the quiescent population evolve with redshift at z>3, becoming bluer and more similar to post-starburst galaxies at lower redshift. Based upon this, we construct a model for the time evolution of quiescent galaxy UVJ colours, concluding that the oldest objects are consistent with forming the bulk of their stellar mass at z~6-7 and quenching at z~5. We report spectroscopic redshifts for two of our objects at z=3.440 and 3.396, which exhibit extremely weak Ly{alpha} emission in ultra-deep VANDELS spectra. We calculate star formation rates based on these line fluxes, finding that these galaxies are consistent with our quiescent selection criteria, provided their Ly{alpha} escape fractions are >3 and >10 per cent, respectively. We finally report that our highest redshift robust object exhibits a continuum break at {lambda}~7000{AA} in a spectrum from VUDS, consistent with our photometric redshift of z_phot_=4.72^+0.06^_-0.04_. If confirmed as quiescent, this object would be the highest redshift known quiescent galaxy. To obtain stronger constraints on the times of the earliest quenching events, high-SNR spectroscopy must be extended to z>~3 quiescent objects.2020MNRAS.496..695Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/496/695CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/206/10 : CANDELS multiwavelength catalog (Galametz+, 2013)J/ApJS/207/24 : GOODS-S CANDELS multiwavelength catalog (Guo+, 2013)J/A+A/570/A11 : The Hawk-I UDS and GOODS Survey (HUGS) (Fontana+, 2014)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/496/695https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/496/695http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/496/695https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/496/695https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/496/695http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/496/695GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/496/695/table2 (Coordinates, magnitudes, and BAGPIPES physical parameters for our parent z>2 massive quiescent galaxy sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/496/695/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/496/695/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/496/695/table2?GETtext/xml+votable180.050000true53.12530111-27.934856110.0055555555555555566/17679 17690 359357.952274030004205e-20 1.0188844282367877e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/496/695?format=asciiInfrareddefaultJ/MNRAS/496/695/table2Coordinates, magnitudes, and BAGPIPES physical parameters for our parent z>2 massive quiescent galaxy samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource identifiermeta.id;meta.maincharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainF160WmagF160W-band magnitudemagphot.mag;em.IR.HfloatKsmagKs-band magnitudemagphot.mag;em.IR.Kfloatz2.52.5 percentile of the redshiftsrc.redshift;pos.heliocentricfloatz1616 percentile of the redshiftsrc.redshift;pos.heliocentricfloatz5050 percentile of the redshiftsrc.redshift;pos.heliocentricfloatz8484 percentile of the redshiftsrc.redshift;pos.heliocentricfloatz97.597.5 percentile of the redshiftsrc.redshift;pos.heliocentricfloatt1616 percentile of the formation timeGyrtime.agefloatt5050 percentile of the formation timeGyrtime.agefloatt8484 percentile of the formation timeGyrtime.agefloatSimbadNameSimbad column added by the CDSmeta.idcharnullablelogMass16Logarithm of the 16 percentile of the stellar masslog(solMass)phys.massfloatlogMass50Logarithm of the 50 percentile of the stellar masslog(solMass)phys.massfloatlogMass84Logarithm of the 84 percentile of the stellar masslog(solMass)phys.massfloatlogSFR16Logarithm of the 16 percentile of the specific star formation ratelog(solMass.yr**-1)phys.SFRfloatlogSFR50Logarithm of the 50 percentile of the specific star formation ratelog(solMass.yr**-1)phys.SFRfloatlogSFR84Logarithm of the 84 percentile of the specific star formation ratelog(solMass.yr**-1)phys.SFRfloatAv1616 percentile of the dust reddeningmagphys.absorptionfloatAv5050 percentile of the dust reddeningmagphys.absorptionfloatAv8484 percentile of the dust reddeningmagphys.absorptionfloatrobust[True /False] Indicates if the source belongs to the robust sub-sample (1)meta.codechar