J/A+A/678/A28ivo://CDS.VizieR/J/A+A/678/A28doi:10.26093/cds/vizier.36780028CDSBerta S.Stanley F.Ismail D.Cox P.Neri R.Yang C.Young A.J.,Jin S.Dannerbauer H.Bakx T.J.L.C.Beelen A.Weiss A.Nanni A.,Omont A.Van Der Werf P.Krips M.Baker A.J.Bendo G.Borsato E.,Buat V.Butler K.M.Chartab N.Cooray A.Dye S.Eales S.Gavazzi R.,Hughes D.Ivison R.J.Jones B.M.Lehnert M.Marchetti L.Messias H.,Negrello M.Perez-fournon I.Riechers D.A.Serjeant S.Urquhart S.,Vlahakis C.2024-11-06T20:06:11Z2024-03-04T15:22:18ZCDS support team

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

cds-question@unistra.frmillimeter-astronomysubmillimeter-astronomygalaxiesinfrared-sourcesredshiftedphotometryThe z-GAL survey observed 137 bright Herschel-selected targets with the IRAM Northern Extended Millimeter Array, with the aim to measure their redshift and study their properties. Several of them have been resolved into multiple sources. Consequently, robust spectroscopic redshifts have been measured for 165 individual galaxies in the range 0.8<z<6.5. In this paper we analyse the millimetre spectra of the z-GAL sources, using both their continuum and line emission to derive their physical properties. At least two spectral lines are detected for each source, including transitions of ^12^CO, [CI], and H_2_O. The observed ^12^CO line ratios and spectral line energy distributions of individual sources resemble those of local starbursts. In seven sources the para-H_2_O (2_11_-2_02_) transition is detected and follows the IR versus H_2_O luminosity relation of sub-millimetre galaxies. The molecular gas mass of the z-GAL sources is derived from their ^12^CO, [CI], and sub-millimetre dust continuum emission. The three tracers lead to consistent results, with the dust continuum showing the largest scatter when compared to ^12^CO. The gas-to-dust mass ratio of these sources was computed by combining the information derived from ^12^CO and the dust continuum and has a median value of 107, similar to star-forming galaxies of near-solar metallicity. The same combined analysis leads to depletion timescales in the range between 0.1 and 1.0Gyr, which place the z-GAL sources between the 'main sequence' of star formation and the locus of starbursts. Finally, we derived a first estimate of stellar masses - modulo possible gravitational magnification - by inverting known gas scaling relations: the z-GAL sample is confirmed to be mostly composed by starbursts, whereas ~25% of its members lie on the main sequence of star-forming galaxies (within +/-0.5dex).2023A&A...678A..28Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/678/A28CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/678/A26 : z-GAL. I. Overview (Cox+, 2023)wwwJ/A+A/678/A27 : z-GAL. II. Dust continuum properties (Ismail+, 2023)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/678/A28https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/678/A28http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/678/A28https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/678/A28https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/678/A28http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/678/A28GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/678/A28/tableb1 (Values of L'_12CO_ of all detected transitions of the z-GAL sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/678/A28/tableb1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/678/A28/tableb1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/678/A28/tableb1?GETtext/xml+votable180.050000true353.6707083-6.87227780.0055555555555555566/4102 8202 10257 10270-10271 10286 10289 10292 10300 10350 10372 10385-10386 10389 10392 10404-10405 10407 10418 10422 10440 10442 10445 10456 10458 10466 10758 17278 17334 17337 17340 17343 17353 17361 17375 17391 17402 17405 17727 17814 17827 17834 17856 17982 17996-17997 18003 18005 18012 18014 18017 18023 18034 18053 18065 18068 18070-18071 18075 18101 18103 18106 18111 18161 18170 18172 18178 18304 18703 18712-18713 18717-18719 18755 18767 18786-18788 18804 19460 19467 19478 21837 21839 21841 21844 21853 21875 21878-21879 25588 25593 25596-25597 25918 25937-25938 25942 25944-25945 25948 25957 25960-25961 25972-25973 25977 26003 26049 26253 26255 26273 26276 26279 26283 26285 26288 26290 26961 26963 26967 27279 27301 27304 28117 28125https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/678/A28?format=asciiInfraredMillimeterdefaultJ/A+A/678/A28/tableb1Values of L'_12CO_ of all detected transitions of the z-GAL sourcesSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintmuL(12CO(2-1))? Line luninosity of ^12^CO(2-1)1e+10K.km.s**-1.pc**-2phys.luminosityfloatnullablee_muL(12CO(2-1))? Line luninosity of ^12^CO(2-1) error1e+10K.km.s**-1.pc**-2stat.errorfloatnullableSourceSource namemeta.id;meta.maincharz? Redshiftsrc.redshiftfloatnullablemuL(12CO(3-2))? Line luninosity of ^12^CO(3-2)1e+10K.km.s**-1.pc**-2phys.luminosityfloatnullablee_muL(12CO(3-2))? Line luninosity of ^12^CO(3-2) error1e+10K.km.s**-1.pc**-2stat.errorfloatnullablemuL(12CO(4-3))? Line luninosity of ^12^CO(4-3)1e+10K.km.s**-1.pc**-2phys.luminosityfloatnullablee_muL(12CO(4-3))? Line luninosity of ^12^CO(4-3) error1e+10K.km.s**-1.pc**-2stat.errorfloatnullablemuL(12CO(5-4))? Line luninosity of ^12^CO(5-4)1e+10K.km.s**-1.pc**-2phys.luminosityfloatnullablee_muL(12CO(5-4))? Line luninosity of ^12^CO(5-4) error1e+10K.km.s**-1.pc**-2stat.errorfloatnullablemuL(12CO(6-5))? Line luninosity of ^12^CO(6-5)1e+10K.km.s**-1.pc**-2phys.luminosityfloatnullablee_muL(12CO(6-5))? Line luninosity of ^12^CO(6-5) error1e+10K.km.s**-1.pc**-2stat.errorfloatnullablemuL(12CO(7-6))? Line luninosity of ^12^CO(7-6)1e+10K.km.s**-1.pc**-2phys.luminosityfloatnullablee_muL(12CO(7-6))? Line luninosity of ^12^CO(7-6) error1e+10K.km.s**-1.pc**-2stat.errorfloatnullablemuL(12CO(8-7))? Line luninosity of ^12^CO(8-7)1e+10K.km.s**-1.pc**-2phys.luminosityfloatnullablee_muL(12CO(8-7))? Line luninosity of ^12^CO(8-7) error1e+10K.km.s**-1.pc**-2stat.errorfloatnullable_RAPositions from Paper I (right ascension part)degpos.eq.ra;meta.main_DEPositions from Paper I (declination part)degpos.eq.dec;meta.mainJ/A+A/678/A28/tableb2*Derived physical properties of the z-GAL sourcesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSourceSource namemeta.id;meta.maincharTransLowest CO transitionphys.atmol.transProb;phys.atmol.transition;stat.mincharmuL(12CO(1-0))? Line luninosity of ^12^CO(1-0)1e+10K.km**-1.s**-1.pc**-2phys.luminosityfloatnullablee_muL(12CO(1-0))? Line luninosity of ^12^CO(1-0) error1e+10K.km**-1.s**-1.pc**-2stat.errorfloatnullablemuMmol12CO? Molecular gas mass from ^12^CO1e+11solMassphys.massfloatnullablee_muMmol12CO? Molecular gas mass from ^12^CO error1e+11solMassstat.errorfloatnullablemuMmol850um? Molecular gas mass from 850um continuum1e+11solMassphys.massfloatnullablee_muMmol850um? Molecular gas mass from 850um continuum error1e+11solMassstat.errorfloatnullabledeltaGDR? Gas-to-dust mass ratio from ^12^CO conversion factorphys.mass;arith.ratiofloatnullablee_deltaGDR? Gas-to-dust mass ratio from ^12^CO conversion factor errorstat.errorfloatnullablemuLIR? IR luminosity1e+11solLumphys.luminosity;em.IRfloatnullablee_muLIR? IR luminosity error1e+11solLumstat.errorfloatnullablemuSFR? Star formation ratesolMass/yrphys.luminosityfloatnullablee_muSFR? Star formation rate errorsolMass/yrstat.errorfloatnullabletaudep? Depletion timescale from ^12^CO conversion factor1e+09yrtime.scalefloatnullablee_taudep? Depletion timescale from ^12^CO conversion factor error1e+09yrstat.errorfloatnullablemuEM*? {mu}^E^M* value (1)1e+11solMassstat.fit.paramfloatnullablee_muEM*? {mu}^E^M* value error1e+11solMassstat.errorfloatnullableE? Extra term , E=C/(C(0.84+0,026t)-Dstat.fit.paramfloatnullableDlog(MS)? Distance of each z-GAL galaxy from the MS, log(muSFR/SFR(MS))stat.fit.paramfloatnullablee_Dlog(MS)? Distance of each z-GAL galaxy from the MS errorstat.errorfloatnullable