J/ApJ/844/40ivo://CDS.VizieR/J/ApJ/844/40doi:10.26093/cds/vizier.18440040CDSHumphreys R.M.Davidson K.Hahn D.Martin J.C.Weis K.2017-12-13T18:27:58Z2017-10-20T15:00:17ZCDS support team

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

cds-question@unistra.frvariable-starsgiant-starsextinctionabsolute-magnitudegalaxiesWe present HR diagrams for the massive star populations in M31 and M33, including several different types of emission-line stars: the confirmed luminous blue variables (LBVs), candidate LBVs, B[e] supergiants, and the warm hypergiants. We estimate their apparent temperatures and luminosities for comparison with their respective massive star populations and evaluate the possible relationships of these different classes of evolved, massive stars, and their evolutionary state. Several of the LBV candidates lie near the LBV/S Dor instability strip that supports their classification. Most of the B[e] supergiants, however, are less luminous than the LBVs. Many are very dusty with the infrared flux contributing one-third or more to their total flux. They are also relatively isolated from other luminous OB stars. Overall, their spatial distribution suggests a more evolved state. Some may be post-RSGs (red supergiants) like the warm hypergiants, and there may be more than one path to becoming a B[e] star. There are sufficient differences in the spectra, luminosities, spatial distribution, and the presence or lack of dust between the LBVs and B[e] supergiants to conclude that one group does not evolve into the other.2017ApJ...844...40Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/844/40CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/469/355 : Teff, B-V and BC relation (Flower, 1996)J/ApJ/469/629 : UV-brightest stars of M33 and its nucleus (Massey+ 1996)J/AJ/131/2478 : M31 and M33 UBVRI photometry (Massey+, 2006)J/ApJ/690/837 : CN and CO observations toward AGB stars (Milam+, 2009)J/MNRAS/395/1409 : Type II-P SN progenitor constraints (Smartt+, 2009)J/A+A/522/A3 : M33 CO(2-1) and HI integrated intensity maps (Gratier+, 2010)J/AJ/142/139 : A new catalog of HII regions in M31 (Azimlu+, 2011)J/A+A/537/A146 : Stellar models with rotation. 0.8<M<120 (Ekstrom+, 2012)J/ApJ/745/156 : M31 Cepheids with HST/WFC3 (Riess+, 2012)J/ApJ/790/48 : Variable stars in M31 & M33. II. LBVs (Humphreys+, 2014)J/ApJ/795/170 : Sample SNRs for M31 and M33 (Jennings+, 2014)J/ApJ/825/50 : Variable stars in M31 & M33. III. YSGs & RSGs (Gordon+, 2016)J/AJ/152/62 : Revised LGGS UBVRI photom. of M31 & M33 stars (Massey+, 2016)J/A+A/601/A76 : DIRECT LCs of 21 luminous YSGs in M33 (Kourniotis+, 2017)J/ApJ/836/64 : Luminous variable stars in M31 & M33. IV. (Humphreys+, 2017)http://etacar.umn.edu/LuminousStars/M31M33/ : M31 & M33 HST Treasury Programhttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/844/40https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/844/40http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/844/40https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/844/40https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/844/40http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/844/40GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/844/40/extinc (Extinction, luminosities, and temperatures for the luminous blue variables (LBVs) and candidates (table 2) and for the B[e] supergiants and warm hypergiants (table 3))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/844/40/extinc?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/844/40/extinc?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/844/40/extinc?GETtext/xml+votable180.050000true10.760541.82005560.0055555555555555566/2154 2155 2241 2622 2623 2666 2708 2709 2752https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/844/40?format=asciidefaultJ/ApJ/844/40/extincExtinction, luminosities, and temperatures for the luminous blue variables (LBVs) and candidates (table 2) and for the B[e] supergiants and warm hypergiants (table 3)SimbadNameSimbad column added by the CDSmeta.idcharVarVariable type (1)meta.code;src.varcharStarStar designationmeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGalGalaxy name (M33 or M31)meta.id.parentcharf_StarFlag(s) on Star (2)meta.codecharAvS1[0.3/2.4]? Extinction (or lower range) from neighboring stars methodmagphys.absorptionfloatnullableAvS2[0.9]? Upper range of AvS1magphys.absorptionfloatnullableo_AvS1? Number of nearby stars usedmeta.numberintnullableu_AvS1Uncertainty flag on AvSmeta.code.errorcharAvHI[0.3/2.1]? Extinction from N_HI_ methodmagphys.absorptionfloatnullableAv[0.3/2.4]? Adopted extinctionmagphys.absorptionfloatnullableu_AvUncertainty flag on Avmeta.code.errorcharVMag[-10.2/-5.3]? Extinction-corrected absolute visual magnitudemagphys.magAbs;em.opt.Vfloatnullableu_VMag[:v] VMag uncertainty flag (:) or var flag (v)meta.code.errorcharTemp1[5000/42000]? Temperature (or upper range)Kphys.temperatureintnullableu_Temp1[:-] Uncertainty flag (or range flag) on Temp1meta.code.errorcharTemp2? Lower range of TemperatureKphys.temperatureintnullableMbol1[-12.6/-6.2]? Bolometric magnitude (or lower range)magphys.magAbs.bolfloatnullableu_Mbol1[:] Uncertainty flag on Mbol1meta.code.errorcharMbol2? Upper range of Bolometric magnitudemagphys.magAbs.bolfloatnullableGroupStellar group (3)meta.idcharLGGSDisplay data from Massey+, 2016, J/AJ/152/62 within 0.5"meta.ref.urlintnullablePapIIDisplay data from Paper II (Humphreys+, 2014, J/ApJ/790/48)meta.ref.urlintnullablePapIVDisplay data from Paper IV (Humphreys+, 2017, J/ApJ/836/64 )meta.ref.urlintnullable_RAPositions from SIMBAD or from LGGS names or from the author (right ascension part)degpos.eq.ra;meta.mainnullable_DEPositions from SIMBAD or from LGGS names or from the author (declination part)degpos.eq.dec;meta.mainnullable