Table A.1.
Iron abundances for Galactic globular cluster TIICs.
| Cluster | ID | [Fe/H] | n | Cluster | ID | [Fe/H] | n |
|---|---|---|---|---|---|---|---|
| HP 1 | –1.57 | 2 | NGC 6341 | M 92 | –2.35 | 1 | |
| NGC 2419 | –2.20 | 1 | NGC 6388 | –0.45 | 12 | ||
| NGC 2808 | –1.18 | 1 | NGC 6401 | –1.01 | 1 | ||
| NGC 5139 | ω Cen | –1.61/–1.95 | 7 | NGC 6402 | M 14 | –1.39 | 5 |
| NGC 5272 | M 3 | –1.50 | 1 | NGC 6441 | –0.44 | 8 | |
| NGC 5286 | –1.70 | 1 | NGC 6453 | –1.48 | 2 | ||
| NGC 5904 | M 5 | –1.33 | 2 | NGC 6522 | –1.45 | 2 | |
| NGC 5986 | –1.63 | 1 | NGC 6626 | M 28 | –1.46 | 2 | |
| NGC 6093 | M 80 | –1.75 | 1 | NGC 6656 | M 22 | –1.70 | 1 |
| NGC 6205 | M 13 | –1.58 | 3 | NGC 6715 | M 54 | –1.44 | 4 |
| NGC 6218 | M 12 | –1.33 | 1 | NGC 6749 | –1.62 | 1 | |
| NGC 6229 | –1.43 | 2 | NGC 6752 | –1.55 | 1 | ||
| NGC 6254 | M 10 | –1.57 | 2 | NGC 6779 | M 56 | –2.00 | 2 |
| NGC 6256 | –0.62 | 1 | NGC 7078 | M 15 | –2.33 | 3 | |
| NGC 6266 | M 62 | –1.18 | 3 | NGC 7089 | M 2 | –1.66 | 4 |
| NGC 6273 | M 19 | –1.76 | 4 | Pal 3 | –1.67 | 1 | |
| NGC 6284 | –1.31 | 2 | Terzan 1 | –1.29 | 1 | ||
| NGC 6325 | –0.90 | 2 |
Notes. Source of the metallicities: Harris (1996), transformed to the Carretta et al. (2009) scale. For V1, V29, and V48 in ω Cen we adopted metallicities from Gonzalez & Lambert (1997) converted to the current metallicity scale, based on a solar iron abundance by number of log ϵFe = 7.54 dex (Gratton et al. 2003). For the other TIICs in ω Cen (all BLHs), we adopted −1.61 dex, which is the metallicity of V48 (the only BLH with a spectroscopic estimate of the metallicity). This assumption agrees with the metallicity distribution found by Johnson & Pilachowski (2010) and Magurno et al. (2019) in ω Cen; moreover, it is well within the standard deviation of the metallicity distribution of this cluster. For NGC 6325, we adopted the iron abundance derived by Minniti (1995). We did not transform it to our scale because log ϵFe is not available, and the standard deviation is much larger (0.30 dex) than the correction.
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