J/AJ/149/7ivo://CDS.VizieR/J/AJ/149/7doi:10.26093/cds/vizier.51490007CDSChojnowski S.D.Whelan D.G.Wisniewski J.P.Majewski S.R.Hall M.,Shetrone M.Beaton R.Burton A.Damke G.Eikenberry S.Hasselquist S.,Holtzman J.A.Meszaros S.Nidever D.Schneider D.P.Wilson J.,Zasowski G.Bizyaev D.Brewington H.Brinkmann J.Ebelke G.,Frinchaboy P.M.Kinemuchi K.Malanushenko E.Malanushenko V.,Marchante M.Oravetz D.Pan K.Simmons A.2017-09-29T09:04:05Z2015-03-18T07:52:00ZCDS support team

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

cds-question@unistra.frbe-starsemission-line-starsspectroscopystellar-spectral-typesThe Apache Point Observatory Galactic Evolution Experiment (APOGEE) has amassed the largest ever collection of multi-epoch, high-resolution (R~22500), H-band spectra for B-type emission line (Be) stars. These stars were targeted by APOGEE as telluric standard stars and subsequently identified via visual inspection as Be stars based on HI Brackett series emission or shell absorption in addition to otherwise smooth continua and occasionally non-hydrogen emission features. The 128/238 APOGEE Be stars for which emission had never previously been reported serve to increase the total number of known Be stars by ~6%. Because the H band is relatively unexplored compared to other wavelength regimes, we focus here on identification of the H-band lines and analysis of the emission peak velocity separations ({Delta}v_p_) and emission peak intensity ratios (V/R) of the usually double-peaked HI and non-hydrogen emission lines. HI Br11 emission is found to preferentially form in the circumstellar disks at an average distance of ~2.2 stellar radii. Increasing {Delta}v_p_ toward the weaker Br12-Br20 lines suggests these lines are formed interior to Br11. By contrast, the observed IR FeII emission lines present evidence of having significantly larger formation radii; distinctive phase lags between IR FeII and HI Brackett emission lines further supports that these species arise from different radii in Be disks. Several emission lines have been identified for the first time including CI 16895, a prominent feature in the spectra for almost a fifth of the sample and, as inferred from relatively large {Delta}v_p_ compared to the Br11-Br20, a tracer of the inner regions of Be disks. Emission lines at 15760{AA} and 16781{AA} remain unidentified, but usually appear along with and always have similar line profile morphology to FeII 16878. Unlike the typical metallic lines observed for Be stars in the optical, the H-band metallic lines, such as FeII 16878, never exhibit any evidence of shell absorption, even when the HI lines are clearly shell-dominated. The first known example of a quasi-triple-peaked Br11 line profile is reported for HD253659, one of several stars exhibiting intra- and/or extra-species V/R and radial velocity variation within individual spectra. Br11 profiles are presented for all discussed stars, as are full APOGEE spectra for a portion of the sample.2015AJ....149....7Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/149/7CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/mk : Catalogue of Stellar Spectral Classifications (Skiff, 2009-2014)http://www.sdss3.org/dr10/irspec/ : SDSS-III websiteJ/AJ/148/24 : Extinction maps in the bulge from APOGEE (Schultheis+, 2014)J/AJ/146/156 : APOGEE M-dwarf survey. I. 1st yr velocities (Deshpande+, 2013)J/AJ/146/133 : Stellar parameters from SDSS-III APOGEE DR10 (Meszaros+, 2013)J/other/BASI/39.517 : Spectroscopy of classical Be stars (Mathew+, 2011)J/ApJ/700/1216 : Spectroscopy of Be stars in open clusters (McSwain+, 2009)J/A+A/459/137 : Bright Be shell stars (Rivnius+, 2006)J/A+A/451/1053 : Fundamental parameters of Be stars (Fremat+, 2006)J/A+A/378/861 : Spectroscopy of Be stars (Chauville+, 2001)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/149/7https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/149/7http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/149/7https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/149/7https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/149/7http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/149/7GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/149/7/tablea1 (List of ABE (APOGEE Be) stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/149/7/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/149/7/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/149/7/tablea1?GETtext/xml+votable180.050000true305.353583337.38005560.0055555555555555566/1243 1302 1305 1310 1321 1329 1331 1332 1347 1418 1430 1433 1448 1449 1450 1477 1514 1539 1718 1725 1816 1818 1830 1938 1958 1960 1976 2935 2940 2955 2993 3004 3024 3045 3058 3060 3139 3235 3250 3326 3587 3590 3616 3737 3739 3751 3816 3822 3840 6724 6822 9686 12936 12955 12981 12982 12983 12988 13024 13111 13981 14003 14004 14007 14047 14067 14068 14078 14190 14193 14197 14217 14220 14230 14264 14274 14311 14428 14430 14587 14622 14640 14641 14644 14645 14715 14765 15384 15385 15407 15416 15417 15475 15493 15649 15668 15674 15687 15703 15800 20551 20560 20801 20861 21439 21534 21558 21665 21673 21677 21698 21729 22029 22040 22044 22046 22076 22079 22087 22131 22167 22174 22210 22230 22255 22517 23581 23629 23632 23634 23755 23767 23778 23794 23905 23941 23946 23949 23970 23976 23980 23998 24113 24116 24117 24145 24180 24182 24266 24293 24325 24326 24357 24359 24368 24372 24375 24376 24384 24442 24446 24466 24467 24473 24483 24490 24505 24512 28775 28778 28779 28782 28794 28822 28823 28846 28853 28863 28870 28874 28888 28894 28895 28911 28912 28916 28921 28922 29066 29095 29097 29100 29111 29113 29117 29160 29162 29183 29202 29285 29457 29506 29507 29511 29512 29518 29524 29525 29530 29531 29533 29535 29879 29885 30216 30222 30223 30227 30236 30245 30258 30264 30327 30617 30622 30713 317481.1166583743361574e-19 1.2918781580533825e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/149/7?format=asciiOpticaldefaultJ/AJ/149/7/tablea1List of ABE (APOGEE Be) starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_ABE[TAQ] Group of ABE stars (1)meta.notecharABEIdentifier of the APOGEE B-type emission line (Be) star (2)meta.id;meta.maincharNewIndicates a newly identified Be starmeta.codechar2MASS2MASS identifier (Cat. II/246)meta.idcharHD? HD identifiermeta.idintnullableNameCommon star namemeta.idcharVmagV band magnitude from SIMBAD databasemagphot.mag;em.opt.VfloatHmag2MASS H band magnitudemagphot.mag;em.IR.HfloatSpTLiterature spectral typesrc.spTypecharf_SpTIndicates that the original source of the spectral type could not be tracked down (3)meta.codecharr_SpT? Reference on SpT where available; in refs.dat filemeta.ref;pos.frameintnullablel_dVBr11[<] Upper limit flag on dVBr11meta.code.errorchardVBr11? Mean velocity separation of the violet and red emission peaks {Delta}v_p_ of Br11 1.6811{mu}mkm/sphys.veloc;arith.diffintnullablef_dVBr11No velocity despite line detection (4)meta.codechardV15760? {Delta}v_p_ of 1.5760{mu}m emissionkm/sphys.veloc;arith.diffintnullablef_dV15760No velocity despite line detection (4)meta.codechardV16781? {Delta}v_p_ of 1.6781{mu}m emissionkm/sphys.veloc;arith.diffintnullablef_dV16781No velocity despite line detection (4)meta.codechardV16792? {Delta}v_p_ of FeII 1.6792{mu}m emissionkm/sphys.veloc;arith.diffintnullablef_dV16792No velocity despite line detection (4)meta.codechardV16878? {Delta}v_p_ of FeII 1.6878{mu}m emissionkm/sphys.veloc;arith.diffintnullablef_dV16878No velocity despite line detection (4)meta.codechardVCI? {Delta}v_p_ of CI 1.6895{mu}m emissionkm/sphys.veloc;arith.diffintnullablef_dVCINo velocity despite line detection (4)meta.codecharSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPositions from SIMBAD database (right ascension part)degpos.eq.ra;meta.main_DEPositions from SIMBAD database (declination part)degpos.eq.dec;meta.mainJ/AJ/149/7/refsReferencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference identifierpos.frameintBibCodeBibliographic codemeta.bib.bibcodecharAutAuthor's namemeta.bib.authorcharCatCatalog in VizieR databasemeta.dataset;meta.tablechar