J/AJ/112/618ivo://CDS.VizieR/J/AJ/112/618doi:10.26093/cds/vizier.51120618CDSClement C.M.Shelton I.2023-04-06T16:50:23Z2013-10-16T09:25:22ZCDS support team

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

cds-question@unistra.frglobular-star-clustersvariable-starsccd-photometryCCD observations have been used to derive precise light curves for six of the previously known RR Lyrae variables in the Oosterhoff type II globular cluster M9 and to search for additional variables. Nine variables have been discovered, eight of the RR Lyrae type. As a result, the total number of RR Lyrae variables has been revised from 9 to 17 (9 RRc and 8 RRab), the mean period of the RRc stars has been revised from 0.341d to 0.342d and that of the RRab stars from 0.621d to 0.638d. Simon's method that relates physical properties of RRc stars to the pulsation period and Fourier phase parameter {phi}_31_ has been used to determine the mass, luminosity, and temperature for one of the RRc stars. Published observations of RR Lyrae stars in M15 have been used to test Simon's method (1993ApJ...410..526S, 1993, IAUCo, 139, 315) and the results are promising. The formulae of Jurcsik and Kovacs (1996A&A...312..111J) for relating Fourier parameters of RRab stars to [Fe/H] have been used to derive a metal abundance for M9.1996AJ....112..618Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/112/618CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/89/1707 : M9 variable stars photographic observations (Clement+, 1984)J/AJ/101/1352 : Observations of variable stars in M9 (Clement+, 1991)J/AJ/118/453 : M9 RR Lyrae CCD observations (Clement+, 1999)J/MNRAS/434/1220 : Vi light curves of NGC6333 variables (Arellano Ferro+, 2013)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/112/618https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/112/618http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/112/618https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/112/618https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/112/618http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/112/618GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/112/618/stars (List of variables)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/112/618/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/112/618/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/112/618/stars?GETtext/xml+votable180.050000true259.81125-18.52694440.0055555555555555566/29291 29377https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/112/618?format=asciiOpticaldefaultJ/AJ/112/618/starsList of variablesBmagSimbad B band magnitudemagphot.mag;em.opt.BfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintVNameVariable name (VNN), <Cl* NGC 6333 SAW VNN> in Simbadmeta.id;meta.maincharRAJ2000Simbad Hour of Right Ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Simbad Degree of Declination (J2000.0)pos.eq.dec;meta.mainVmag? Simbad V band magnitudemagphot.mag;em.opt.VfloatnullablePer? Period (from table2 of the paper)dtime.perioddoublenullableLCShow the light curvemeta.ref.urlcharSimbadSimbad column added by the CDSmeta.refcharJ/AJ/112/618/table1CCD time-series B photometry for 15 variable stars in Messier 9 (NGC 6333)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian daydtime.epoch;pos.heliocentricdoubleV2mag? B magnitude of V2magphot.mag;em.opt.BfloatnullableV4mag? B magnitude of V4magphot.mag;em.opt.BfloatnullableV5mag? B magnitude of V5magphot.mag;em.opt.BfloatnullableV6mag? B magnitude of V6magphot.mag;em.opt.BfloatnullableV7mag? B magnitude of V7magphot.mag;em.opt.BfloatnullableV10mag? B magnitude of V10magphot.mag;em.opt.BfloatnullableV11mag? B magnitude of V11magphot.mag;em.opt.BfloatnullableV14mag? B magnitude of V14magphot.mag;em.opt.BfloatnullableV15mag? B magnitude of V15magphot.mag;em.opt.BfloatnullableV16mag? B magnitude of V16magphot.mag;em.opt.BfloatnullableV17mag? B magnitude of V17magphot.mag;em.opt.BfloatnullableV18mag? B magnitude of V18magphot.mag;em.opt.BfloatnullableV19mag? B magnitude of V19magphot.mag;em.opt.BfloatnullableV20mag? B magnitude of V20magphot.mag;em.opt.BfloatnullableV21mag? B magnitude of V21magphot.mag;em.opt.Bfloatnullable