J/AJ/153/179ivo://CDS.VizieR/J/AJ/153/179doi:10.26093/cds/vizier.51530179CDSMinniti D.Dekany I.Majaess D.Palma T.Pullen J.Rejkuba M.,Alonso-Garcia J.Catelan M.Contreras Ramos R.Gonzalez O.A.Hempel M.,Irwin M.Lucas P.W.Saito R.K.Tissera P.Valenti E.Zoccali M.2024-08-14T20:12:35Z2017-08-07T12:37:44ZCDS support team

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

cds-question@unistra.frsurveysmilky-way-galaxyvariable-starsinfrared-photometryextinctionmetallicitystellar-distanceDeep near-IR images from the VISTA Variables in the Via Lactea (VVV) Survey were used to search for RR Lyrae stars in the Southern Galactic plane. A sizable sample of 404 RR Lyrae of type ab stars was identified across a thin slice of the fourth Galactic quadrant (295{deg}<l<350{deg}, -2.24{deg}<b<-1.05{deg}). The sample's distance distribution exhibits a maximum density that occurs at the bulge tangent point, which implies that this primarily Oosterhoff type I population of RRab stars does not trace the bar delineated by their red clump counterparts. The bulge RR Lyrae population does not extend beyond l~340{deg}, and the sample's spatial distribution presents evidence of density enhancements and substructure that warrants further investigation. Indeed, the sample may be employed to evaluate Galactic evolution models, and is particularly lucrative since half of the discovered RR Lyrae are within reach of Gaia astrometric observations.2017AJ....153..179Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/153/179CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIII/176 : RR Lyrae Metallicities (Layden 1994)J/A+A/591/A145 : VVV Survey outer bulge RRab stars (Gran+, 2016)J/MNRAS/446/2251 : Southern Catalina Survey type-ab RR Lyrae (Torrealba+, 2015)J/AJ/149/99 : VVV globulars. I. (Alonso-Garcia+, 2015)J/ApJ/810/L20 : VISTA KS photometry of EWS 2012-BLG-548 (Minniti+, 2015)J/A+A/566/A120 : 3D dust extinction in Milky Way bulge (Schultheis+, 2014)J/AJ/146/21 : LINEAR. II. Catalog of RR Lyrae stars (Sesar+, 2013)J/A+A/550/A42 : Extinction map towards the Galactic bulge (Chen+, 2013)J/MNRAS/427/3374 : QUEST RR Lyrae Survey III. (Mateu+, 2012)J/ApJ/724/799 : RR Lyrae variables in M33. II. (Yang+, 2010)J/A+A/502/505 : Ks photometry of LMC RR Lyrae (Borissova+, 2009)J/ApJ/678/865 : LONEOS-I RR Lyrae stars (Miceli+, 2008)J/ApJ/678/851 : RR Lyrae survey in the Galactic Halo (Keller+, 2008)J/AJ/135/631 : Reddenings for MACHO bulge RR0 Lyrae stars (Kunder+, 2008)J/MNRAS/384/1583 : JHK light curves of RR Lyr (Sollima+, 2008)J/AJ/132/714 : QUEST RR Lyrae survey. II. Halo overdensities (Vivas+, 2006)J/ApJ/542/257 : MACHO LMC first-overtone RR Lyrae (Alcock+, 2000)J/AJ/108/1016 : Kinematics of local RR lyrae stars. I. (Layden, 1994)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/153/179https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/153/179http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/153/179https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/153/179https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/153/179http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/153/179GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/153/179/variables (RR Lyrae photometric observations (table1), and measured stellar parameters (table2))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/153/179/variables?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/153/179/variables?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/153/179/variables?GETtext/xml+votable180.050000true177.9892083-64.01666670.0055555555555555565/10398 10449 10538 10596 6/37892 41467 41470-41471 41583 41596-41597 41629-41631 41645 41647 41649 41652 41654 41656 41667-41670 41673-41674 41680 41742-41743 41751 41753-41758 41761-41766 41794-41795 41800-41801 41808-41810 41812-41813 42151 42156-42157 42162-42163 42165-42169 42172 42190-42191 42201-42206 42208-42210 42212 42346-42347 42350-42351 42362 42371 42374-42377 42380-42381 42388-42389 42432-42433 42436-42437 42448 43009-43012 430187.952274030004205e-20 1.0188844282367877e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/153/179?format=asciiInfrareddefaultJ/AJ/153/179/variablesRR Lyrae photometric observations (table1), and measured stellar parameters (table2)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStar[2/584] RR Lyrae identifier (VVV-RRL-)meta.id;meta.mainintRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainGLON[296.473/350.06] Galactic longitudedegpos.galactic.lonGLAT[-2.245/-1.05] Galactic latitudedegpos.galactic.latfloatKsmag[11.74/16.64] Apparent K_s_ band magnitudemagphot.mag;em.IR.KfloatJ-Ks[0.33/2.87]? The (J-K_s_) color indexmagphot.color;em.IR.J;em.IR.KfloatnullableH-Ks[-0.29/0.98]? The (H-K_s_) color indexmagphot.color;em.IR.H;em.IR.KfloatnullablePer[0.35/0.96] Perioddtime.perioddoubleAmp[0.06/0.55] Amplitudemagphot.magfloatSimbadSimbad column added by the CDSmeta.ref.urlcharE(J-Ks)[0/2.72] The (J-K_s_) color excessmagphot.color.excessfloatAKs[0/1.44] The K_s_ band extinctionmagphys.absorptionfloatDist[0/18.43] Distancekpcpos.distance;pos.heliocentricfloat[Fe/H][-2.7/-0.3] Metallicitylog(Sun)phys.abund.Zfloat