J/AJ/169/174ivo://CDS.VizieR/J/AJ/169/174doi:10.26093/cds/vizier/be-59-5eCDSChen P.Chen B.Fang X.Yuan H.Zhang B.Zhang X.Sun J.Liu X.2026-07-02T11:45:28Z2026-01-09T10:17:25ZCDS support team

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

cds-question@unistra.frsupergiant-starsnebulaegalaxiesglobular-star-clustersopen-star-clustersspectroscopyradial-velocityvisible-astronomySpectroscopic observations of various tracers in nearby galaxies, such as Andromeda (M31), play a crucial role in identifying and classifying individual stellar populations and nebular objects, thereby enhancing our understanding of galactic composition, environment, and dynamics, as well as stellar evolution. While the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) survey of M31 has produced extensive data sets, a comprehensive catalog of emission-line nebulae, star clusters, and supergiants is yet to be completed. In this paper, we present a final catalog of 384 emission-line nebulae, 380 star clusters, and 375 supergiants and candidates in M31, as carefully selected and identified from the LAMOST spectroscopic database. These objects were classified using a random forest algorithm, followed by thorough visual examinations of their spectral characteristics, as well as morphologies revealed by archive images. For emission-line nebulae, we measured radial velocities and relative fluxes of emission lines, enabling further classification of planetary nebulae and H ii regions. Additionally, we identified 245 emission-line nebulae in M33. This work lays the data foundation for the study of M31 and offers valuable tracers to investigate M31's structure and evolution.2025AJ....169..174Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/169/174CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/143 : Revised Bologna Catalog of M31 clusters, V.5 (Galleti+ 2012)V/156 : LAMOST DR7 catalogs (Luo+, 2019)J/A+A/416/917 : Revised Bologna Cat. of M31 globular clusters (Galleti+, 2004)J/AJ/131/2478 : M31 and M33 UBVRI photometry (Massey+, 2006)J/MNRAS/369/120 : Kinematic survey of planetary nebulae in M31 (Merrett+, 2006)J/ApJ/703/441 : Yellow supergiants in M31 (Drout+, 2009)J/ApJ/703/420 : Red supergiants in M31 (Massey+, 2009)J/ApJ/750/97 : The yellow and red supergiants of M33 (Drout+, 2012)J/ApJ/752/95 : PHAT stellar cluster survey. I. Year 1 (Johnson+, 2012)J/ApJ/758/133 : Metallicity profile of M31 HII regions and PNe (Sanders+, 2012)J/other/RAA/15.1392 : LAMOST globular clusters in M 31 and M 33 (Chen+, 2015)J/ApJ/802/127 : PHAT stellar cluster survey. II. AP catalog (Johnson+, 2015)J/other/RAA/15.1438 : LAMOST new QSOs in M31 and M33 vicinity (Huo+, 2015)J/AJ/152/45 : LAMOST survey of star clusters in M31. II. (Chen+, 2016)J/ApJ/825/50 : Variable stars in M31 & M33. III. YSGs & RSGs (Gordon+, 2016)J/ApJ/826/224 : RSG and foreground candidates in M31 (Massey+, 2016)J/AJ/152/62 : Revised LGGS UBVRI phot. of M31 and M33 stars (Massey+, 2016)J/MNRAS/465/4180 : H{alpha} stars in M31 HST photometry (Prichard+, 2017)J/ApJ/868/55 : Large-scale struct. of M31 halo. II. PAndAS (McConnachie+, 2018)J/AJ/161/79 : Red supergiant stars in M31 and M33 (Massey+, 2021)J/ApJ/907/18 : Red Supergiants in M31 & M33. I. Complete sample (Ren+, 2021)J/A+A/645/A115 : 346 M31 star clusters and their parameters (Wang+, 2021)J/ApJ/925/76 : M33 with LAMOST surv. sp. I. PNe & HII regions (Alexeeva+, 2022)J/A+A/658/A51 : New M31 star cluster candidates (Wang+, 2022)J/ApJ/954/206 : A GCs search in M31 with Gaia, PS1, LAMOST,PAndAS (Wang+, 2023)J/MNRAS/536/3803 : Line fluxes & abund. in M31 HII regions (Bosomworth+, 2025)http://www.lamost.org/dr9/v1.0/ : LAMOST DR9 v1.0 websitehttp://lweb.cfa.harvard.edu/oir/eg/m31clusters/M31_Hectospec.html : Study ofhttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/169/174https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/169/174http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/169/174https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/169/174https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/169/174http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/169/174GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/169/174/table3 (Emission-line nebulae in M31 and M33 identified from the LAMOST database)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/169/174/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/169/174/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/169/174/table3?GETtext/xml+votable180.050000true11.4723342.147340.005555555555555556Cone search capability for table J/AJ/169/174/table4 (Star clusters in M31 identified from the LAMOST database)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/169/174/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/169/174/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/169/174/table4?GETtext/xml+votable180.050000true9.9625340.969630.005555555555555556Cone search capability for table J/AJ/169/174/table5 (Supergiants in M31 identified from the LAMOST database)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/169/174/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/169/174/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/169/174/table5?GETtext/xml+votable180.050000true10.901741.38720.0055555555555555565/655 666 676-677 6/2154-2155 2240-2241 2284 2567 2570 2589 2597-2598 2607 2610-2611 2613-2614 2616 2618-2619 2624 2644 2646-2647 2651 2656 2663 2668 2674 2677-2678 2682 2690 2694-2695 2701 2712-2714 2717 2729 2742 2752-2753 2755-2757 2764 2834 199553.322582951404819e-19 3.852589004194616e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/169/174?format=asciiOpticaldefaultJ/AJ/169/174/table3Emission-line nebulae in M31 and M33 identified from the LAMOST databaserecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLAMOSTLAMOST DR9 Source Designationmeta.id;meta.maincharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainM06[32.0/3296.0]? Object ID, Merrett+2006 (J/MNRAS/369/120)meta.idfloatnullableRVel-M06[-660/220]? Radial velocity, Merrett+2006 (J/MNRAS/369/120)km/sspect.dopplerVelocfloatnullableB24[3/294]? Object ID, Bosomworth+2025 (J/MNRAS/536/3803)meta.idintnullableRVel[-693/226] Total radial velocity (1)km/sspect.dopplerVelocfloate_RVel[0.2/32.6] Uncertainty in RVelkm/sstat.error;spect.dopplerVelocfloatRVel-b[-691/222.1]? Radial velocity from blue-spectrum nebular lines (1)km/sspect.dopplerVelocfloatnullablee_RVel-b[0.2/35.7]? Uncertainty in RVel-bkm/sstat.error;spect.dopplerVelocfloatnullableSimbadNameSimbad column added by the CDSmeta.idnullableRVel-r[-708.2/232]? Radial velocity from red-spectrum nebular lines (1)km/sspect.dopplerVelocfloatnullablee_RVel-r[0.3/40.1]? Uncertainty in RVel-rkm/sstat.error;spect.dopplerVelocfloatnullableN2[-2/1]? Line ratio, [NII]/H{alpha}spect.line.intensity;arith.ratiofloatnullableO3[-2/2]? Line ratio, [OIII] 5007A/H{beta}spect.line.intensity;arith.ratiofloatnullableHostHost, M31 or M33meta.id.parentcharLitLiterature classification (2)meta.code.classcharClassNew classification made in this work based on the LAMOST database (3)meta.code.classcharCommentsComments, including possible other sourcesmeta.notecharJ/AJ/169/174/table4Star clusters in M31 identified from the LAMOST databaseSimbadNameSimbad column added by the CDSmeta.idnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar cluster name (1)meta.id;meta.maincharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainRVel-RBC[-706/70]? Radial velocity, Revised Bologna Catalog (V/143)km/sspect.dopplerVelocfloatnullableRVel-Cad[-701/40]? Radial velocity, Nelson Cadwell (2)km/sspect.dopplerVelocfloatnullableRVel[-735/31.3] Radial velocity, LAMOSTkm/sspect.dopplerVelocfloate_RVel[1.2/268162] Uncertainty in RVelkm/sstat.error;spect.dopplerVelocdoubleAPID[1.0/15121.0]? Andromeda project identification number from Johnson+2015 (J/ApJ/802/127)meta.idfloatnullableStatus[1/2] Classification status (3)meta.code.classintJ/AJ/169/174/table5Supergiants in M31 identified from the LAMOST databaseRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainRVel[-605/47]? LAMOST radial velocitykm/sspect.dopplerVelocfloatnullablee_RVel[1/298041]? Uncertainty in RVelkm/sstat.error;spect.dopplerVelocdoublenullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLAMOSTLAMOST DR9 Source Designationmeta.id;meta.maincharRVel-exp[-537/-53] Expected radial velocity (1)km/sspect.dopplerVeloc;meta.modelledfloatRgal[1.1/25] Deprojected galactocentric distancekpcpos.distance;pos.galactocentricfloatPM31[0/1.0] Probability, M31 membermeta.code.memberfloatPMW[0/1] Probability, Milky Way membermeta.code.memberfloatVmag[15.3/23.3]? Local Group Galaxies Survey (J/AJ/131/2478) V-band Vega magnitudemagphot.mag;em.opt.VfloatnullableB-V[-4.2/2.45]? Local Group Galaxies Survey (J/AJ/131/2478) B-V colormagphot.color;em.opt.B;em.opt.VfloatnullableTypeClassification type (2)meta.code.classcharW24[1/1]? W24=1, common entries identified in Wu+2025 [2025RAA....25a5012W]meta.code;meta.refintnullableLGGSDisplay the Local Group Galaxies Survey (J/AJ/131/2478) datameta.ref.urlchar