R light curves of NGC 6253 variablesJ/A+A/509/A17ivo://CDS.VizieR/J/A+A/509/A17doi:10.26093/cds/vizier.35090017CDSDe Marchi F.Poretti E.Montalto M.Desidera S.Piotto G.2018-01-04T08:23:10Z2010-03-28T07:24:59ZCDS support team
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
cds-question@unistra.fropen-star-clustersvariable-starsphotometryThis work presents the first high-precision variability survey in the field of the intermediate-age, metal-rich open cluster NGC 6253. We discovered 595 variables and we also characterized most of them providing their variability classes, periods and amplitudes. The sample is complete at short periods: we classified 20 pulsating variables, 225 contact systems, 99 eclipsing systems (22 Beta Lyr type, 59 Beta Per type, 18 RS CVn type), and 77 rotational variables. The time-baseline hampered the precise characterization of 173 variables with periods longer than 4-5days. Moreover, we found a cataclysmic system undergoing an outburst of about 2.5mag.2010A&A...509A..17Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/509/A17CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/505/1129 : BVRIJHK and proper motions in NGC 6253 (Montalto+, 2009)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/509/A17https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/509/A17http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/509/A17https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/509/A17https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/509/A17http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/509/A17GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/509/A17/tablea9 (List of binary systems (contact, detached and semi-detached binaries) located at less than 8' from the centre which are considered as candidate members of NGC 6253)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/509/A17/tablea9?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/509/A17/tablea9?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/509/A17/tablea9?GETtext/xml+votable180.050000true254.65618833-52.616197780.005555555555555556Cone search capability for table J/A+A/509/A17/tablea10 (List of rotational and long-period variables located at less than 8' from the centre which are considered to be candidate cluster members)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/509/A17/tablea10?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/509/A17/tablea10?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/509/A17/tablea10?GETtext/xml+votable180.050000true254.73227583-52.681556390.005555555555555556Cone search capability for table J/A+A/509/A17/stars (All the variables discovered in our survey of NGC 6253 and its surrounding field (tables A1-A8 of the paper))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/509/A17/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/509/A17/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/509/A17/stars?GETtext/xml+votable180.050000true254.51793306-52.919478610.0055555555555555566/42176-42177https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/509/A17?format=asciiOpticaldefaultJ/A+A/509/A17/tablea9List of binary systems (contact, detached and semi-detached binaries) located at less than 8' from the centre which are considered as candidate members of NGC 6253Per? Perioddtime.perioddoublenullableMP4[y/n] PLC V-I membershipmeta.code.membercharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCode[cd] contact or (semi-)detached binarymeta.codecharStar[114/30482] Star sequential numbermeta.recordintChip[1/8] WFI chip numbermeta.id;instrint[MPD2009]? Montalto et al., 2009, Cat. J/A+A/505/1129 catalog identification numbermeta.idintnullableVTypeVariable type (G1)src.classcharRmaxMaximum R magnitudemagphot.mag;em.opt.Rfloat<Vmag>? Mean V magnitudemagphot.mag;em.opt.Vfloatnullable<B-V>? Mean B-V colour indexmagphot.color;em.opt.B;em.opt.Vfloatnullable<V-I>? Mean V-I colour indexmagphot.color;em.opt.V;em.opt.IfloatnullableTmin? Epoch of minimum brightness, HJD-2453100dtime.epochfloatnullableRampAmplitude of variation in R bandmagarith.rate;phot.mag;em.opt.RfloatDistDistance from cluster centrearcminpos.angDistancefloatMP? Membership probability%statintnullableMP1[y/n] CMD B-V membershipmeta.code.membercharMP2[y/n] CMD V-I membershipmeta.code.membercharMP3[y/n] PLC B-V membershipmeta.code.membercharSimbadSimbad column added by the CDSmeta.refcharRAJ2000Right ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.main
J/A+A/509/A17/tablea10List of rotational and long-period variables located at less than 8' from the centre which are considered to be candidate cluster membersTabTable number for type of variable (1)meta.id;meta.mainint<B-V>? Mean B-V colour indexmagphot.color;em.opt.B;em.opt.VfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStar[114/30482] Star sequential numbermeta.recordintChip[1/8] WFI chip numbermeta.id;instrint[MPD2009]? Montalto et al., 2009, Cat. J/A+A/505/1129 catalog identification numbermeta.idintnullableVTypeVariable type (G1)src.classchar<Rmag>Mean R magnitudemagphot.mag;em.opt.Rfloat<Vmag>? Mean V magnitudemagphot.mag;em.opt.Vfloatnullable<V-I>? Mean V-I colour indexmagphot.color;em.opt.V;em.opt.IfloatnullableTmax? Epoch of maximum brightness, HJD-2453100dtime.epochfloatnullablePer? Perioddtime.perioddoublenullableRampAmplitude of variation in R bandmagarith.rate;phot.mag;em.opt.Rfloatu_RampUncertainty flag on Rampmeta.code.errorcharDistDistance from cluster centrearcminpos.angDistancefloatMP? Membership probability%statintnullableu_MP[*] Uncertainty flag (stars with V>18, often close to the chip borders) on MPmeta.code.errorcharSimbadSimbad column added by the CDSmeta.refcharRAJ2000Right ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.main
J/A+A/509/A17/starsAll the variables discovered in our survey of NGC 6253 and its surrounding field (tables A1-A8 of the paper)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTabTable number for type of variable (1)meta.id;meta.mainintStar[114/30482] Star sequential numbermeta.recordintprimaryChip[1/8] WFI chip numbermeta.id;instrint[MPD2009]? Montalto et al., 2009, Cat. J/A+A/505/1129 catalog identification numbermeta.idintnullableVTypeVariable type (G1)src.classchar<Rmag>Mean R magnitudemagphot.mag;em.opt.Rfloat<Vmag>? Mean V magnitudemagphot.mag;em.opt.Vfloatnullable<B-V>? Mean B-V colour indexmagphot.color;em.opt.B;em.opt.Vfloatnullable<V-I>? Mean V-I colour indexmagphot.color;em.opt.V;em.opt.IfloatnullableTmax? Epoch of maximum brightness, HJD-2453100dtime.epochfloatnullablePer? Perioddtime.perioddoublenullableRampAmplitude of variation in R bandmagarith.rate;phot.mag;em.opt.Rfloatu_RampUncertainty flag on Rampmeta.code.errorcharDistDistance from cluster centrearcminpos.angDistancefloatMP? Membership probability%statintnullableu_MP[*] Uncertainty flag (stars with V>18, often close to the chip borders) on MPmeta.code.errorcharNm? Number of measurementsmeta.numberintnullableLCPlot of the light curvemeta.ref.urlcharFileNameName of the file containing the light curve in the "lc" subdirectory.meta.id;meta.filecharSimbadSimbad column added by the CDSmeta.refcharRAJ2000Right ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.main