J/other/RMxAA/60ivo://CDS.VizieR/J/other/RMxAA/60.381CDSArellano Ferro A.Perez Parra C.E.Yepez M.A.Bustos Fierro I.H.,Prudil Z.Zerpa Guillen L.J.2025-02-24T13:54:23Z2024-10-23T07:46:56ZCDS support team

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

cds-question@unistra.frglobular-star-clustersvariable-starsphotometryvisible-astronomyWe report VI CCD photometry of the globular cluster cluster NGC 1851. We aim to study the membership of the variable stars detected in the field of the cluster as listed in the Catalogue of Variable stars in Globular Clusters (CVSGC; Clement et al., 2001AJ....122.2587C, Cat. V/150) and reported by the Gaia mission. We cross match the two sets of variables to produce light curves that lead to the estimation of physical parameters. The resulting colour-magnitude diagram (CMD), free of likely field stars, enables to confirm the position of the variables, their type and evolutionary stage. We provide new estimations of the period using data acquired on a long time- base. The Fourier decomposition of cluster member RR Lyrae light curves lead to a mean metallicity and distance of [Fe/H]_ZW_=-1.35+/-0.22dex and 11.9+/-0.6kpc. The variability and membership of stars reported by Gaia-DR3 as variables in the field of the cluster is discussed.2024RMxAA..60..381Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/RMxAA/60.381CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/488/3024 : Globular clusters members with Gaia DR2J/MNRAS/505/5978 : Gaia EDR3 view on Galactic globular clustershttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/RMxAA/60.381https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/RMxAA/60.381http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/RMxAA/60.381https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/other/RMxAA/60.381https://vizier.iucaa.in/viz-bin/votable?-source=J/other/RMxAA/60.381http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/other/RMxAA/60.381GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/other/RMxAA/60.381/table4 (General data of variables in the field of NGC 18511)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/RMxAA/60.381/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/other/RMxAA/60.381/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/RMxAA/60.381/table4?GETtext/xml+votable180.050000true78.6205833-40.04902780.0055555555555555566/34242-34243https://cdsarc.cds.unistra.fr/viz-bin/moc/J/other/RMxAA/60.381?format=asciiOpticaldefaultJ/other/RMxAA/60.381/table4General data of variables in the field of NGC 18511HJDmax? Maximum brightness HJD (HJD-2450000)dtime.epoch;stat.maxdoublenullableMembB+CMembership status found in this work from the method of Bustos Fierro & Calderon (2019MNRAS.488.3024B, Cat. J/MNRAS/488/3024) (1)meta.code.membercharMembV+B? Membership probability assigned by Vasiliev & Baumgardt (2021MNRAS.505.5978V, Cat. J/MNRAS/505/5978)stat.probabilityfloatnullableMemb? Membership code (2)meta.code.membercharRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainStatus[New NewG GNC] Status (3)meta.codecharGaiaDR3? Gaia DR3 identifier for variables in Gaia-DR3meta.idnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLCShow the light curvesmeta.ref.urlcharVNameVariable name, VNNmeta.id;meta.maincharONameOther name, for variables identifier in Gaiameta.idcharVTypeVariable typemeta.code;src.varchar<Vmag>? Intensity weighted mean V magnitudemagphot.mag;em.opt.Vfloatnullablen_<Vmag>[*] V magnitude weighted mean in <Vmag>meta.notechar<Imag>? Intensity weighted mean I magnitudemagphot.mag;em.opt.Ifloatnullablen_<Imag>[*] I magnitude weighted mean in <Imag>meta.notecharAV? Amplitude of variation in V bandmagarith.rate;phot.magfloatnullableAI? Amplitude of variation in I bandmagarith.rate;phot.magfloatnullablePer? Perioddtime.perioddoublenullableJ/other/RMxAA/60.381/table2VI photometry of 62 variables in the field of NGC 6558HJDHeliocentric Julian datedtime.epochdoubleindexedmagstStandard magnitudemagphot.magfloatmaginstInstrumental magnitudemagphot.magfloate_maginstError on the magnitudemagstat.errorfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintVNameVariable name, VNNmeta.id;meta.maincharFilter[VI] Observation filterobs.param;obschar