J/ApJS/247/17ivo://CDS.VizieR/J/ApJS/247/17doi:10.26093/cds/vizier.22470017CDSRoman-Lopes A.Roman-Zuniga C.G.Tapia M.Minniti D.Borissova J.2023-06-06T09:01:39Z2021-02-24T13:35:09ZCDS support team

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

cds-question@unistra.frob-starsstellar-spectral-typesinfrared-astronomyspectroscopyline-intensitiesinfrared-photometrygiant-starsWe have applied the semi-empirical spectral analysis, developed by the Sloan Digital Sky Survey (SDSS)-IV/Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE2) Massive Star Team, to a large sample of new O- and B-type stars identified along the Sagittarius spiral arm, in the direction of the southern star clusters NGC3603 and NGC3576. We obtained H-band spectra for 265 point sources, using the APOGEE2-S spectrograph at the du Pont Telescope at the Las Campanas Observatory. We analyzed the associated spectral features deriving spectral types, as well as the massive star distribution along the line of sight. From a total of 265 science targets, 95 are classified as mid- to late-O-type stars (for which only 10 O-type stars are previously known in the literature), 38 are found to be early- to mid-B-type stars, and 32 are classified as either yellow or blue supergiants, completing a total of 165 massive stars.2020ApJS..247...17Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/247/17CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIII/284 : APOGEE-2 data from DR16 (Johnsson+, 2020)I/347 : Distances to 1.33 billion stars in Gaia DR2 (Bailer-Jones+, 2018)II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+, 2003)J/ApJ/508/397 : H-band Spectral Standards (Meyer+ 1998)J/ApJS/224/4 : GOSSS III. Additional O-type systems (Maiz Apellaniz+, 2016)J/A+A/592/A149 : UBVI CCD photom. of Carina region stars (Molina-Lera+, 2016)J/MNRAS/465/1807 : Deep OB star population in Carina (Mohr-Smith+, 2017)J/ApJ/855/68 : Massive stars in SDSS-IV/APOGEE SURVEY (Roman-Lopes+, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/247/17https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/247/17http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/247/17https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/247/17https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/247/17http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/247/17GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/247/17/stars (SDSS-IV/APOGEE2 survey of massive stars in the Sagittarius Arm, line parameters and spectral types estimates (Tables 2 and 3))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/247/17/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/247/17/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/247/17/stars?GETtext/xml+votable180.050000true166.967375-60.90152780.0055555555555555566/37921-379261.1166583743361574e-19 1.2918781580533825e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/247/17?format=asciiInfrareddefaultJ/ApJS/247/17/starsSDSS-IV/APOGEE2 survey of massive stars in the Sagittarius Arm, line parameters and spectral types estimates (Tables 2 and 3)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/165] Internal identifiermeta.idintOTType of object (1)src.classcharAPOGEEAPOGEE identifier (2MHHMMSSss+DDMMSSs; J2000)meta.id;meta.maincharONameLiterature identifiermeta.idcharHmag[7.6/13] Apparent 2MASS H band magnitudemagphot.mag;em.IR.HfloatSpTypeLitterature spectral type and luminosity class; if anysrc.spTypecharr_SpTypeReference for SpTypemeta.ref;pos.framecharEWBr11[0.4/7.4]? Equivalent width of Br11 line (1)0.1nmspect.line.eqWidthfloatnullableFWHMBr11[8.0/47]? FWHM of Br11 line (1)0.1nmspect.line.width;spect.linefloatnullableEWBr13[0.3/9.5]? Equivalent width of Br13 line (1)0.1nmspect.line.eqWidthfloatnullableFWHMBr13[10.0/88]? FWHM of Br13 line (1)0.1nmspect.line.width;spect.linefloatnullableEWHeII7-12[0.1/0.9]? Equivalent width of HeII 7-12 line (1)0.1nmspect.line.eqWidthfloatnullableFWHMHeII7-12[6.5/20]? FWHM of He II 7-12 line (1)0.1nmphys.angSizefloatnullableEWHeII7-13[0.1/0.7]? Equivalent width of HeII 7-13 line (1)0.1nmspect.line.eqWidthfloatnullableFWHMHeII7-13[9/20]? FWHM of He II 7-13 line (1)0.1nmphys.angSizefloatnullableSpTSpectral type from this worksrc.spTypecharLClLuminosity classsrc.class.luminositychar2MDisplay the 2MASS data (Cutri+ 2003, II/246)meta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPositions from APOGEE names (right ascension part)degpos.eq.ra;meta.mainnullable_DEPositions from APOGEE names (declination part)degpos.eq.dec;meta.mainnullable