J/A+A/678/A26ivo://CDS.VizieR/J/A+A/678/A26doi:10.26093/cds/vizier.36780026CDSCox P.Neri R.Berta S.Ismail D.Stanley F.Young A.Jin S.,Bakx T.Beelen A.Dannerbauer H.Krips M.Lehnert M.Omont A.,Riechers D.A.Baker A.J.Bendo G.Borsato E.Buat V.Butler K.,Chartab N.Cooray A.Dye S.Eales S.Gavazzi R.Hughes D.Ivison R.,Jones B.M.Marchetti L.Messias H.Nanni A.Negrello M.,Perez-fournon I.Serjeant S.Urquhart S.Vlahakis C.Weiss A.,Van Der Werf P.Yang C.2024-11-28T20:05:32Z2024-03-04T15:16:41ZCDS support team

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

cds-question@unistra.frmillimeter-astronomysubmillimeter-astronomygalaxiesinfrared-sourcesredshiftedphotometryUsing the IRAM NOrthern Extended Millimetre Array (NOEMA), we conducted a Large Programme (z-GAL) to measure redshifts for 126 bright galaxies detected in the Herschel Astrophysical Large Area Survey (H-ATLAS), the HerMES Large Mode Survey (HeLMS), and the Herschel Stripe 82 (HerS) Survey. We report reliable spectroscopic redshifts for a total of 124 of the Herschel-selected galaxies. The redshifts are estimated from scans of the 3 and 2-mm bands (and, for one source, the 1-mm band), covering up to 31GHz in each band, and are based on the detection of at least two emission lines. Together with the Pilot Programme, where 11 sources had their spectroscopic redshifts measured, our survey has derived precise redshifts for 135 bright Herschel-selected galaxies, making it the largest sample of high-z galaxies with robust redshifts to date. Most emission lines detected are from ^12^CO (mainly from J=2-1 to 5-4), with some sources seen in [CI] and H_2_O emission lines. The spectroscopic redshifts are in the range 0.8<z<6.55 with a median value of z=2.56+/-0.10, centred on the peak epoch of galaxy formation. The linewidths of the sources are large, with a mean value for the full width at half maximum {DELTA}V of 590+/-25km/s and with 35% of the sources having widths of 700km/s<{DELTA}V<1800km/s. Most of the sources are unresolved or barely resolved on scales of ~2 to 3" (or linear sizes of ~15 - 25kpc, unlensed). Some fields reveal double or multiple sources in line emission and the underlying dust continuum and, in some cases, sources at different redshifts. Taking these sources into account, there are, in total, 165 individual sources with robust spectroscopic redshifts, including lensed galaxies, binary systems, and over-densities. This paper presents an overview of the z-GAL survey and provides the observed properties of the emission lines, the derived spectroscopic redshifts, and a catalogue of the entire sample. The catalogue includes, for each source, the combined continuum and emission lines' maps together with the spectra for each of the detected emission lines. The data presented here will serve as a foundation for the other z-GAL papers in this series reporting on the dust emission, the molecular and atomic gas properties, and a detailed analysis of the nature of the sources. Comparisons are made with other spectroscopic surveys of high-z galaxies and future prospects, including dedicated follow-up observations based on these redshift measurements, are outlined.2023A&A...678A..26Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/678/A26CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/473/1751 : Herschel Bright Sources (HerBS) (Bakx+, 2018)J/A+A/635/A7 : NOEMA redshift of bright Herschel galaxies (Neri+, 2020)J/A+A/678/A27 : z-GAL dust continuum properties (Ismail+, 2023)J/A+A/678/A28 : z-GAL. III. Physical properties (Berta+, 2023)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/678/A26https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/678/A26http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/678/A26https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/678/A26https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/678/A26http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/678/A26GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/678/A26/tablea1 (z-GAL Sample: HeLMS and HerS sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/678/A26/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/678/A26/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/678/A26/tablea1?GETtext/xml+votable180.050000true353.670833-6.8722220.005555555555555556Cone search capability for table J/A+A/678/A26/tablea2 (z-GAL Sample: HerBS sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/678/A26/tablea2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/678/A26/tablea2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/678/A26/tablea2?GETtext/xml+votable180.050000true221.5358332.3241670.005555555555555556Cone search capability for table J/A+A/678/A26/tablea3 (HerBS sources from the Pilot Programme (Neri et al., 2020A&A...635A...7N, Cat. J/A+A/635/A7))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/678/A26/tablea3?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/678/A26/tablea3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/678/A26/tablea3?GETtext/xml+votable180.050000true203.557526.0827780.005555555555555556Cone search capability for table J/A+A/678/A26/tablea4 (Northern galactic plane and equatorial sources, without spectroscopic redshift measurements, not selected in (or dropped from) z-GAL from the HerBS, HeLMS, and HerS catalogues)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/678/A26/tablea4?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/678/A26/tablea4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/678/A26/tablea4?GETtext/xml+votable180.050000true212.5195832.0516670.005555555555555556Cone search capability for table J/A+A/678/A26/tablea5 (Northern galactic plane and equatorial sources with previously available spectroscopic redshift measurements from the HerBS, HeLMS, and HerS catalogues)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/678/A26/tablea5?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/678/A26/tablea5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/678/A26/tablea5?GETtext/xml+votable180.050000true206.12291730.5094440.005555555555555556Cone search capability for table J/A+A/678/A26/tablea6 (Spectroscopic redshifts and emission line properties: HeLMS and HerS sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/678/A26/tablea6?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/678/A26/tablea6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/678/A26/tablea6?GETtext/xml+votable180.050000true353.6707083-6.87227780.005555555555555556Cone search capability for table J/A+A/678/A26/tablea78 (Spectroscopic redshifts and emission line properties: HerBS sources (tables A7 + A8))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/678/A26/tablea78?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/678/A26/tablea78?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/678/A26/tablea78?GETtext/xml+votable180.050000true221.53783332.32205560.005555555555555556Cone search capability for table J/A+A/678/A26/tablea9 (Spectroscopic redshifts and emission line properties: HerBS sources from Neri et al. (2020A&A...635A...7N, Cat. J/A+A/635/A7))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/678/A26/tablea9?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/678/A26/tablea9?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/678/A26/tablea9?GETtext/xml+votable180.050000true203.557791726.08263890.0055555555555555566/4102 4106 8202 10257 10260 10262 10270-10271 10286 10288-10289 10292 10300 10303 10342 10347 10350 10372 10385-10386 10388-10389 10392 10397 10400 10404-10405 10407 10418 10422 10432-10434 10440 10442 10445-10446 10456 10458 10465-10466 10758 17278 17334 17337 17340 17343 17353 17361 17375 17386 17391 17402 17405 17727 17814-17815 17827 17834 17856 17982 17996-17997 18003 18005 18009 18012 18014 18017 18020 18023 18026 18034 18053 18060 18065 18068 18070-18071 18075 18101 18103 18106-18107 18111 18114 18118 18142 18161 18164 18170 18172 18178 18304 18703 18708 18712-18713 18717-18719 18755 18760 18767 18786-18788 18804 19460 19467 19476 19478 21837 21839 21841 21844 21853 21861 21875 21878-21880 25588 25591 25593 25596-25597 25918 25937-25938 25941-25942 25944-25945 25948 25957 25960-25962 25964 25972-25973 25977 26003 26005 26049 26053 26056 26253 26255 26273 26276 26279 26283 26285 26288 26290 26956-26957 26961 26963 26967 26969 26980 26992 27279 27297 27301 27303-27304 27307 27321 28115 28117 28119 28125-28126 281482.3390025583187276e-22 7.945784137810954e-22https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/678/A26?format=asciiInfraredMillimeterdefaultJ/A+A/678/A26/tablea1z-GAL Sample: HeLMS and HerS sourcesSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintType[HeLMS HerBS] Typemeta.codecharNameSource name Herschel (1)meta.id;meta.maincharONameOther namemeta.idcharRAJ2000Herschel Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Herschel Declination (J2000)pos.eq.dec;meta.mainzphotaPhotometric redshift re-evaluated using the method described by Ivison et al. (2016ApJ...832...78I)src.redshift.photfloatzphotbPhotometric redshift re-evaluated using the method described by Pearson et al. (2013MNRAS.435.2753P)src.redshift.photfloatS250umFlux density Herschel at 250ummJyphot.flux.density;em.mm.750-1500GHzfloate_S250umFlux density Herschel at 250um errormJystat.errorfloatS350umFlux density Herschel at 350ummJyphot.flux.density;em.mm.750-1500GHzfloate_S350umFlux density Herschel at 350um errormJystat.errorfloatS500umFlux density Herschel at 500ummJyphot.flux.density;em.mm.400-750GHzfloate_S500umFlux density Herschel at 500um errormJystat.errorfloatS850um? Flux density SCUBA-2 at 850um (2)mJyphot.flux.density;em.mm.200-400GHzfloatnullablee_S850um? Flux density SCUBA-2 at 850um error (2)mJystat.errorfloatnullableJ/A+A/678/A26/tablea2z-GAL Sample: HerBS sourcesSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintType[HeLMS HerBS] Typemeta.codecharNameSource name Herschel (1)meta.id;meta.maincharONameOther namemeta.idcharRAJ2000Herschel Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Herschel Declination (J2000)pos.eq.dec;meta.mainzphotaPhotometric redshift re-evaluated using the method described by Ivison et al. (2016ApJ...832...78I)src.redshift.photfloatzphotbPhotometric redshift re-evaluated using the method described by Pearson et al. (2013MNRAS.435.2753P)src.redshift.photfloatS250umFlux density Herschel at 250ummJyphot.flux.density;em.mm.750-1500GHzfloate_S250umFlux density Herschel at 250um errormJystat.errorfloatS350umFlux density Herschel at 350ummJyphot.flux.density;em.mm.750-1500GHzfloate_S350umFlux density Herschel at 350um errormJystat.errorfloatS500umFlux density Herschel at 500ummJyphot.flux.density;em.mm.400-750GHzfloate_S500umFlux density Herschel at 500um errormJystat.errorfloatS850um? Flux density SCUBA-2 at 850um (2)mJyphot.flux.density;em.mm.200-400GHzfloatnullablee_S850um? Flux density SCUBA-2 at 850um error (2)mJystat.errorfloatnullableJ/A+A/678/A26/tablea3HerBS sources from the Pilot Programme (Neri et al., 2020A&A...635A...7N, Cat. J/A+A/635/A7)SimbadNameSimbad column added by the CDSmeta.idcharnullablee_S250umFlux density Herschel at 250um errormJystat.errorfloatS350umFlux density Herschel at 350ummJyphot.flux.density;em.mm.750-1500GHzfloate_S350umFlux density Herschel at 350um errormJystat.errorfloatS500umFlux density Herschel at 500ummJyphot.flux.density;em.mm.400-750GHzfloate_S500umFlux density Herschel at 500um errormJystat.errorfloatS850um? Flux density SCUBA-2 at 850um (2)mJyphot.flux.density;em.mm.200-400GHzfloatnullablee_S850um? Flux density SCUBA-2 at 850um error (2)mJystat.errorfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintType[HeLMS HerBS] Typemeta.codecharNameSource name Herschel (1)meta.id;meta.maincharONameOther namemeta.idcharRAJ2000Herschel Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Herschel Declination (J2000)pos.eq.dec;meta.mainzphotaPhotometric redshift re-evaluated using the method described by Ivison et al. (2016ApJ...832...78I)src.redshift.photfloatzphotbPhotometric redshift re-evaluated using the method described by Pearson et al. (2013MNRAS.435.2753P)src.redshift.photfloatS250umFlux density Herschel at 250ummJyphot.flux.density;em.mm.750-1500GHzfloatJ/A+A/678/A26/tablea4Northern galactic plane and equatorial sources, without spectroscopic redshift measurements, not selected in (or dropped from) z-GAL from the HerBS, HeLMS, and HerS cataloguesSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTypeType (HeLMS+ pour HeLMS and HerS sources)meta.codecharNameSource name Herschel (1)meta.id;meta.maincharONameOther namemeta.idcharRAJ2000Herschel Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Herschel Declination (J2000)pos.eq.dec;meta.mainS250umFlux density Herschel at 250ummJyphot.flux.density;em.mm.750-1500GHzfloate_S250umFlux density Herschel at 250um errormJystat.errorfloatS350umFlux density Herschel at 350ummJyphot.flux.density;em.mm.750-1500GHzfloate_S350umFlux density Herschel at 350um errormJystat.errorfloatS500umFlux density Herschel at 500ummJyphot.flux.density;em.mm.400-750GHzfloate_S500umFlux density Herschel at 500um errormJystat.errorfloatS850um? Flux density SCUBA-2 at 850um (2)mJyphot.flux.density;em.mm.200-400GHzfloatnullablee_S850um? Flux density SCUBA-2 at 850um error (2)mJystat.errorfloatnullablen_S850um[*] * for classified as non-detectionsmeta.notecharNoteNotemeta.notecharJ/A+A/678/A26/tablea5Northern galactic plane and equatorial sources with previously available spectroscopic redshift measurements from the HerBS, HeLMS, and HerS cataloguesSimbadNameSimbad column added by the CDSmeta.idcharnullableONameOther Namemeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTypeType (HeLMS+ pour HeLMS and HerS sources)meta.codecharNameSource name Herschel (1)meta.id;meta.maincharRAJ2000Herschel Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Herschel Declination (J2000)pos.eq.dec;meta.mainS250umFlux density Herschel at 250ummJyphot.flux.density;em.mm.750-1500GHzfloate_S250umFlux density Herschel at 250um errormJystat.errorfloatS350umFlux density Herschel at 350ummJyphot.flux.density;em.mm.750-1500GHzfloate_S350umFlux density Herschel at 350um errormJystat.errorfloatS500umFlux density Herschel at 500ummJyphot.flux.density;em.mm.400-750GHzfloate_S500umFlux density Herschel at 500um errormJystat.errorfloatS850um? Flux density SCUBA-2 at 850um (2)mJyphot.flux.density;em.mm.200-400GHzfloatnullablee_S850um? Flux density SCUBA-2 at 850um error (2)mJystat.errorfloatnullablen_S850um[*] * for classified as non-detectionsmeta.notecharzspSpectroscopic redshift (3)src.redshiftfloatn_zsp[*a] Note on zsp (4)meta.notecharJ/A+A/678/A26/tablea6Spectroscopic redshifts and emission line properties: HeLMS and HerS sourcesDEJ2000Observed Declination (J2000)pos.eq.dec;meta.mainzspSpectroscopic redshiftsrc.redshiftfloate_zspSpectroscopic redshift error derived from the simultaneous Gaussian fits to the line profilesstat.errorfloatn_zsp[*] Note on zsp (1)meta.notecharDeltaVMean linewidths (FWHM) weighted by the peak intensities of the detected CO emission lineskm/sspect.line.widthinte_DeltaVDeltaV errorkm/sstat.errorintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTypeType (HeLMS, HerBS or HerS)meta.codecharSourceSource namemeta.id;meta.maincharRAJ2000Observed Right ascension (J2000)pos.eq.ra;meta.mainn_DeltaV[*] * for emission lines fitted with double Gaussiansmeta.notecharLine1Emission line 1meta.id;spect.linecharLine1FluxFlux in emission line 1Jy.km/sphot.fluxfloate_Line1FluxFlux in emission line 1 errorJy.km/sstat.errorfloatn_Line1Flux[*] Note on Line1Flux (1)meta.notecharLine2Emission line 2meta.id;spect.linecharl_Line2FluxLimit flag on Line2Fluxmeta.code.errorcharLine2Flux? Flux in emission line 2Jy.km/sphot.fluxfloatnullablee_Line2Flux? Flux in emission line 2 errorJy.km/sstat.errorfloatnullableLine3Emission line 3meta.id;spect.linecharLine3Flux? Flux in emission line 3Jy.km/sphot.fluxfloatnullablee_Line3Flux? Flux in emission line 3 errorJy.km/sstat.errorfloatnullableLine4Emission line 4meta.id;spect.linecharLine4Flux? Flux in emission line 4Jy.km/sphot.fluxfloatnullablee_Line4Flux? Flux in emission line 4 errorJy.km/sstat.errorfloatnullableLine5Emission line 5meta.id;spect.linecharLine5Flux? Flux in emission line 5Jy.km/sphot.fluxfloatnullablee_Line5Flux? Flux in emission line 5 errorJy.km/sstat.errorfloatnullableJ/A+A/678/A26/tablea78Spectroscopic redshifts and emission line properties: HerBS sources (tables A7 + A8)Line2Flux? Flux in emission line 2Jy.km/sphot.fluxfloatnullablee_Line2Flux? Flux in emission line 2 errorJy.km/sstat.errorfloatnullableLine3Emission line 3meta.id;spect.linecharLine3Flux? Flux in emission line 3Jy.km/sphot.fluxfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTypeType (HeLMS, HerBS or HerS)meta.codecharSourceSource namemeta.id;meta.maincharRAJ2000Observed Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Observed Declination (J2000)pos.eq.dec;meta.mainzspSpectroscopic redshiftsrc.redshiftfloate_zspSpectroscopic redshift error derived from the simultaneous Gaussian fits to the line profilesstat.errorfloatn_zsp[*] Note on zsp (1)meta.notecharDeltaVMean linewidths (FWHM) weighted by the peak intensities of the detected CO emission lineskm/sspect.line.widthinte_DeltaVDeltaV errorkm/sstat.errorintn_DeltaV[*] * for emission lines fitted with double Gaussiansmeta.notecharLine1Emission line 1meta.id;spect.linecharLine1FluxFlux in emission line 1Jy.km/sphot.fluxfloate_Line1FluxFlux in emission line 1 errorJy.km/sstat.errorfloatn_Line1Flux[*] Note on Line1Flux (1)meta.notecharLine2Emission line 2meta.id;spect.linecharl_Line2FluxLimit flag on Line2Fluxmeta.code.errorchare_Line3Flux? Flux in emission line 3 errorJy.km/sstat.errorfloatnullableLine4Emission line 4meta.id;spect.linecharLine4Flux? Flux in emission line 4Jy.km/sphot.fluxfloatnullablee_Line4Flux? Flux in emission line 4 errorJy.km/sstat.errorfloatnullableLine5Emission line 5meta.id;spect.linecharLine5Flux? Flux in emission line 5Jy.km/sphot.fluxfloatnullablee_Line5Flux? Flux in emission line 5 errorJy.km/sstat.errorfloatnullableJ/A+A/678/A26/tablea9Spectroscopic redshifts and emission line properties: HerBS sources from Neri et al. (2020A&A...635A...7N, Cat. J/A+A/635/A7)Line5Emission line 5meta.id;spect.linecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTypeType (HeLMS, HerBS or HerS)meta.codecharSourceSource namemeta.id;meta.maincharRAJ2000Observed Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Observed Declination (J2000)pos.eq.dec;meta.mainzspSpectroscopic redshiftsrc.redshiftfloate_zspSpectroscopic redshift error derived from the simultaneous Gaussian fits to the line profilesstat.errorfloatn_zsp[*] Note on zsp (1)meta.notecharDeltaVMean linewidths (FWHM) weighted by the peak intensities of the detected CO emission lineskm/sspect.line.widthinte_DeltaVDeltaV errorkm/sstat.errorintn_DeltaV[*] * for emission lines fitted with double Gaussiansmeta.notecharLine1Emission line 1meta.id;spect.linecharLine1FluxFlux in emission line 1Jy.km/sphot.fluxfloate_Line1FluxFlux in emission line 1 errorJy.km/sstat.errorfloatn_Line1Flux[*] Note on Line1Flux (1)meta.notecharLine2Emission line 2meta.id;spect.linecharl_Line2FluxLimit flag on Line2Fluxmeta.code.errorcharLine2Flux? Flux in emission line 2Jy.km/sphot.fluxfloatnullablee_Line2Flux? Flux in emission line 2 errorJy.km/sstat.errorfloatnullableLine3Emission line 3meta.id;spect.linecharLine3Flux? Flux in emission line 3Jy.km/sphot.fluxfloatnullablee_Line3Flux? Flux in emission line 3 errorJy.km/sstat.errorfloatnullableLine4Emission line 4meta.id;spect.linecharLine4Flux? Flux in emission line 4Jy.km/sphot.fluxfloatnullablee_Line4Flux? Flux in emission line 4 errorJy.km/sstat.errorfloatnullableLine5Flux? Flux in emission line 5Jy.km/sphot.fluxfloatnullablee_Line5Flux? Flux in emission line 5 errorJy.km/sstat.errorfloatnullable