J/AJ/150/41ivo://CDS.VizieR/J/AJ/150/41doi:10.26093/cds/vizier.51500041CDSGarmany C.D.Glaspey J.W.Braganca G.A.Daflon S.Borges Fernandes M.,Oey M.S.Bensby T.Cunha K.2018-05-29T17:30:44Z2015-10-05T12:18:26ZCDS support team

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

cds-question@unistra.fropen-star-clustersearly-type-starsbe-starsstellar-spectral-typesradial-velocityWe have determined projected rotational velocities, vsini, from Magellan/MIKE echelle spectra for a sample of 136 early B-type stars having large Galactocentric distances. The target selection was done independently of their possible membership in clusters, associations or field stars. We subsequently examined the literature and assigned each star as Field, Association, or Cluster. Our vsini results are consistent with a difference in aggregate vsini with stellar density. We fit bimodal Maxwellian distributions to the Field, Association, and Cluster subsamples representing sharp-lined and broad-lined components. The first two distributions, in particular, for the Field and Association are consistent with strong bimodality in vsini. Radial velocities are also presented, which are useful for further studies of binarity in B-type stars, and we also identify a sample of possible new double-lined spectroscopic binaries. In addition, we find 18 candidate Be stars showing emission at H{alpha}.2015AJ....150...41Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/150/41CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/125 : Photometry and Spectroscopy for Luminous Stars (Reed 2005)III/244 : Catalog of Stellar Rotational Velocities (Glebocki+ 2005)J/AJ/144/130 : Rotational velocities of nearby HIP B stars (Braganca+, 2012)J/ApJ/722/605 : A stellar rotation census of B stars (Huang+, 2010)J/AJ/134/1570 : Rotational velocities of OB stars (Daflon+, 2007)J/ApJ/648/580 : Rotational velocities in 19 open clusters (Huang+, 2006)J/ApJ/573/359 : Rotational velocities of B stars from BSC (Abt+, 2002)J/AJ/98/1305 : Stellar content of NGC 346 (Massey+, 1989)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/150/41https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/150/41http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/150/41https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/150/41https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/150/41http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/150/41GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/150/41/table1 (Observed and derived data)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/150/41/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/150/41/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/150/41/table1?GETtext/xml+votable180.050000true88.9204166720.078611110.0055555555555555566/20818 20822 20849 20852 21447 21517 21518 21519 21528 21541 21643 22022 22038 22080 22098 22115 22167 22208 22218 22244 22249 22252 22260 23637 23664 23674 23760 23765 23962 23969 23982 23993 23994 24151 24320 24341 24359 24368 24378 24387 39711 39732 39735 39751 39754 39759 39768 39770 39774 39780 39793 39795 39796 39798 39799 39804 39805 39892 39930 39931 40618 40619https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/150/41?format=asciidefaultJ/AJ/150/41/table1Observed and derived dataRefReference (3)meta.ref;pos.framecharHaH{alpha} emissionmeta.coderecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintALS[7/19267] Number in the ALS (Alma Luminous Stars) catalog (Reed 2003, cat. V/125)meta.id;meta.mainintVmag[10/14.7] Apparent V mag (Reed 2003, cat. V/125)magphot.mag;em.opt.VfloatW4026[0.9/6.12]? The HeI{lambda}4026 Full Width at Half Maximum (FWHM) (in {AA})0.1nmspect.line.widthfloatnullableW4387[0.81/8.76]? The HeI{lambda}4388 Full Width at Half Maximum (FWHM) (in {AA})0.1nmspect.line.widthfloatnullableW4471[0.8/7.68]? The HeI{lambda}4471 Full Width at Half Maximum (FWHM) (in {AA})0.1nmspect.line.widthfloatnullablevsini[0/310]? Mean HeI derived rotational velocity vsin(i)km/sphys.veloc.rotat;stat.meanintnullablee_vsini[0/59]? Uncertainty in <vsini>km/sstat.error;phys.veloc.rotatintnullableRV[-14/128]? Radial velocitykm/sphys.veloc;pos.heliocentricfloatnullablee_RV[1.5/75]? Standard deviation for RVkm/sstat.errorfloatnullableo_RV[4/10]? Number of lines measuredmeta.numberintnullableQ[-1/-0.6] Q=(U-B)-0.72(B-V) reddening free indexmagphot.color.reddFreefloatE(B-V)[0.19/1.2] The E(B-V) color excess (1)magphot.color.excessfloatVMag[-6/-2.1] Absolute V-band magnitude (2)magphot.mag;em.opt.VfloatDist[1/13.1] Photometrically derived heliocentric distancekpcpos.distance;pos.heliocentricfloatSpTSpectral type (from Reed 2003, cat. V/125)src.spTypecharCl[CAF] Membership classification: (C)luster, (A)ssociation, or (F)ield (as described in Section 3.1)meta.code.class;src.classcharMmMembership in an association or clustermeta.id.parentcharSBBinarity (SB1/2) (3)meta.code.multipcharSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPosition from ALS (Reed 2005, V/125) (right ascension part)degpos.eq.ra;meta.main_DEPosition from ALS (Reed 2005, V/125) (declination part)degpos.eq.dec;meta.main