Fig. 3.
Comparison of elemental-abundance ratios of likely member stars for NGC 6723 with other GCs of similar metallicity, and the extra-tidal star with RGB and early-AGB (eAGB) cluster stars, and IRAS07134 star. Panel a: elemental-abundance patterns for our sample (black boxes and red dot) compared to the spectroscopic study of NGC 6723 Crestani et al. (2019; light blue boxplots). Panel b: comparison with M107 (Mészáros et al. 2020). Panel c: comparison with NGC 362 (Mészáros et al. 2020). Panel d: elemental-abundance patterns for the extra-tidal star compared to those of RGB GC stars. Panel e: compared with early-AGB GC stars (Mészáros et al. 2020). Panel f: comparison with a field post-AGB star, IRAS 07134 (De Smedt et al. 2016), with comparable atmospheric parameters. Boxes represent the inter-quartile ranges (IQR), whiskers the 1.5×IQR limits, and blue lines the medians.
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