J/A+A/424/1101ivo://CDS.VizieR/J/A+A/424/1101doi:10.26093/cds/vizier.34241101CDSKaluzny J.Olech A.Thompson I.B.Pych W.Krzeminski W.,Szchwarzenberg-Czerny A.2009-04-03T21:00:30Z2009-04-03T20:53:10ZCDS support team

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

cds-question@unistra.frglobular-star-clustersvariable-starsccd-photometryWe present results of a photometric survey for variable stars in the field of the globular cluster Omega Centauri. The observed region was centered roughly on the cluster core and covered 644arcmin^2^. The cluster was monitored on 59 nights in 1999 and 2000. A total of 117 new variables were identified. Among them there are 16 RR Lyr-type stars, 35 SX Phe variables and 26 eclipsing binaries. A comprehensive catalog including all variable stars so far reported from the cluster field is presented. We list basic photometric properties and provide finding charts for a total of 392 objects. For 313 of them new BV light curves were obtained. The presented sample includes several interesting variables, such as SX Phe stars with extremely short periods of pulsation and several candidates for pulsating K giants. Optical counterparts to 9 X-ray sources detected by XMM and Chandra telescopes were identified: all of them are likely to be foreground variables not related to the cluster.2004A&A...424.1101Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/424/1101CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/493/959 : UBV(RI)cHalpha photometry in omega Cen (Bellini+, 2009)J/A+AS/120/139 : Variables in Omega Cen Fields 5139A-C (Kaluzny+ 1996)J/A+AS/122/471 : Variables in Omega Cen Fields 5139D-F (Kaluzny+ 1997)J/PASP/106/828 : BVRI photometry of Omega Cen (Walker 1994)J/MNRAS/250/314 : CCD photometry of Omega Cen (Noble+ 1991)J/AJ/114/1087 : Omega Cen radial velocities (Mayor+ 1997)J/AJ/108/1350 : Omega Cen FUV photometry (Whitney+, 1994)J/A+AS/125/343 : OGLE RR Lyr stars in omega Cen (Kaluzny+ 1997)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/424/1101https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/424/1101http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/424/1101https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/424/1101https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/424/1101http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/424/1101GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/424/1101/table1 (Photometric parameters for variables in Omega Cen)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/424/1101/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/424/1101/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/424/1101/table1?GETtext/xml+votable180.050000true201.5219167-47.39522220.0055555555555555565/10806 6/43228 43230 43249https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/424/1101?format=asciiOpticaldefaultJ/A+A/424/1101/table1Photometric parameters for variables in Omega CenrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarStar designation (1)meta.id;meta.maincharn_StarNumber in Bellini et al. 2009, Cat. J/A+A/493/959meta.idintnullableRAJ2000? Right Ascension J2000pos.eq.ra;meta.mainnullableDEJ2000? Declination J2000pos.eq.dec;meta.mainnullablePer? Period of variabilitydtime.perioddoublenullableu_Per[:?] Uncertainty flag on Permeta.code.errorcharVmax? V magnitude in maximummagphot.mag;em.opt.Vfloatnullableu_Vmax[:?] Uncertainty flag on Vmaxmeta.code.errorcharn_Vmax[B] B: Bmax instead of Vmaxmeta.notecharVmin? V magnitude in minimummagphot.mag;em.opt.Vfloatnullableu_Vmin[:?] Uncertainty flag on Vminmeta.code.errorcharn_Vmin[B] B: Bmin instead of Vminmeta.notechar<V>? Mean V magnitudemagphot.mag;em.opt.Vfloatnullable<B>? Mean B magnitudemagphot.mag;em.opt.Bfloatnullableu_<B>[?] Uncertainty flag on <B>meta.code.errorcharTypeType of variabilitymeta.notecharOtherDesignation of the star in other catalogs (2)meta.id;phys.atmol.configurationcharFig[a-f] Figure containing the finding chartobs.fieldcharRemarksRemarksmeta.notecharVLCName of the V light curve in "vlc" subdirectorymeta.id;meta.filecharBLCName of the B light curve in "blc" subdirectorymeta.id;meta.filechar