J/other/RMxAA/54ivo://CDS.VizieR/J/other/RMxAA/54.15CDSYepez M.A.Arellano Ferro A.Muneer S.Giridhar S.2021-08-26T06:02:13Z2018-05-22T06:55:00ZCDS support team

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

cds-question@unistra.frglobular-star-clustersvariable-starsccd-photometryWe report an analysis of new V and I CCD time-series photometry of the globular cluster NGC 6934. Through the Fourier decomposition of the RR Lyrae light curves, the mean values of [Fe/H] and the distance of the cluster were estimated, we found; [Fe/H]_UVES_=-1.48+/-0.14 and d=16.03+/-0.42kpc, and [Fe/H]_UVES_=-1.43+/-0.11 and d=15.91+/-0.39kpc, from the calibrations of RRab and RRc stars respectively. Independent distance estimations from SX Phe and SR stars are also discussed. Individual absolute magnitudes, radii and masses are also reported for RR Lyrae stars. We found 12 new variables: 4 RRab, 3 SX Phe, 2 W Virginis (CW) and 3 semi-regular (SR). The inter-mode or "either-or" region in the instability strip is shared by the RRab and RRc stars. This characteristic, observed only in some OoI clusters and never seen in an OoII, is discussed in terms of mass distribution in the ZAHB.2018RMxAA..54...15Yhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/RMxAA/54.15CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/RMxAA/54.15https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/RMxAA/54.15http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/RMxAA/54.15https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/other/RMxAA/54.15https://vizier.iucaa.in/viz-bin/votable?-source=J/other/RMxAA/54.15http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/other/RMxAA/54.15GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/other/RMxAA/54.15/table2 (General data of confirmed variables in NGC 6934)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/RMxAA/54.15/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/other/RMxAA/54.15/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/RMxAA/54.15/table2?GETtext/xml+votable180.050000true308.5357.3941670.0055555555555555566/124251.9821045660507152e-19 3.852589004194616e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/other/RMxAA/54.15?format=asciidefaultJ/other/RMxAA/54.15/table2General data of confirmed variables in NGC 6934SimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintVNameVariable name, VNNmeta.id;meta.maincharn_VName[a] a for newly found in this workmeta.notecharTypeVariable typesrc.classchar<V>? Intensity weighted V magnitudemagphot.mag;em.opt.Vfloatnullable<I>? Intensity weighted I magnitudemagphot.mag;em.opt.IfloatnullableAV? V amplitudemagsrc.var.amplitudefloatnullableAI? I amplitudemagsrc.var.amplitudefloatnullableu_AIUncertainty flag on AImeta.code.errorcharl_PKOS01[~] Limit flag on PKOS01meta.code.errorcharPKOS01? Period Kaluzni et al. (2001AJ....121.1533K)dtime.perioddoublenullableE0? Epoch (HJD-2450000)dtime.epochdoublenullablePer? Period present workdtime.perioddoublenullableRAJ2000? Right ascension (J2000)pos.eq.ra;meta.mainnullableDEJ2000? Declination (J2000)pos.eq.dec;meta.mainnullableLCShow the light curvesmeta.ref.urlcharJ/other/RMxAA/54.15/table6VI photometry of 34 RR Lyrae, 14 SX Phe, 1 SRrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintVNameVariable name, VNNmeta.id;meta.maincharFilter[VI] Observation filterobs.param;obscharHJDHeliocentric Julian datedtime.epochdoubleindexedmagstStandard magnitudemagphot.magfloatmaginstInstrumental magnitudemagphot.magfloate_maginst? Error on the magnitudemagstat.errorfloatnullableFrefReference flux (in ADU/s)s**-1phot.flux.densitydoublee_FrefError on the reference flux (in ADU/s)s**-1stat.errorfloatDFlux? Differential flux (in ADU/s)s**-1phot.flux;arith.diffdoublenullablee_DFlux? Error on the differential flux (in ADU/s)s**-1stat.errorfloatnullablepPhotometric scale factorarith.factorfloat