VizieR Online Data Catalog: NGC 104, 6121 & 6809 AGB and RGB stars Na abundance (Wang+, 2017)

The spectra of our sample of AGB and RGB stars in the Galactic globular clusters NGC 104, NGC 6121 and NGC 6809 were obtained with the high-resolution multi-object spectrograph FLAMES, mounted on ESO/VLT-UT2, taking advantage of GIRAFFE for the majority of our sample stars and used the UVES fibres for the brightest objects of each cluster. The basic information of our sample stars are listed in Table 3, including the evolutionary phase, instrument used for observation, coordinates, photometry and barycentric radial velocity. Our Fe abundances were derived from the equivalent widths of Fe lines, while the Na abundances were determined with spectra synthesis. Both FeI and Na abundances have been corrected for the non-LTE effect. In Table 5 we show the derived stellar parameters of our sample stars, and the Na abundances are shown in Table 7.

(3 data files).