J/A+A/566/A118ivo://CDS.VizieR/J/A+A/566/A118doi:10.26093/cds/vizier.35660118CDSDuffau S.Vivas A.K.Zinn R.Mendez R.A.Ruiz M.T.2017-10-18T08:25:03Z2014-06-24T10:44:55ZCDS support team

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

cds-question@unistra.frhalo-starsvariable-starsradial-velocitymetallicityTo explore the complex halo substructure that has been reported in the direction of the Virgo constellation, radial velocities and metallicities have been measured for 82 RR Lyrae stars (RRLS) that were identified by the QUEST survey. These stars are distributed over 90 sq. deg. of the sky, and lie from 4 to 23kpc from the Sun. Using an algorithm for finding groups in phase space and modeling the smooth halo component in the region, we identified the 5 most significant RRLS groups, some of which were previously known or suspected. We have examined the SEKBO and the Catalina catalog of RRLS (with available spectroscopic measurements), as well as the bright QUEST RRLS sample, the catalog of Red Giant stars from the Spaghetti survey, and three recent catalogs of blue horizontal branch (BHB) stars, for stars that may be related to the QUEST RRLS groups.2014A&A...566A.118Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/566/A118CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/691/306 : Virgo stream RR Lyrae candidates photometry (Prior+, 2009)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/566/A118https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/566/A118http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/566/A118https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/566/A118https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/566/A118http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/566/A118GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/566/A118/table6 (Positions, light curve parameters, systemic velocities and their errors, metallicities for the target stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/566/A118/table6?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/566/A118/table6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/566/A118/table6?GETtext/xml+votable180.050000true180.1996650.769750.005555555555555556Cone search capability for table J/A+A/566/A118/table9 (Data on the individual members of the kinematical groups)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/566/A118/table9?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/566/A118/table9?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/566/A118/table9?GETtext/xml+votable180.050000true180.40403694-3.557913890.0055555555555555565/6396 6543 6/8279 25390 25559 25563 25565 25567 25575 25581 25588 25590-25593 25599 25854 26011 26092 26142 26157 26159 26162-26163 26165-26167 26170-26171 26182 26186 26194-26195 26200-26201 26208-26209 26211 26216-26217 26241-26242 26246-26247 26249 26252 26255 26258-26259 26261 26264-26266 26270 26272-26274 26276 26278-26280 26282 26306 26309-26310 26320 26328 26366 26370 26979 26996 27095 27133 27648 27652 27850 28046 28536 45051https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/566/A118?format=asciiOpticaldefaultJ/A+A/566/A118/table6Positions, light curve parameters, systemic velocities and their errors, metallicities for the target starsSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarStar designation (G1)meta.id;meta.maincharprimaryNNumber of observations of this starmeta.numberintnullableRAJ2000Right Ascension in degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in degrees (J2000)degpos.eq.dec;meta.mainVmag0Mean extinction-corrected V magnitudemagphot.mag;em.opt.VfloatPeriodPeriod in daysdtime.perioddoubleHJD0Heliocentric Julian date at maximum light in days (HJD-2450000)dtime.epochdoubleTypeRR Lyrae type (Bailey type: ab or c)meta.code;src.varchard[4/23] Heliocentric distancekpcpos.distance;pos.heliocentricfloatNfit? Number observations used in radial velocity curve fitmeta.number;spect.dopplerVeloc;obsintnullableVgamma? Systemic velocity V_{gamma}_km/sphys.veloc;pos.heliocentricintnullablee_Vgamma? Final error in the systemic velocitykm/sstat.errorintnullablesigfit? rms of the fitting of the radial velocity curve {sigma}_fit_km/sstat.errorintnullableVgsr? Radial velocity in the galactic standard of rest V_gsr_km/sspect.dopplerVeloc;pos.galacticintnullable[Fe/H]? Mean metallicitylog(Sun)phys.abund.Z;stat.meanfloatnullableJ/A+A/566/A118/table5Data on the individual observations of the target RR Lyrae starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarStar designation (G1)meta.id;meta.maincharHJDHeliocentric Julian Date of the observation (HJD-2450000)dtime.epochdoubleExpExposure timestime.duration;obs.exposureintCodeTelescope/setup code, following the definitions of Table 1meta.id;instrcharPhase[0/1] Mean phase of the observationtime.phasefloatHRV? Heliocentric radial velocitykm/sspect.dopplerVeloc;pos.heliocentricintnullablee_HRV? Error on Heliocentric radial velocitykm/sstat.errorintnullable[Fe/H][-2.6/0]? Metallicitylog(Sun)phys.abund.ZfloatnullableJ/A+A/566/A118/table1Telescopes and instrumentsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObsObservatory (CTIO=Cerro Tololo, KPNO=Kitt Peak, LCO=Las Campanas, La Silla)meta.id;instr.obstycharTelTelescopemeta.id;instr.telcharInstInstrument namemeta.id;instrcharCodeInstrument codemeta.id;instrcharGratGrating (lines/mm)mm**-1meta.id;instrintlam0Lower value of spectral range {lambda}_min_0.1nminstr.bandwidthintlam1Upper value of spectral range {lambda}_max_0.1nminstr.bandwidthintResResolution ({AA})0.1nmspect.resolutionfloatDatesObservation date(s)time.epoch;obscharJ/A+A/566/A118/table8*Properties of the Groups of RRLs in the Virgo region detected with {epsilon}=0.046recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGroupKinematical group designation (A to H)meta.id;meta.maincharprimaryN9Number of surveys/tracers of this group in table9meta.numberintnullableColColor/symbol in Fig. 11 of the papermeta.notecharNNumber of members of the indicated groupmeta.numberint<Vgsr>Mean galactic standard of rest velocity V_gsr_km/sstat.fit.paramintsigVgsrSGR velocity dispersion {sigma}V_gsr_km/sphys.veloc.dispersionfloat<d>[5/20] Mean distancekpcstat.fit.paramfloatsigd[0.2/1.2] Distance dispersion along the line of sight {sigma}_d_kpcstat.fit.paramfloatsig3d[0.8/1.6] 3d dispersion {sigma}3d (1)kpcstat.fit.paramfloatP(Vgsr)Percentile 95 for that group in V_gsr_stat.fit.paramfloatP(d)Percentile 95 for that group in <d>stat.fit.paramfloatP(sigd)Percentile 95 for that group in {sigma}_d_stat.fit.paramfloatP(sig3d)Percentile 95 for that group in {sigma}3dstat.fit.paramfloatJ/A+A/566/A118/table9Data on the individual members of the kinematical groupsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGroupLetter identifying the group, following naming convention of Table 8 of the papermeta.notecharSurveySurvey designation (1)meta.idcharTracerTracer designation (2)src.classcharID? Identification name following the corresponding survey convention (when available)meta.id;meta.maincharRAJ2000Right Ascension in degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in degrees (J2000)degpos.eq.dec;meta.mainVgsrRadial velocity in the galactic standard of restkm/sspect.dopplerVeloc;pos.galacticintdHeliocentric distancekpcpos.distance;pos.heliocentricintRefReferencesmeta.refchar