J/MNRAS/352/285ivo://CDS.VizieR/J/MNRAS/352/285doi:10.26093/cds/vizier.73520285CDSClewley L.Warren S.J.Hewett P.C.Norris J.E.Evans N.W.2024-06-29T20:15:13Z2005-04-17T21:22:19ZCDS support team

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

cds-question@unistra.frhorizontal-branch-starsccd-photometryvisible-astronomybroad-band-photometryradial-velocitystellar-distanceThis is the second in a series of papers presenting a new calculation of the mass of the Galaxy based on radial velocities and distances for a sample of faint 16<B<21.3 field blue horizontal-branch (BHB) stars. We present accurate BV CCD photometry and spectra for 142 candidate A-type stars selected from ubjr photometry of UK Schmidt telescope plates in six high-Galactic-latitude fields. Classification of these candidates produces a sample of 60 BHB stars at distances of 11-52kpc from the Sun (mean 28kpc), with heliocentric line-of-sight velocities accurate to 15km/s, and distance errors <10 per cent. We provide a summary table listing coordinates and velocities of these stars.2004MNRAS.352..285Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/352/285CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+AS/109/171 : Blue horizontal branch stars catalog (Flynn+, 1995)J/AJ/108/1722 : Blue horizontal branch stars (Kinman+ 1994)J/AJ/127/899 : Blue HB stars in SDSS (Sirko+, 2004)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/352/285https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/352/285http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/352/285https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/352/285https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/352/285http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/352/285GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/352/285/table4 (Photometric catalogue of A-type stars selected from six UKST fields)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/352/285/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/352/285/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/352/285/table4?GETtext/xml+votable180.050000true16.3675-26.23355280.005555555555555556Cone search capability for table J/MNRAS/352/285/table7 (Photometric data for the blue horizontal-branch star candidates, corrected for extinction)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/352/285/table7?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/352/285/table7?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/352/285/table7?GETtext/xml+votable180.050000true15.6841667-26.4630.0055555555555555565/0 2 4161 4164 4437 4439 6529-6531 6534 6539-6540 6718-6719 6804-6805 6848 8634-8635 8638 8939 8942 9214 12115 12118 12120-12121 12123 12125-12126 6/6 16469 16640-16641 16643 16649 16652-16654 16660 16664 17732-17733 17735 17744-17746 17752-17753 17755 17780 17782-17783 23210 25437-25439 25461 26114-26115 26142 26144-26145 26147 26149-26151 26164 26168 26170 26862-26863 26867 26870 27204-27205 27207 27213 27224-27225 27227 27229-27231 27252 27254 27400-27401 34487 34492-34493 34509 34532 34534 34544 34546-34548 34550-34551 34556 35747-35750 35752 35754 35760 35762 35774 35905 35909-35911 35920 36860-36862 48437 48454-48455 48457 48459 48466-48467 48478 48489 48496-48498 48509-48510 48581 48592-48593https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/352/285?format=asciiOpticaldefaultJ/MNRAS/352/285/table4Photometric catalogue of A-type stars selected from six UKST fieldsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.intSpindicates that spectroscopic data is available in table11char[CWH2004]NamecharprimaryRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainbjmagbj magnitude (1)magfloatu-bju-bj colour index (1)magfloatbj-orbj-or colour index (1)magfloate_u-bjrms uncertainty on u-bjmagfloate_bj-orrms uncertainty on bj-ormagfloatJ/MNRAS/352/285/table7Photometric data for the blue horizontal-branch star candidates, corrected for extinctionrecnoRecord number assigned by the VizieR team. Should Not be used for identification.intSpindicates that spectroscopic data is available in table11char[CWH2004]Name (1)charprimarym_[CWH2004][qv] Multiplicity index on [CWH2004]charRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainVmagV magnitudemagfloat(B-V)0Dereddend B-V colour indexmagfloate_Vmagrms uncertainty on Vmagmagfloate_(B-V)0rms uncertainty on (B-V)0magfloatE(B-V)Reddening in B-VmagfloatNNumber of photometric nights (2)intJ/MNRAS/352/285/table11Spectroscopic data for the horizontal-branch star candidatesthetaOrientation of the semi-major axis measured anti-clockwise from the b-axis (2)radfloat[Fe/H]? Measured metallicitylog(Sun)floatnullablee_[Fe/H]? rms uncertainty on [Fe/H]log(Sun)floatnullableHRVHeliocentric radial velocitykm/sfloate_HRVrms uncertainty on HRVkm/sfloatDistHeliocentric distancekpcfloate_Distrms uncertainty on DistkpcfloatClassClassification as BHB (blue horizontal-branch) or A/BS (field blue straggler)charrecnoRecord number assigned by the VizieR team. Should Not be used for identification.int[CWH2004]Namecharn_[CWH2004][Nbv] Multiplicity index on [CWH2004]charD0.15(gd)D0.15 parameter (1)0.1nmfloate_D0.15(gd)rms uncertainty on D0.150.1nmfloatb(gd)b parameter (1)0.1nmfloatc(gd)c parameter (1)0.1nmfloatASemi-major axes of the error ellipse in the b-c plane (2)0.1nmfloatBSemi-minor axes of the error ellipse in the b-c plane (2)0.1nmfloat