J/AJ/155/137ivo://CDS.VizieR/J/AJ/155/137doi:10.26093/cds/vizier.51550137CDSBraga V.F.Stetson P.B.Bono G.Dall'Ora M.Ferraro I.Fiorentino G.,Iannicola G.Marconi M.Marengo M.Monson A.J.Neeley J.Persson S.E.,Beaton R.L.Buonanno R.Calamida A.Castellani M.Di Carlo E.,Fabrizio M.Freedman W.L.Inno L.Madore B.F.Magurno D.Marchetti E.,Marinoni S.Marrese P.Matsunaga N.Minniti D.Monelli M.Nonino M.,Piersimoni A.M.Pietrinferni A.Prada-Moroni P.Pulone L.,Stellingwerf R.Tognelli E.Walker A.R.Valenti E.Zoccali M.2018-11-28T08:16:16Z2018-11-20T13:02:05ZCDS support team

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

cds-question@unistra.frglobular-star-clustersvariable-starsinfrared-photometryvisible-astronomybroad-band-photometryWe present a new complete near-infrared (NIR, JHK_s_) census of RR Lyrae stars (RRLs) in the globular {omega} Cen (NGC 5139). We collected 15472 JHK_s_ images with 4-8 m class telescopes over 15 years (2000-2015) covering a sky area around the cluster center of 60x34 arcmin^2^. These images provided calibrated photometry for 182 out of the 198 cluster RRL candidates with 10 to 60 measurements per band. We also provide new homogeneous estimates of the photometric amplitude for 180 (J), 176 (H) and 174 (K_s_) RRLs. These data were supplemented with single-epoch JK_s_ magnitudes from VHS (Mcmahon et al. 2013Msngr.154...35M) and with single-epoch H magnitudes from 2MASS (Cat. VII/233). Using proprietary optical and NIR data together with new optical light curves (ASAS-SN) we also updated pulsation periods for 59 candidate RRLs. As a whole, we provide JHK_s_ magnitudes for 90 RRab (fundamentals), 103 RRc (first overtones) and one RRd (mixed-mode pulsator). We found that NIR/optical photometric amplitude ratios increase when moving from first overtone to fundamental and to long-period (P>0.7 days) fundamental RRLs. Using predicted period-luminosity-metallicity relations, we derive a true distance modulus of 13.674+/-0.008+/-0.038 mag (statistical error and standard deviation of the median) based on spectroscopic iron abundances, and of 13.698+/-0.004+/-0.048 mag based on photometric iron abundances. We also found evidence of possible systematics at the 5%-10% level in the zero-point of the period-luminosity relations based on the five calibrating RRLs whose parallaxes had been determined with the HST.2018AJ....155..137Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/155/137CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/202 : Globular Clusters in the Milky Way (Harris, 1997)VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)B/gcvs : General Catalogue of Variable Stars (Samus+, 2007-2017)V/150 : Updated catalog of variable stars in globular clustersJ/A+AS/105/145 : RR Lyr stars of ome Cen (Petersen 1994)J/A+AS/125/343 : OGLE RR Lyr stars in omega Cen (Kaluzny+ 1997)J/AJ/119/1824 : Caby photometry of {Omega} Centauri (Rey+, 2000)J/A+A/424/1101 : Variable Stars in the field of {omega} Cen (Kaluzny+, 2004)J/ApJ/640/L43 : Metallicities of RR Lyrae stars in Omega Cen (Sollima+, 2006)J/AJ/133/1447 : Light curves of variable stars in {omega} CenJ/PASP/126/521 : UBVRIJHK photometry of RR Lyrae in M4 (Stetson+, 2014)J/A+A/574/A15 : RR Lyrae in omega Cen (Fernandez-Trincado+, 2015)J/ApJ/808/11 : RR Lyrae stars in M4. II. Spitzer/IRAC phot. (Neeley+, 2015)J/AJ/152/170 : RRLs in globulars. IV. UBVRI photometry in Omega CenJ/A+A/604/A120 : omega Cen RR Lyrae and SX Phoenicis stars (Navarrete+, 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/155/137https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/155/137http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/155/137https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/155/137https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/155/137http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/155/137GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/155/137/table2 (NIR-JHK_s_-mean magnitudes and amplitudes for {omega} Cen RRLs)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/155/137/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/155/137/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/155/137/table2?GETtext/xml+votable180.050000true201.4839022-47.43171560.0055555555555555565/10806 6/43228 43230 43249https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/155/137?format=asciiInfraredOpticaldefaultJ/AJ/155/137/table2NIR-JHK_s_-mean magnitudes and amplitudes for {omega} Cen RRLsSimbadNameSimbad column added by the CDSmeta.idcharf_KsmagFlag on Ksmag (6)meta.codecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDStar identifier (VNNN or NVNNN)meta.id;meta.maincharf_ID[Bl g] Flag on ID (1)meta.codecharPnew[0.253934/1.012155]? New perioddtime.perioddoublenullablef_Pnew[cde] Flag on Pnew (2)meta.codecharPold[0.28166279/0.9325]? Old period (3)dtime.perioddoublenullablef_Pold[f] Flag on Pold (4)meta.codecharVarVariable typemeta.code;src.varcharf_Var[h] Flag on Var (5)meta.codecharJmag[11.401/17.003] Apparent J band magnitudemagphot.mag;em.IR.Jfloatf_JmagFlag on Jmag (6)meta.codechare_Jmag[0.002/0.21] Uncertainty in Jmagmagstat.error;phot.mag;em.IR.JfloatAJ[0.026/0.623]? Amplitude in J band (7)magsrc.var.amplitudefloatnullablee_AJ[0.005/0.082]? Uncertainty in AJ (7)magstat.errorfloatnullableHmag[10.812/16.692]? Apparent H band magnitudemagphot.mag;em.IR.Hfloatnullablef_HmagFlag on Hmag (6)meta.codechare_Hmag[0.003/0.16]? Uncertainty in Hmagmagstat.error;phot.mag;em.IR.HfloatnullableAH[0.018/0.461]? Amplitude in H band (7)magsrc.var.amplitudefloatnullablee_AH[0.006/0.081]? Uncertainty in AH (7)magstat.errorfloatnullableKsmag[10.81/16.623] Apparent K_s_ band magnitudemagphot.mag;em.IR.Kfloate_Ksmag[0.003/0.16] Uncertainty in Ksmagmagstat.error;phot.mag;em.IR.KfloatAKs[0.013/0.394]? Amplitude in K_s_ band (7)magsrc.var.amplitudefloatnullablee_AKs[0.005/0.038]? Uncertainty in AKs (7)magstat.errorfloatnullable_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/AJ/155/137/table3New optical mean magnitudes and amplitudes of RRL candidates in {omega} CenrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDStar identifier (VNNN or NVNNN)meta.id;meta.maincharn_ID[abc] Note on ID (1)meta.notecharBand[UBVRI] Observed bandinstr.bandpasscharmagmean? Mean magnitude in Band (2)magphot.magfloatnullablee_magmean? Uncertainty in magmean (2)magstat.errorfloatnullablen_magmean[b] Note on magmean (b=blended source)meta.notecharAmp? Amplitude in Band (2)magphot.magfloatnullablee_Amp? Uncertainty in Amp (2)magstat.errorfloatnullablen_Amp[b] Note on Amp (b=blended source)meta.notechar