J/A+A/674/A212ivo://CDS.VizieR/J/A+A/674/A212doi:10.26093/cds/vizier.36740212CDSde Burgos A.Simon-Diaz S.Urbaneja M.A.NegueruelaI.2024-11-06T20:04:39Z2023-06-26T08:52:56ZCDS support team

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

cds-question@unistra.frob-starsspectroscopystellar-distancevisible-astronomyBlue supergiants (BSGs) are key objects to study the intermediate phases of massive star evolution, helping to constrain evolutionary models. However, the lack of a holistic study of a statistically significant and unbiased sample of these objects makes several long-standing questions about their physical properties and evolutionary nature remain unsolved. The present and other upcoming papers of the IACOB series are focused in studying - from a pure empirical point of view - a sample of about 500 Galactic O9-B9 stars with luminosity classes I and II (plus 250 late O- and early B-type stars with luminosity classes III, IV and V) and covering distances up to ~4kpc from the Sun. We compile an initial set of ~11000 high-resolution spectra from ~1600 Galactic late O- and B-type stars. We use a novel spectroscopic strategy based on a simple fitting of the H{beta} line to select stars in a specific region of the spectroscopic HR diagram. We evaluate the completeness of our sample using the Alma Luminous Star catalog (ALS III) and Gaia-DR3 data. We show the benefits of the proposed strategy for identifying BSGs descending, in the context of single star evolution, from stellar objects born as O-type stars. The resulting sample reaches a high level of completeness with respect to the ALS III catalog, gathering ~80% of all-sky targets brighter than Bmag<9 located within 2kpc. However, we identify the need for new observations in specific regions of the Southern hemisphere. We have explored a very fast and robust method to select BSGs, providing a valuable tool for large spectroscopic surveys as WEAVE-SCIP or 4MIDABLE-LR, and highlighting the risk of using spectral classifications from the literature. Upcoming studies will make use of this large and homogeneous spectroscopic sample to study specific properties of these stars in detail. We initially provide first results about their rotational properties (in terms of projected rotational velocities, vsini)2023A&A...674A.212Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/674/A212CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/352 : Distances to 1.47 billion stars in Gaia EDR3J/A+A/643/A116 : HR study of massive supergiants in Per OB1 (de Burgos+, 2020)J/A+A/562/A135 : Northern Galactic OB stars vsini (Simon-Diaz+, 2014)J/A+A/597/A22 : Massive O- and B-type stars velocities (Simon-Diaz+, 2017)J/A+A/613/A65 : Spectroscopic parameters of O-type stars (Holgado+, 2018)J/A+A/613/A9 : Extinction towards Galactic O stars (Maiz Apellaniz+, 2018)J/A+A/638/A157 : O-type stars near ZAMS elusive detection (Holgado+, 2022)J/A+A/665/A150 : Rotational properties of Galactic O-type stars (Holgado+ 2022)J/A+A/672/A22 : Binarity in fast-rotating O-type stars (Britavskiy+, 2023)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/674/A212https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/674/A212http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/674/A212https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/674/A212https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/674/A212http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/674/A212GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/674/A212/tableh1 (Relevant information for the stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/674/A212/tableh1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/674/A212/tableh1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/674/A212/tableh1?GETtext/xml+votable180.050000true270.1162778-29.82437140.005555555555555556Cone search capability for table J/A+A/674/A212/tableh2 (Photometric and kinematic data from Gaia DR3)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/674/A212/tableh2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/674/A212/tableh2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/674/A212/tableh2?GETtext/xml+votable180.050000true270.116265-29.8243740.005555555555555556Cone search capability for table J/A+A/674/A212/tableh3 (Photometric and kinematic data from Hipparcos)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/674/A212/tableh3?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/674/A212/tableh3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/674/A212/tableh3?GETtext/xml+votable180.050000true273.440859-21.0587880.0055555555555555565/814 7229 6/1198 1293 1297 1300 1302-1303 1323 1330 1633 1777 1787 1790 1824 1946 2544 2806 2909-2910 2940-2941 2957 3011 3032 3035 3037 3051 3058-3060 3066 3068 3153 3188 3214 3231 3235 3239 3243-3245 3249 3251 3253-3255 3260 3274 3278 3284 3286 3296 3298 3300 3305 3307-3308 3312 3315 3324 3329 3331 3334 3373 3384 3430 3585 3591 3598 3600-3601 3603-3604 3606 3609-3610 3619 3621-3623 3625-3626 3630-3632 3641 3644 3659-3660 3681 3683 3713-3714 3721-3724 3726-3727 3747 3785 4016 5506 8490 12400 12965 12972 12981 13001 13115 13214 13227 13255 13273 13276 13291 13557 13729 13757 13953 13963 13999 14006 14015 14062 14075 14173 14175 14179 14197 14207 14228 14240 14246-14248 14259 14263-14264 14267 14286 14295 14299 14301-14302 14305-14307 14309-14310 14312 14324-14325 14353 14356 14360 14368 14387 14425 14431 14435 14459 14595 14622-14625 14628 14630-14632 14636 14641-14646 14648-14649 14654-14655 14679 14690-14691 14694 14712 14734 14737 14741 14745 14754 14777 14783-14784 14789 14793 14795 14824-14825 15374 15392 15396 15399 15442 15476 15478 15481 15486 15519 15553 15573 15577 15611 15622-15625 15654 15656 15663 15672 15674 15677 15683 15685 15687 15732 15747-15748 15765 15808 16023 18439 20107 20613 20759 20767 20801 20820 20828 20834 20847 20860-20861 20915 20985 21401 21438 21465 21506 21517 21530-21531 21534 21641 21644 21646 21655-21656 21671 21680 21682 21711 21997 22033 22039 22047 22079 22114 22122-22123 22164 22182 22208 22214 22216 22218 22223 22243 22246 22249 22264 22787 22854 22862 22884 23360 23374 23638 23670 23717 23946 23962 23979 23983-23984 23986 23998 24325 24333-24334 24338 24340 24370 24379 24384 24424 24486 24504 24511 24552 24555 27498 28714 28719 28796 28809 28837 28839 28864-28865 28867 28888 28890-28891 28895 28903 28913 28915 29072 29084-29085 29088-29089 29091 29094-29095 29098 29100-29101 29106-29107 29109-29110 29113-29114 29116-29117 29138 29153-29154 29157 29162 29175 29190 29249 29291 29299 29304 29445 29453 29456 29459-29461 29463-29464 29467 29504 29508 29510-29512 29525 29527 29866 29893 30215 30221 30256 30287 30332-30333 30708 30718 30818 30925 31056 31705 31748 31756 32793 33652 37209 37233 37316 37331 37333-37334 37339 37696 37716-37717 37754 37768 37833 37841 37869 37871 37877 37888 37893 37897-37898 37901 37905 37907 37922-37923 37926 37930 37932 38016 38019 38022 38024 38066 38074 38110 38812 39209 39232 39236 39252 39254 39264 39297 39374 39417 39729 39754 39831 39853 39873 39876 39894 39907 39931 39934 39937 39971 40068 40122 40490 40743 41464 41510 41519 41574 41592 41599 41615 41630 41636 41646 41653 41655 41672-41673 41675 41677 41686 41692 41702 41713 41758 41769 41812-41813 41858 41867 41963 42075 42080 42116 42139 42157 42190 42206 42209 42213 42215 42221 42226 42228 42236 42283 42287 42299 42303 42324 42370 42383 42394-42395 42410 42416-42417 42439 42458 42470-42471 42477 42489 42764 42977 43008 43011 43019 43030 43033 43035-43036 43041 43045 43086 43088 43119 43144 43165 43234 44717 47648 480421.9867573869263685e-19 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/674/A212?format=asciiOpticaldefaultJ/A+A/674/A212/tableh1Relevant information for the starsSimbadNameSimbad column added by the CDSmeta.idcharnullableNameIdentificator of the star, ordered by Galactic longitudemeta.id;meta.maincharprimaryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPh-Kinindicates photometric and kinematic data from Gaia DR3 and/or Hipparcosmeta.ref.urlcharn_Name[*] Note on Name (1)meta.notecharBmagApparent B magnitude (Simbad)magphot.mag;em.opt.BfloatSpTSpectral type of the star (Simbad) (2)src.spTypecharLCLuminosity class of the star (Simbad) (2)src.class.luminositycharRefSpFits file-name of the best spectrummeta.id;meta.filecharS/NSignal-to-noise ratio in 4000-5000{AA}stat.snrintFW3414Hb? Hbeta width difference at 3/4-1/4 depths (3)0.1nmspect.line.widthfloatnullableSB2+Identifier of spectroscopic binary (4)meta.codecharHalphaMorphological classification of H{alpha}meta.code.classcharHbetaMorphological classification of H{beta}meta.code.classcharvsiniProjected rotational velocitykm/sphys.veloc.rotatint_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/674/A212/tableh2Photometric and kinematic data from Gaia DR3_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.raindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.decindexedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latGmagG magnitude from Gaia DR3magphot.mag;em.optfloatBPmag? BP magnitude from Gaia DR3magphot.mag;em.opt.BfloatnullableRPmag? RP magnitude from Gaia DR3magphot.mag;em.opt.Rfloatnullableplx? Parallax from Gaia DR3 (1)maspos.parallax.trigfloatnullablee_plx? Uncertainty on plxmasstat.error;pos.parallaxfloatnullablepmRAProper motion along RA (pmRA*cosDE)mas/yrpos.pm;pos.eq.rafloate_pmRAUncertainty on pmRAmas/yrstat.error;pos.pm;pos.eq.rafloatpmDEProper motion along DEmas/yrpos.pm;pos.eq.decfloate_pmDEUncertainty on pmDEmas/yrstat.error;pos.pm;pos.eq.decfloatRUWERenormalised unit weight errorstat.errorfloatDistGeometric distance from Bailer-Jones et al. (2021, Cat. I/352)pcpos.distanceintb_DistLower value of Distpcpos.distance;stat.minintB_DistUpper value of Distpcpos.distance;stat.maxintNameIdentificator of the star, ordered by Galactic longitudemeta.id;meta.maincharJ/A+A/674/A212/tableh3Photometric and kinematic data from Hipparcos_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.raindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.decindexedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latB-VB-V magnitude from Hipparcosmagphot.color;em.opt.B;em.opt.Vfloatplx? Parallax from Hipparcos (1)maspos.parallax.trigfloatnullablee_plx? Uncertainty on plxmasstat.error;pos.parallaxfloatnullablepmRAProper motion along RA (pmRA*cosDE)mas/yrpos.pm;pos.eq.rafloatpmDEProper motion along DEmas/yrpos.pm;pos.eq.decfloatDist? Distance the inverse of the parallax (2)pcpos.distanceintnullablee_Dist? Uncertainty on Distpcstat.errorintnullableNameIdentificator of the starmeta.id;meta.mainchar