J/MNRAS/514/1122ivo://CDS.VizieR/J/MNRAS/514/1122CDSSahuS.Subramaniam A.Singh G.Yadav R.Valcarce A.R.Choudhury S.,Rani S.Prabhu D.S.Chung C.Cote P.Leigh N.Geller A.M.,Chatterjee S.Rao N.K.Bandyopadhyay A.Shara M.Dalessandro E.,Pandey G.Postma J.E.Hutchings J.Simunovic M.Stetson P. B.,Thirupathi S.Puzia T.Sohn Y.-J.2026-07-16T10:06:41Z2026-07-16T11:05:58ZCDS support team

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

cds-question@unistra.frglobular-star-clustersstellar-populationswhite-dwarf-starsphotometryultraviolet-astronomyWe present the first results of eight globular clusters (GCs) from the AstroSat/UVIT Legacy Survey programme GlobULeS based on the observations carried out in two far-ultraviolet (FUV) filters (F148W and F169M). The FUV-optical and FUV-FUV colour-magnitude diagrams (CMDs) of GCs with the proper motion membership were constructed by combining the Ultra-Violet Imaging Telescope (UVIT) data with Hubble Space Telescope (HST) UV Globular Cluster Survey data for inner regions and Gaia Early Data Release for regions outside the HST's field. We detect sources as faint as F148W~23.5mag, which are classified based on their locations in CMDs by overlaying stellar evolutionary models. The CMDs of eight GCs are combined with the previous UVIT studies of three GCs to create stacked FUV-optical CMDs to highlight the features/peculiarities found in the different evolutionary sequences. The FUV (F148W) detected stellar populations of 11 GCs comprise 2816 horizontal branch (HB) stars [190 extreme HB (EHB) candidates], 46 post-HB (pHB), 221 blue straggler stars (BSSs), and 107 white dwarf (WD) candidates. We note that the blue HB colour extension obtained from F148W-G colour and the number of FUV detected EHB candidates are strongly correlated with the maximum internal helium (He) variation within each GC, suggesting that the FUV-optical plane is the most sensitive to He abundance variations in the HB. We discuss the potential science cases that will be addressed using these catalogues including HB morphologies, BSSs, pHB, and WD stars.2022MNRAS.514.1122Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/514/1122CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/150 : Updated catalog of variable stars in globular clusters (Clement+ 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/514/1122https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/514/1122http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/514/1122https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/514/1122https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/514/1122http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/514/1122GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/514/1122/table4 (UVIT photometric catalogue of Globular Clusters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/514/1122/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/514/1122/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/514/1122/table4?GETtext/xml+votable180.050000true78.509665-40.027126940.0055555555555555566/9436 9664 9666 10321 10336-10337 16647 16658 21017 33330 34242-34243 44427 44430 47970-47971 48434 48440https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/514/1122?format=asciiUVdefaultJ/MNRAS/514/1122/table4UVIT photometric catalogue of Globular ClustersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster Namemeta.id.parentcharUVITUVIT IDmeta.id;meta.maincharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainF148W? F148W magnitude [AB]magphot.mag;em.UV.100-200nmfloatnullablee_F148W? rms uncertainty on F148Wmagstat.errorfloatnullableF169M? F169M magnitude [AB]magphot.mag;em.UV.100-200nmfloatnullablee_F169M? rms uncertainty on F169Mmagstat.errorfloatnullableGmag? G magnitude [AB] (1)magphot.mag;em.optfloatnullableMemProb? Membership probability (2)stat.probabilityfloatnullableuniqueIDUnique ID (3)meta.idcharCMDataCross matched datameta.codecharClassClassificationsrc.classcharHBtypeHB typesrc.classcharTeff? Effective temperature (4)Kphys.temperature.effectiveintnullableVarTypeVariable type (5)meta.notechar