J/ApJS/193/23ivo://CDS.VizieR/J/ApJS/193/23doi:10.26093/cds/vizier.21930023CDSMcDonald I.Boyer M.L.van Loon J.T.Zijlstra A.A.Hora J.L.,Babler B.Block M.Gordon K.Meade M.Meixner M.Misselt K.,Robitaille T.Sewilo M.Shiao B.Whitney B.2014-02-17T14:19:40Z2011-05-18T10:42:46ZCDS support team

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

cds-question@unistra.freffective-temperaturegiant-starsglobular-star-clustersFundamental parameters and time evolution of mass loss are investigated for post-main-sequence stars in the Galactic globular cluster 47 Tucanae (NGC 104). This is accomplished by fitting spectral energy distributions (SEDs) to existing optical and infrared photometry and spectroscopy, to produce a true Hertzsprung-Russell diagram. We confirm the cluster's distance as d=4611^+213^_-200_pc and age as 12+/-1Gyr. Horizontal branch models appear to confirm that no more red giant branch mass loss occurs in 47 Tuc than in the more metal-poor {omega} Centauri, though difficulties arise due to inconsistencies between the models. Using our SEDs, we identify those stars that exhibit infrared excess, finding excess only among the brightest giants: dusty mass loss begins at a luminosity of ~1000L_{sun}_, becoming ubiquitous above L=2000L_{sun}_. Recent claims of dust production around lower-luminosity giants cannot be reproduced, despite using the same archival Spitzer imagery.2011ApJS..193...23Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/193/23CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/166/249 : Stellar dynamics and proper motions in 47Tuc (McLaughlin+,J/A+A/435/657 : Equivalent widths of 5 giants in 47 Tuc (Alves-Brito+, 2005)J/AJ/123/855 : Magellanic Clouds Photometric Survey: the SMC (Zaritsky+,J/A+A/372/85 : Detected sources at 12{mu}m in 47 Tuc (Ramdani+, 2001)J/ApJ/559/1060 : Variables in 47 Tuc (Albrow+, 2001)J/A+AS/106/161 : (V,I) photometry in NGC 6356 and 47 Tuc (Bica+ 1994)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/ApJS/193/23https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/193/23http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/193/23https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/193/23https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/193/23http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/193/23GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/193/23/table3 (Stellar parameters as determined by SED fitting)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/193/23/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/193/23/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/193/23/table3?GETtext/xml+votable180.050000true4.64157111-72.3280350.0055555555555555566/33321 33323 33324https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/193/23?format=asciiOpticaldefaultJ/ApJS/193/23/table3Stellar parameters as determined by SED fittingrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqStar sequence numbermeta.id;meta.mainintRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainindexedDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainindexedTeffEffective temperatureKphys.temperature.effectiveintLumLuminositysolLumphys.luminositydoubleJ/ApJS/193/23/table1Input photometric data and their coverage of the clusterNoteCoveragemeta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambdaWavelengthem.wlf_lambda[ac] Spitzer/IRAC or MIPS for 24um (1)meta.codecharAutSource authormeta.bib.authorcharf_Aut[b] Flag on Aut (2)meta.codecharBibCodeBibcodemeta.bib.bibcodechar