J/AJ/136/1645ivo://CDS.VizieR/J/AJ/136/1645doi:10.26093/cds/vizier.51361645CDSVivas A.K.Jaffe Y.L.Zinn R.Winnick R.Duffau S.Mateu C.2017-11-28T13:21:12Z2011-05-23T15:24:46ZCDS support team

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

cds-question@unistra.frvariable-starsradial-velocitymetallicityUsing a sample of 43 bright (V<16.1, distance <13kpc) RR Lyrae stars (RRLs) from the QUasar Equatorial Survey with spectroscopic radial velocities and metallicities, we find that several separate halo substructures contribute to the Virgo overdensity (VOD). While there is little evidence of a halo substructure in the spatial distribution of these stars, their distribution in radial velocity reveals two moving groups. These results are reinforced when the sample is combined with a sample of blue horizontal branch stars that were identified in the Sloan Digital Sky Survey, and the combined sample provides evidence for one additional moving group.2008AJ....136.1645Vhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/136/1645CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/127/1158 : QUEST RR Lyrae Survey first catalog (Vivas+, 2004)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/136/1645https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/136/1645http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/136/1645https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/136/1645https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/136/1645http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/136/1645GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/136/1645/table3 (Position, distance, velocity and metallicity of the 43 RRLs)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/136/1645/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/136/1645/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/136/1645/table3?GETtext/xml+votable180.050000true169.62516-0.764498060.0055555555555555566/25559 25586 25591 25592 25851 25854 25914 25991 26017 26022 26024 26142 26157 26162 26163 26165 26166 26171 26172 26174 26175 26182 26190 26193 26216 26217 26241 26247 26261 26272 26273 26274 26276 26280 26282 26941 26955 26958 26979https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/136/1645?format=asciiOpticaldefaultJ/AJ/136/1645/table3Position, distance, velocity and metallicity of the 43 RRLssigfit? Error in fit of radial velocity curvekm/sstat.errorintnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[VZA2004]QUEST Identification numbermeta.id;meta.mainintprimaryRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainVmagExtinction corrected mean V band magnitudemagphot.mag;em.opt.VfloatTypeType of RR Lyrae starmeta.code;src.varcharPerPerioddtime.perioddoubleHJD0Heliocentric Julian Date at maximum lightdtime.epochdoubleDistDistance from the Sunkpcpos.distance;pos.heliocentricfloatNspNumber of spectra availablemeta.numberintNfitNumber of spectra used to fit radial velocity curvemeta.numberintVgammaSystemic velocitykm/sphys.velocinte_VgammaThe 1{sigma} error in Vgammakm/sstat.errorintVgsrVelocity in galactic rest framekm/sphys.veloc;pos.galacticint[Fe/H]? Metallicitylog(Sun)phys.abund.ZfloatnullableQUESTDisplay results from ivas et al. 2004, Cat. J/AJ/127/1158meta.ref.urlcharSimbadSimbad column added by the CDScharJ/AJ/136/1645/table2Individual observations of the sample of RRLsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[VZA2004]QUEST Identification numbermeta.id;meta.mainintJDJulian Date of observationdtime.epochdoubleTexpExposure timestime.duration;obs.exposureintTelTelescope used to make observationinstr.setup;obscharPhasePulsation phase of observationtime.phasefloatHRVHeliocentric radial velocitykm/sspect.dopplerVeloc;pos.heliocentricinte_HRVThe 1{sigma} error in HRVkm/sstat.errorint[Fe/H]? Metallicitylog(Sun)phys.abund.Zfloatnullableu_[Fe/H]Uncertainty flag on [Fe/H] (1)meta.code.error;phys.abund.Fechar