QUEST RR Lyrae Survey III. Low Galactic latitude

QUEST RR Lyrae Survey III. Low Galactic latitudeJ/MNRAS/427/3374ivo://CDS.VizieR/J/MNRAS/427/3374doi:10.26093/cds/vizier.74273374CDSMateu C.Vivas A.K.Downes J.J.Briceno C.Zinn R.Cruz-Diaz G.2024-07-19T20:17:16Z2013-11-20T15:55:59ZCDS support team

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

cds-question@unistra.frvariable-starsastrometrystellar-distancephotometryWe present results for the QUEST RR Lyrae Survey at low Galactic latitude, conducted entirely with observations obtained with the QUEST mosaic camera and the 1.0/1.5-m Jurgen Stock Schmidt telescope at the National Observatory of Venezuela. The survey spans an area of 476deg^2^ on the sky, with multi-epoch observations in the V, R and I photometric bands for 6.5x10^6^ stars in the Galactic latitude range -30{deg}<=b<=+25{deg}, in a direction close to the Galactic anticentre 190{deg}<=l<=230{deg}. The variability survey has a typical number of 30 observations per object in V and I and ~25 in R, with up to ~120-150 epochs in V and I and up to ~100 in R in the best sampled regions. The completeness magnitudes of the survey are V=R=18.5mag, and I=18.0mag. We identified 211 RR Lyrae stars, 160 bona fide stars of type ab and 51 candidates of type c, ours being the first deep RR Lyrae survey conducted at low Galactic latitude, in the Galactic disc. The completeness of the RR Lyrae survey was estimated in >~95 and ~85 per cent for RRab and RRc stars, respectively. Photometric metallicities were computed based on the light curves and individual extinctions calculated from minimum light colours for each RRab star. Distances were obtained with typical errors ~7 per cent. The RR Lyrae survey simultaneously spans a large range of heliocentric distances 0.5<=R_hel_(kpc)<=40 and heights above the plane -15<=z(kpc)<=+20, with well-known completeness across the survey area, making it an ideal set for studying the structure of the Galactic thick disc.2012MNRAS.427.3374Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/427/3374CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/296 : QUEST1 variability survey (QVS). III. (Rengstorf+, 2009)J/AJ/127/1158 : QUEST RR Lyrae Survey first catalog (Vivas+, 2004)J/AJ/132/714 : QUEST RR Lyrae survey. II. Halo overdensities (Vivas+, 2006)J/AJ/136/1645 : Spectroscopy of bright QUEST RR Lyrae stars (Vivas+, 2008)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/427/3374https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/427/3374http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/427/3374https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/427/3374https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/427/3374http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/427/3374GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/427/3374/RRab (RRab stars: light-curve parameters (table 6), distances and metallicities (table 8))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/427/3374/RRab?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/427/3374/RRab?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/427/3374/RRab?GETtext/xml+votable180.050000true60.9357219-1.49851190.005555555555555556Cone search capability for table J/MNRAS/427/3374/table7 (Light curve parameters for RRc stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/427/3374/table7?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/427/3374/table7?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/427/3374/table7?GETtext/xml+votable180.050000true74.1517869-3.74061390.005555555555555556Cone search capability for table J/MNRAS/427/3374/table2 (Magnitudes for second-order photometric standards)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/427/3374/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/427/3374/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/427/3374/table2?GETtext/xml+votable180.050000true82.4017489-2.041920.0055555555555555565/5460 5693 5718 6/21437 21469 21478 21484-21485 21488-21489 21492 21719 21721 21724-21725 21727 21738-21739 21742-21744 21746-21748 21750 21754 21756 21773 21779 21783 21787-21789 21791 21795-21796 21799 21801 21804 21812-21813 21816-21818 21820 21823 21826 21832 21834-21835 21839 21845 21849 21856 21859 21864-21866 21891 21893 21896 21898-21899 21907-21908 21910 21924 21929 22037 22044 22054-22055 22059 22062 22064 22066-22067 22070 22081-22082 22085 22144 22147-22150 22152 22154 22156 22759 22765 22783 22804 22807 22812-22813 22815 22818-22819 22821 22823 22838 22848-22849 22851 22853-22854 22856 22858-22859 22861 22867 22881 22883 22886-22887 22889 22892-22894 22896 22900 22905-22906 22908 22913 22919 22931 22933-22934 22941 22947 22949-22950 22952-22953 22961 22967 22973 22979 22981-22984 22987 22997 22999 23010 23012 23014 23016 23019-23021 23105 23107 23118 23125 23555 23565-23566 23585 23587 23591-23592 23600 23680 40930 40935 40942-40943 40953 40959https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/427/3374?format=asciiOpticaldefaultJ/MNRAS/427/3374/RRabRRab stars: light-curve parameters (table 6), distances and metallicities (table 8)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[3/1158] Star sequential numbermeta.recordintprimaryRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainNV[0/128] Number of observation in V bandmeta.numberintNR[0/88] Number of observation in R bandmeta.numberintNI[0/119] Number of observation in I bandmeta.numberintPer[0.2/0.9] Perioddtime.perioddoubleVamp? Amplitude in V bandmagphot.mag;em.opt.VfloatnullableRamp? Amplitude in R bandmagphot.mag;em.opt.RfloatnullableIamp? Amplitude in I bandmagphot.mag;em.opt.IfloatnullableT0Time of maximum light (HJD-2450000)dtime.epochdouble<V>? Mean V magnitudemagphot.mag;em.opt.Vfloatnullablee_<V>? rms uncertainty on <V>magstat.error;pos.cartesian.yfloatnullable<R>? Mean R magnitudemagphot.mag;em.opt.Rfloatnullablee_<R>? rms uncertainty on <R>magstat.errorfloatnullable? Mean I magnitudemagphot.mag;em.opt.Ifloatnullablee_? rms uncertainty on magstat.errorfloatnullableE(B-V)B-V colour excessmagphot.color.excessfloatnullable[Fe/H]Metallicitylog(Sun)phys.abund.Zfloatnullablee_[Fe/H]rms uncertainty on [Fe/H]log(Sun)stat.error;phys.abund.FefloatnullableRhHeliocentric distancekpcpos.distance;pos.heliocentricfloatnullablee_Rhrms uncertainty on Rhkpcstat.errorfloatnullablezHeight above the planekpcpos.cartesian.z;pos.galacticfloatnullablee_zrms uncertainty on zkpcstat.error;src.redshiftfloatnullableRgRadial distance projected on the Galactic planekpcpos.distance;pos.galactocentricfloatnullablee_Rgrms uncertainty on Rkpcstat.errorfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlcharnullable

J/MNRAS/427/3374/table7Light curve parameters for RRc starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[3/1158] Star sequential numbermeta.recordintRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainNV[0/128] Number of observation in V bandmeta.numberintNR[0/88] Number of observation in R bandmeta.numberintNI[0/119] Number of observation in I bandmeta.numberintPer[0.2/0.9] Perioddtime.perioddoubleVamp? Amplitude in V bandmagphot.mag;em.opt.VfloatnullableRamp? Amplitude in R bandmagphot.mag;em.opt.RfloatnullableIamp? Amplitude in I bandmagphot.mag;em.opt.IfloatnullableT0Time of maximum light (HJD-2450000)dtime.epochdouble<V>? Mean V magnitudemagphot.mag;em.opt.Vfloatnullablee_<V>? rms uncertainty on <V>magstat.error;pos.cartesian.yfloatnullable<R>? Mean R magnitudemagphot.mag;em.opt.Rfloatnullablee_<R>? rms uncertainty on <R>magstat.errorfloatnullable? Mean I magnitudemagphot.mag;em.opt.Ifloatnullablee_? rms uncertainty on magstat.errorfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlchar

J/MNRAS/427/3374/table2Magnitudes for second-order photometric standardsImagI magnitudemagphot.mag;em.opt.IfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintssID[4000/5876] Star designation (ssNNNN)meta.id;meta.mainintRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainVmagV magnitudemagphot.mag;em.opt.Vfloate_Vmagrms uncertainty on Vmagmagstat.error;phot.mag;em.opt.VfloatRmagR magnitudemagphot.mag;em.opt.Rfloate_Rmagrms uncertainty on Rmagmagstat.error;phot.mag;em.opt.Rfloate_Imagrms uncertainty on Imagmagstat.error;phot.mag;em.opt.Ifloat