J/A+A/335/510ivo://CDS.VizieR/J/A+A/335/510doi:10.26093/cds/vizier.33350510CDSMoehler S.Landsman W.Napiwotzki R.2018-01-04T08:22:57Z2015-12-17T16:03:00ZCDS support team

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

cds-question@unistra.frglobular-star-clustersgiant-starsspectroscopyWe have obtained medium-resolution spectra of seven UV-bright stars discovered on images of four southern globular clusters obtained with the Ultraviolet Imaging Telescope (UIT). Effective temperatures, surface gravities and helium abundances are derived from LTE and non-LTE model atmosphere fits. Three of the stars have sdO spectra, including M4-Y453 (T_eff_=58800K, logg=5.15), NGC 6723-III60 (T_eff_=40600K, logg=4.46) and NGC 6752-B2004 (T_eff_=37000K, logg=5.25). All seven stars lie along either post-extended horizontal branch (EHB) or post-early AGB evolutionary tracks. The post-early AGB stars show solar helium abundances, while the post-EHB stars are helium deficient, similar to their EHB progenitors. Based on observations collected at the European Southern Observatory (ESO No 57.E-0101)1998A&A...335..510Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/335/510CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/335/510https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/335/510http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/335/510https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/335/510https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/335/510http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/335/510GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/335/510/stars (List of stars with atmospheric parameters and velocities)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/335/510/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/335/510/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/335/510/stars?GETtext/xml+votable180.050000true138.0931667-64.87702780.0055555555555555566/37294 42955 47168 47825https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/335/510?format=asciiOpticaldefaultJ/A+A/335/510/starsList of stars with atmospheric parameters and velocitiesSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterGlobular Cluster namemeta.id.parentcharStarStar namemeta.id;meta.maincharRAJ2000Right Ascension J2000pos.eq.ra;meta.mainDEJ2000Declination J2000pos.eq.dec;meta.mainTeffEffective temperatureKphys.temperature.effectiveintlogglogarithmic surface gravitylog(cm.s**-2)phys.gravityfloatlogHe/Hlogarithmic helium abundance by particle number relative to hydrogenmeta.idfloatHRVHeliocentric radial velocitykm/sspect.dopplerVeloc;pos.heliocentricintStatusEvolutionary statusmeta.codecharSpShow the spectrummeta.ref.urlcharJ/A+A/335/510/spectraSpectra of starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambdaWavelengthnmem.wldoubleC2946? Normalized spectrum for NGC2808-C2946meta.notedoublenullableC2947? Normalized spectrum for NGC2808-C2947meta.notedoublenullableC4594? Normalized spectrum for NGC2808-C4594meta.notedoublenullableY453? Normalized spectrum for NGC6121-Y453meta.notedoublenullableIII-60? Normalized spectrum for NGC6723-III-60meta.notedoublenullableIV-9? Normalized spectrum for NGC6723-IV-9meta.notedoublenullableB2004? Normalized spectrum for NGC6752-B2004meta.notedoublenullable