J/AJ/143/50ivo://CDS.VizieR/J/AJ/143/50doi:10.26093/cds/vizier.51430050CDSWoodley K.A.Goldsbury R.Kalirai J.S.Richer H.B.Tremblay P.-E.,Anderson J.Bergeron P.Dotter A.Esteves L.Fahlman G.G.,Hansen B.M.S.Heyl J.Hurley J.Rich R.M.Shara M.M.Stetson P.B.2017-11-10T11:15:12Z2013-04-24T13:18:05ZCDS support team

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

cds-question@unistra.frglobular-star-clusterswhite-dwarf-starsWe present a new distance determination to the Galactic globular cluster 47 Tucanae (47 Tuc, NGC 104) by fitting the spectral energy distributions of its white dwarfs (WDs) to pure hydrogen atmosphere WD models. Our photometric data set is obtained from a 121-orbit Hubble Space Telescope program using the Wide Field Camera 3 UVIS/IR channels, capturing F390W, F606W, F110W, and F160W images. These images cover more than 60 arcmin^2^ and extend over a radial range of 5-13.7arcmin (6.5-17.9pc) within the globular cluster. Using a likelihood analysis, we obtain a best-fitting unreddened distance modulus of (m-M)_o_=13.36+/-0.02+/-0.06 corresponding to a distance of 4.69+/-0.04+/-0.13kpc, where the first error is random and the second is systematic. We also search the WD photometry for infrared excess in the F160W filter, indicative of low-mass companions, and find no convincing cases within our sample.2012AJ....143...50Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/143/50CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/hst : HST Archived Exposures Catalog (STScI, 2007)J/A+A/537/A2 : 8.6um imaging of 47 Tuc (Momany+, 2012)J/ApJS/166/249 : Stellar dynamics & PMs in 47 Tuc (McLaughlin+, 2006)J/AJ/130/1693 : HST-ACS observations of 5 globular clusters (Brown+, 2005)J/A+A/391/945 : HST photometry of 74 galactic GCs (Piotto+, 2002)J/A+AS/144/5 : Nearby GCs photometric catalog (Rosenberg+, 2000)J/A+AS/106/161 : VI photometry in NGC 6356 and 47 Tuc (Bica+ 1994)J/ApJS/93/161 : CCD photometry of 6 globular clusters (Sarajedini+ 1994)J/ApJS/85/293 : HST Observations of core of 47 Tuc (de Marchi+ 1993)J/PASP/99/739 : BV photometry in 4 fields of 47 Tuc (Hesser+, 1987)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/143/50https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/143/50http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/143/50https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/143/50https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/143/50http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/143/50GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/143/50/table2 (Data on the selected white dwarfs)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/143/50/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/143/50/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/143/50/table2?GETtext/xml+votable180.050000true5.67046667-72.17570.0055555555555555566/33321 333231.1796835550914393e-19 5.645017022762991e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/143/50?format=asciiOpticaldefaultJ/AJ/143/50/table2Data on the selected white dwarfsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDWhite dwarfs identification <[WGK2012] WD NN> in Simbadmeta.id;meta.maincharFieldField location in the cluster ("Stare" or Swath 1-12 fields)meta.id;obs.fieldcharRAJ2000[0] Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000[71/72] Degree of declination (J2000)pos.eq.dec;meta.mainF390W[22.3/25.7] The HST/WFC3 F390W (UV) band magnitude (Vega)magphot.mag;em.opt.Ufloate_F390WUncertainty on F390Wmagstat.errorfloatF606W[22.9/25.6] The HST/WFC3 F606W (optical) band magnitude (Vega)magphot.mag;em.opt.Rfloate_F606WUncertainty on F606Wmagstat.errorfloatF110W[23.5/25.6] The HST/WFC3 F110W band (IR) magnitude (Vega)magphot.mag;em.IR.Jfloate_F110WUncertainty on F110Wmagstat.errorfloatF160W[23.6/25.8] The HST/WFC3 F160W band (IR) magnitude (Vega)magphot.mag;em.UV.100-200nmfloate_F160WUncertainty on F160Wmagstat.errorfloatTeff[9600/32000] Effective temperature (1)Kphys.temperature.effectiveinte_TeffUncertainty on TeffKstat.error;phys.temperature.effectiveintSimbadSimbad column added by the CDSmeta.ref.urlchar