J/A+A/651/L15ivo://CDS.VizieR/J/A+A/651/L15doi:10.26093/cds/vizier.36519015CDSMancera Pina P.E.Posti L.Pezzulli G.Fraternali F.Fall S.M.,Oosterloo T.Adams E.A.K.2022-01-17T11:30:37Z2021-07-29T07:04:23ZCDS support team

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

cds-question@unistra.frgalaxiesgalaxy-classification-systemsThe relations between the specific angular momenta (j) and masses (M) of galaxies are often used as a benchmark in analytic models and hydrodynamical simulations as they are considered to be amongst the most fundamental scaling relations. Using accurate measurements of the stellar (j*), gas (jgas), and baryonic (jbar) specific angular momenta for a large sample of disc galaxies, we report the discovery of tight correlations between j, M, and the cold gas fraction of the interstellar medium (fgas). At fixed fgas, galaxies follow parallel power laws in 2D (j, M) spaces, with gas-rich galaxies having a larger j* and jbar (but a lower jgas) than gas-poor ones. The slopes of the relations have a value around 0.7. These new relations are amongst the tightest known scaling laws for galaxies. In particular, the baryonic relation (jbar-Mbar-fgas), arguably the most fundamental of the three, is followed not only by typical discs but also by galaxies with extreme properties, such as size and gas content, and by galaxies previously claimed to be outliers of the standard 2D j-M relations. The stellar relation (j*-M*-fgas) may be connected to the known j*-M* bulge fraction relation; however, we argue that the jbar-Mbar-fgas relation can originate from the radial variation in the star formation efficiency in galaxies, although it is not explained by current disc instability models.2021A&A...651L..15Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/651/L15CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/647/A76 : Disc galaxies baryonic specific ang. mom. (Mancera Pina+, 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/651/L15https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/651/L15http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/651/L15https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/651/L15https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/651/L15http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/651/L15GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/651/L15/baryons (Galaxies used for the baryonic relation)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/651/L15/baryons?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/651/L15/baryons?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/651/L15/baryons?GETtext/xml+votable180.050000true189.667083332.76638890.005555555555555556Cone search capability for table J/A+A/651/L15/gas (Galaxies used for the gas relation)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/651/L15/gas?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/651/L15/gas?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/651/L15/gas?GETtext/xml+votable180.050000true189.667083332.76638890.005555555555555556Cone search capability for table J/A+A/651/L15/stars (Galaxies used for the stellar relation)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/651/L15/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/651/L15/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/651/L15/stars?GETtext/xml+votable180.050000true147.594868931.48827690.0055555555555555566/975 1114 2320 2383 2409 2709 2866 3389 3511 3519 4511 5174 5329 5463 5469 5500 5503-5504 5545 5581 5584 5587 5589 5591 5594 5596 5623 5625 5628-5629 5631 5636 5751 5827 5956 5967 5975 5982 6502 6604 6619 6623 7132 7241 7303 7602 7606 7743 7799 7878 7882 7957 9855 10511 10607 10662 10762 10841 10847 10881 10908 10924-10925 10927 10930 10935 10941 10955 10977 10979 10990-10991 11000 11019 11030 11092 11127 11227 11696 11724 12047 13489 13516 13522 13668 15551 15592 15594 16441 16519 16655 16701 17165 19697 20353 20532 25960 26271 27030 27514 27728 27918 28077 28087 28123 28149 28167 28299 28463 28510 28529 28535 28610 28637-28638 33685 34531 35214 35514 35536 36974 37437 38102 38329 38390 38846 38941 41432 41949 43420 43427 43430 46597 48942https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/651/L15?format=asciiOpticaldefaultJ/A+A/651/L15/baryonsGalaxies used for the baryonic relationSimbadNameSimbad column added by the CDSmeta.idcharHTHubble type (1)meta.noteintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameGalaxy IDmeta.id;meta.maincharMassMasssolMassphys.massdoublee_Massrms uncertainty on MasssolMassstat.error;phys.massdoublejSpecific angular momentumkpc.km/sphys.angMomentumfloate_jrms uncertainty on jkpc.km/sstat.errorfloatfgasGas fractionphys.mass;arith.ratiofloate_fgasrms uncertainty on fgasstat.errorfloatDistDistancekpcpos.distancefloate_Distrms uncertainty on Distkpcstat.errorfloatc(lM-lfgas)Correlation coefficient between uncertainties of log(M) and log(fgas)stat.correlationfloatc(lM-lj)Correlation coefficient between uncertainties of log(M) and log(j)stat.correlationfloatc(lfgas-lj)Correlation coefficient between uncertainties of log(fgas) and log(j)stat.correlationfloatPapIDisplay the Mancera Pina et al., 2021, Cat. J/A+A/647/A76 datameta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/A+A/651/L15/gasGalaxies used for the gas relationSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameGalaxy IDmeta.id;meta.maincharMassMasssolMassphys.massdoublee_Massrms uncertainty on MasssolMassstat.error;phys.massdoublejSpecific angular momentumkpc.km/sphys.angMomentumfloate_jrms uncertainty on jkpc.km/sstat.errorfloatfgasGas fractionphys.mass;arith.ratiofloate_fgasrms uncertainty on fgasstat.errorfloatDistDistancekpcpos.distancefloate_Distrms uncertainty on Distkpcstat.errorfloatHTHubble type (1)meta.noteintc(lM-lfgas)Correlation coefficient between uncertainties of log(M) and log(fgas)stat.correlationfloatc(lM-lj)Correlation coefficient between uncertainties of log(M) and log(j)stat.correlationfloatc(lfgas-lj)Correlation coefficient between uncertainties of log(fgas) and log(j)stat.correlationfloatPapIDisplay the Mancera Pina et al., 2021, Cat. J/A+A/647/A76 datameta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/A+A/651/L15/starsGalaxies used for the stellar relationSimbadNameSimbad column added by the CDSmeta.idcharNameGalaxy IDmeta.id;meta.maincharMassMasssolMassphys.massdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordinte_Massrms uncertainty on MasssolMassstat.error;phys.massdoublejSpecific angular momentumkpc.km/sphys.angMomentumfloate_jrms uncertainty on jkpc.km/sstat.errorfloatfgasGas fractionphys.mass;arith.ratiofloate_fgasrms uncertainty on fgasstat.errorfloatDistDistancekpcpos.distancefloate_Distrms uncertainty on Distkpcstat.errorfloatHTHubble type (1)meta.noteintc(lM-lfgas)Correlation coefficient between uncertainties of log(M) and log(fgas)stat.correlationfloatc(lM-lj)Correlation coefficient between uncertainties of log(M) and log(j)stat.correlationfloatc(lfgas-lj)Correlation coefficient between uncertainties of log(fgas) and log(j)stat.correlationfloatPapIDisplay the Mancera Pina et al., 2021, Cat. J/A+A/647/A76 datameta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main