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Table 12
Literature sources of high-resolution (R ≥ 1500) [Fe/H] ratios of open clusters together with the resolution, signal-to-noise ratios, number of stars, and method used in each of them.
| Cluster | [Fe/H] | Resolution | S/N | N. Star | Method | References | |
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| Be 17 | –0.10 ± 0.09 | 25000 | ≥ 80 | 3 giant | EW1 | Friel et al. (2005) | |
| Be 20 | –0.48 ± 0.08 | 28 000 | ≥ 50 | 2 giant | EW | Yong et al. (2005) | |
| –0.30 ± 0.02 | 45 000 | ≥ 35 | 2 giant | EW | Sestito et al. (2008) | ||
| Be 21 | –0.54 ± 0.02 | 48 000 | ~20 | 4 giants | EW | Hill & Pasquini (1999) | |
| Be 22 | –0.32 ± 0.04 | 34 000 | 20–25 | 2 K giant | EW | Villanova et al. (2005) | |
| Be 25 | –0.20 ± 0.05 | 40 000 | 25–40 | 4 giant | EW | Carraro et al. (2007b) | |
| Be 29 | –0.44 ± 0.02 | 34 000 | ~70 | 2 G giant | EW | Carraro et al. (2004) | |
| –0.52 ± 0.03 | 28 000 | ≥ 100 | 2 giant | EW | Yong et al. (2005) | ||
| –0.31 ± 0.03 | 45 000 | ≥ 25 | 6 giant | EW | Sestito et al. (2008) | ||
| Be 31 | –0.54 ± 0.06 | 28 000 | ≥ 60 | 1 giant | EW | Yong et al. (2005) | |
| –0.31 ± 0.06 | 28 000 | ~100 | 2 giant | EW 1 | Friel et al. (2010) | ||
| Be 32 | –0.29 ± 0.04 | 45 000 | ≥ 50 | 9 giant | EW | Bragaglia et al. (2008) | |
| –0.30 ± 0.02 | 28 000 | ~100 | 2 giant | EW 1 | Friel et al. (2010) | ||
| Be 39 | –0.21 ± 0.01 | 28 000 | 70–115 | 3 giant | EW1 | Friel et al. (2010) | |
| Be 66 | –0.48 ± 0.24 | 34 000 | 5–15 | 2 K giant | EW | Villanova et al. (2005) | |
| Be 73 | –0.22 ± 0.10 | 40 000 | 25–40 | 2 giant | EW | Carraro et al. (2007b) | |
| Be 75 | –0.22 ± 0.20 | 40 000 | 25–40 | 1 giant | EW | Carraro et al. (2007b) | |
| Blanco 1 | +0.04 ± 0.02 | 50 000 | ≥ 70 | 8 F-G dwarf | Syn | Ford et al. (2005) | |
| +0.20 ± 0.03 | 28 000 | 100–400 | 4 dwarf | EW | Edvardsson et al. (1995) | ||
| Cr 121 | +0.25 | 20 000 | 1 supergiant | EW | Mallik (1998) | ||
| Cr 261 | –0.22 ± 0.11 | 25 000 | ≥ 75 | 4 giant | EW | Friel et al. (2003) | |
| –0.03 ± 0.04 | 40 000 | 70–130 | 6 giant | EW | Carretta et al. (2005) | ||
| –0.01 ± 0.02 | 47 000 | 80–100 | 12 giant | EW | De Silva et al. (2007) | ||
| +0.13 ± 0.05 | 45 000 | ≥ 60 | 7 giant | EW | Sestito et al. (2008) | ||
| Hyades | Mel 25 | +0.13 ± 0.02 | 45 000 | 200 | 14 F dwarf | EW | Boesgaard & Friel (1990) |
| –0.05 ± 0l03 | 60 000 | ~200 | 29 F 19 A dwarf | Syn | Varenne & Monier (1999) | ||
| +0.12 ± 0.06 | 40 000 | 100–300 | 3 giant | EW | Boyarchuk et al. (2000) | ||
| +0.13 ± 0.08 | 40 000 | ~100 | 2 F-K dwarf | EW | Sestito et al. (2003) | ||
| +0.13 ± 0.06 | 60 000 | 100–200 | 55 F-M dwarf | EW | Paulson et al. (2003) | ||
| +0.13 ± 0.05 | 60 000 | 100–200 | 46 F-K dwarf | EW/Syn | De Silva et al. (2006) | ||
| +0.14 ± 0.04 | 40 000 | 100 | 1 dwarf | EW | D’Orazi & Randich (2009) | ||
| +0.21 ± 0.04 | 60 000 | 175–225 | 3 G dwarf/4 giant | Syn | Schuler et al. (2009, 2006) | ||
| IC 2391 | –0.03 ± 0.07 | 18 000–44 000 | 30–100 | 4 dwarf | EW | Randich et al. (2001) | |
| –0.01 ± 0.02 | 40 000 | 70–280 | 7 G–K dwarf | EW | D’Orazi & Randich (2009) | ||
| IC 2581 | –0.34 ± 0.02 | 18 000 | ≥ 100 | 1 F supergiant | EW | Luck (1994) | |
| IC 2602 | –0.05 ± 0.05 | 18 000–44 000 | 30–100 | 9 dwarf | EW | Randich et al. (2001) | |
| +0.00 ± 0.01 | 40 000 | 100–250 | 8 G–K dwarf | EW | D’Orazi & Randich (2009) | ||
| IC 2714 | +0.12 ± 0.09 | 48 000 | 180 | 1 giant | EW 2 | Smiljanic et al. (2009) | |
| –0.01 ± 0.01 | 50 000 | 200–300 | 3 giant | EW | Santos et al. (2009) | ||
| IC 4651 | +0.11 ± 0.01 | 40 000 | ≥ 100 | 5 giant | EW | Carretta et al. (2004) | |
| +0.10 ± 0.03 | 45 000 | 70–120 | 5 giant/18 dwarf | EW | Pasquini et al. (2004) | ||
| +0.12 ± 0.05 | 100 000 | ~80 | 5 G dwarf | EW | Pace et al. (2008) | ||
| +0.15 ± 0.01 | 50 000 | 200–300 | 3 giant/3 dwarf | EW | Santos et al. (2009) | ||
| +0.11 ± 0.01 | 48 000 | ≥ 100 | 5 giant | EW/Syn | Mikolaitis et al. (2011a) | ||
| IC 4665 | –0.03 ± 0.04 | 60 000 | 30–150 | 18 F–K dwarf | Syn | Shen et al. (2005) | |
| IC 4725 | M 25 | +0.18 ± 0.08 | 18 000 | ≥ 100 | 2 supergiant/1 giant | EW | Luck (1994) |
| IC 4756 | –0.02 ± 0.05 | 18 000 | ≥ 100 | 4 supergiant | EW | Luck (1994) | |
| –0.15 ± 0.04 | 15 000 | 70–150 | 7 giant | EW3 | Jacobson et al. (2007) | ||
| +0.04 ± 0.04 | 48 000 | ≥ 170 | 5 giant | EW2 | Smiljanic et al. (2009) | ||
| +0.02 ± 0.03 | 50 000 | 200–300 | 3 giant/3 dwarf | EW | Santos et al. (2009) | ||
| +0.01 ± 0.09 | 100 000 | 50–100 | 3 dwarf | EW | Pace et al. (2010) | ||
| +0.08 ± 0.11 | 100 000 | 50-100 | 3 giant | EW | Pace et al. (2010) | ||
| M 11 | NGC 6705 | +0.10 ± 0.07 | 38 000 | 85–130 | 10 K giant | EW/Syn | Gonzalez & Wallerstein (2000) |
| M 34 | NGC 1039 | +0.07 ± 0.04 | 45 000 | ~70 | 9 G dwarf | EW | Schuler et al. (2003) |
| M 67 | NGC 2682 | +0.02 ± 0.05 | 28 000 | 20–50 | 4 F dwarf | EW | Friel & Boesgaard (1992) |
| –0.03 ± 0.03 | 30 000 | ≥ 100 | 9 giant | EW4 | Tautvaiŝiene et al. (2000) | ||
| –0.01 ± 0.04 | 28 000 | ≥ 200 | 3 giant | EW | Yong et al. (2005) | ||
| +0.03 ± 0.01 | 45 000 | 80–180 | 8 dwarf/2subgiant | EW | Randich et al. (2006) | ||
| +0.03 ± 0.04 | 100 000 | ~80 | 6 G dwarf | EW | Pace et al. (2008) | ||
| +0.00 ± 0.02 | 50 000 | 200-300 | 3 giant/3 dwarf | EW | Santos et al. (2009) | ||
| +0.03 ± 0.07 | 28 000 | 150–180 | 3 giant | EW1 | Friel et al. (2010) | ||
| –0.01 ± 0.05 | 21 000 | >70 | 19 giants | EW 1 | Jacobson et al. (2011b) | ||
| Mel 20 | Alpha | +0.23 ± 0.08 | 45 000 | 300–450 | 1 supergiant/1 dwarf | EW | Gonzalez & Lambert (1996) |
| persei | –0.05 ± 0.05 | 45 000 | 100 | 7 F dwarf | EW | Boesgaard & Friel (1990) | |
| Mel 66 | Cr 147 | –0.38 ± 0.01 | 30 000 | ~ 100 | 2 giant | EW | Gratton & Contarini (1994) |
| –0.33 ± 0.03 | 45 000 | 80–115 | 5 giant | EW | Sestito et al. (2008) | ||
| Mel 71 | Cr 155 | –0.30 ± 0.01 | 34 000 | ~100 | 2 giant | EW | Brown et al. (1996) |
| Mel 111 | Coma | –0.05 ± 0.05 | 28 000 | ≥ 150 | 14 F dwarf | EW | Friel & Boesgaard (1992) |
| Berenice | +0.06 ± 0.10 | 42 000 | 150–400 | 11 A 11 F dwarf | Syn | Gebran et al. (2008) | |
| NGC 188 | +0.01 ± 0.08 | 35 000 | 20–35 | 11 G dwarf | EW | Randich et al. (2003) | |
| +0.12 ± 0.02 | 28 000 | 120–140 | 4 giant | EW1 | Friel et al. (2010) | ||
| –0.03 ± 0.04 | 21 000 | >70 | 27 giants | EW1 | Jacobson et al. (2011b) | ||
| NGC 752 | –0.09 ± 0.05 | 40 000 | 80–150 | 8 dwarf | EW | Hobbs & Thorburn (1992) | |
| +0.01 ± 0.04 | 57 000 | 30–80 | 18 G dwarf | EW | Sestito et al. (2004) | ||
| NGC 1193 | –0.30 ± 0.06 | 28 000 | 100 | 1 giant | EW1 | Friel et al. (2010) | |
| NGC 1245 | –0.04 ± 0.05 | 21 000 | >70 | 13 giants | EW1 | Jacobson et al. (2011b) | |
| NGC 1817 | –0.07 ± 0.04 | 28 000 | 120 | 2 giant | EW1 | Jacobson et al. (2009) | |
| –0.16 ± 0.03 | 21 000 | > 70 | 28 giants | EW1 | Jacobson et al. (2011b) | ||
| NGC 1883 | –0.20 ± 0.22 | 20 000 | ~ 20 | 5 giant | EW | Villanova et al. (2007) | |
| –0.01 ± 0.01 | 28 000 | ~ 100 | 3 giant | EW1 | Jacobson et al. (2009) | ||
| NGC 1901 | –0.08 ± 0.01 | 33 000–64 000 | 50–80 | 1 subgiant | EW1 | Carraro et al. (2007a) | |
| NGC 2112 | –0.09 ± 0.10 | 16 000–34 000 | 80 | 2 giant | EW | Brown et al. (1996) | |
| +0.16 ± 0.03 | 33 000 | 80–100 | 3 giant | EW | Carraro et al. (2008) | ||
| NGC 2141 | –0.26 | 28 000 | ≥ 130 | 1 giant | EW | Yong et al. (2005) | |
| +0.00 ± 0.16 | 28 000 | 75 | 1 giant | EW1 | Jacobson et al. (2009) | ||
| NGC 2158 | –0.03 ± 0.14 | 28 000 | 75 | 1 giant | EW1 | Jacobson et al. (2009) | |
| –0.28 ± 0.05 | 21 000 | > 70 | 15 giants | EW1 | Jacobson et al. (2011b) | ||
| NGC 2194 | –0.08 ± 0.08 | 21 000 | > 70 | 6 giants | EW1 | Jacobson et al. (2011b) | |
| NGC 2204 | –0.23 ± 004 | 20 000 | ≥ 60 | 13 giant | EW | Jacobson et al. (2011a) | |
| NGC 2232 | +0.22 ± 0.095 | 16 000 | 70–300 | 5 dwarf | EW | Monroe & Pilachowski (2010) | |
| +0.32 ± 0.085 | 16 000 | 70–300 | 5 dwarf | EW | Monroe & Pilachowski (2010) | ||
| NGC 2243 | –0.48 ± 0.01 | 30 000 | ~ 100 | 2 giant | EW | Gratton & Contarini (1994) | |
| –0.42 ± 0.05 | 20 000 | ≥ 60 | 10 giant | EW | Jacobson et al. (2011a) | ||
| NGC 2264 | –0.18 ± 0.08 | 45 000 | 45–75 | 4 dwarf | EW | King et al. (2000) | |
| NGC 2324 | –0.17 ± 0.05 | 45 000 | ≥ 80 | 7 giant | EW | Bragaglia et al. (2008) | |
| NGC 2355 | –0.08 ± 0.08 | 21 000 | > 70 | 5 giants | EW1 | Jacobson et al. (2011b) | |
| NGC 2360 | +0.07 ± 0.06 | 28 000 | 50–200 | 4 giant | EW | Hamdani et al. (2000) | |
| +0.04 ± 0.09 | 28 000 | ≥ 70 | 4 giant | EW2 | Smiljanic et al. (2009) | ||
| –0.03 ± 0.01 | 50 000 | 200–300 | 3 giant | EW | Santos et al. (2009) | ||
| NGC 2420 | –0.57 ± 0.08 | 20 000 | 4 giant | Syn | Smith & Suntzeff (1987) | ||
| –0.20 ± 0.06 | 21 000 | > 70 | 9 giants | EW1 | Jacobson et al. (2011b) | ||
| NGC 2423 | +0.14 ± 0.06 | 50 000 | 200–300 | 3 giant | EW | Santos et al. (2009) | |
| NGC 2425 | –0.15 ± 0.09 | 21 000 | > 70 | 4 giants | EW1 | Jacobson et al. (2011b) | |
| NGC 2447 | M 93 | +0.03 ± 0.03 | 28 000 | 50–2000 | 3 giant | EW | Hamdani et al. (2000) |
| –0.01 ± 0.01 | 28 000 | ≥ 70 | 3 giant | EW2 | Smiljanic et al. (2009) | ||
| –0.10 ± 0.03 | 50 000 | 100–300 | 3 giant/3 dwarf | EW | Santos et al. (2009) | ||
| NGC 2477 | +0.07 ± 0.03 | 45 000 | ≥ 80 | 6 giant | EW | Bragaglia et al. (2008) | |
| NGC 2506 | –0.20 ± 0.02 | 40 000 | ≥ 35 | 4 giant | EW | Carretta et al. (2004) | |
| –0.24 ± 0.05 | 48 000 | ≥ 35 | 4 giant | EW | Mikolaitis et al. (2011b) | ||
| NGC 2516 | +0.01 ± 0.07 | 47 000 | 70 | 2 F dwarf | EW | Terndrup et al. (2002) | |
| NGC 2539 | +0.13 ± 0.09 | 50 000 | 200–300 | 3 giant | EW | Santos et al. (2009) | |
| NGC 2660 | +0.04 ± 0.04 | 45 000 | ≥ 45 | 5 giant | EW | Bragaglia et al. (2008) | |
| NGC 3114 | +0.05 ± 0.13 | 48 000 | 7 giant | EW | Pereira & Quireza (2010) | ||
| +0.02 ± 0.09 | 50 000 | 200–300 | 3 giant | EW | Santos et al. (2009) | ||
| NGC 3532 | +0.10 ± 0.17 | 18 000 | ≥ 100 | 5 giant/1 supergiant | EW | Luck (1994) | |
| +0.04 ± 0.05 | 48 000 | ≥ 170 | 6 giant | EW2 | Smiljanic et al. (2009) | ||
| NGC 3680 | –0.04 ± 0.03 | 100 000 | ~ 80 | 2 G dwarf | EW | Pace et al. (2008) | |
| +0.04 ± 0.10 | 48 000 | 200 | 1 giant | EW2 | Smiljanic et al. (2009) | ||
| –0.03 ± 0.01 | 50 000 | 200–300 | 3 giant/3 dwarf | EW | Santos et al. (2009) | ||
| NGC 3960 | +0.02 ± 0.04 | 45 000 | ≥ 95 | 6 giant | EW | Bragaglia et al. (2008) | |
| NGC 4349 | –0.12 ± 0.06 | 50 000 | 200–300 | 3 giant | EW | Santos et al. (2009) | |
| NGC 5460 | +0.05 ± 0.24 | 25 000 | ≥ 100 | 21 A B F | Syn | Fossati et al. (2011) | |
| NGC 5822 | +0.07 ± 0.02 | 18 000 | ≥ 100 | 1 giant | EW | Luck (1994) | |
| +0.04 ± 0.08 | 48 000 | ≥ 130 | 5 giant | EW2 | Smiljanic et al. (2009) | ||
| +0.05 ± 0.04 | 50 000 | 200–300 | 3 giant/3 dwarf | EW | Santos et al. (2009) | ||
| +0.05 ± 0.09 | 100 000 | 50–100 | 2 dwarf | EW | Pace et al. (2010) | ||
| +0.15 ± 0.11 | 100 000 | 50–100 | 3 giant | EW | Pace et al. (2010) | ||
| NGC 6067 | +0.02 ± 0.12 | 18 000 | ≥ 100 | 1 supergiant | EW | Luck (1994) | |
| NGC 6087 | +0.06 ± 0.20 | 18 000 | ≥ 100 | 2 supergiant/1 giant | EW | Luck (1994) | |
| NGC 6134 | +0.15 ± 0.07 | 40 000 | ≥ 60 | 6 gint | EW | Carretta et al. (2004) | |
| +0.12 ± 0.09 | 48 000 | ≥ 150 | 3 giant | EW2 | Smiljanic et al. (2009) | ||
| +0.15 ± 0.05 | 45 000 | ≥ 60 | 6 giant | EW1 | Mikolaitis et al. (2010) | ||
| NGC 6192 | +0.12 ± 0.04 | 47 000 | ≥ 140 | 4 giant | EW | Magrini et al. (2010) | |
| NGC 6253 | +0.46 ± 0.03 | 48 000 | 85–180 | 5 giant | Syn | Carretta et al. (2007) | |
| +0.36 ± 0.07 | 47 000 | 65–140 | 2 giant/1 subgiant/1 dwarf | EW | Sestito et al. (2007) | ||
| NGC 6281 | +0.05 ± 0.06 | 48 000 | ≥ 230 | 2 giant | EW2 | Smiljanic et al. (2009) | |
| NGC 6404 | +0.11 ± 0.04 | 47 000 | ≥ 110 | 4 giant | EW | Magrini et al. (2010) | |
| NGC 6475 | M 7 | +0.14 ± 0.06 | 48 000 | 50–150 | 13 F-K dwarf | EW | Sestito et al. (2003) |
| +0.03 ± 0.02 | 18 000 | ≥ 200 | 2 B 3 F–K dwarf/2 G–K giant | EW | Villanova et al. (2009) | ||
| NGC 6583 | +0.37 ± 0.03 | 47 000 | ≥ 80 | 2 giant | EW | Magrini et al. (2010) | |
| NGC 6633 | +0.07 ± 0.05 | 48 000 | ≥ 160 | 2 giant | EW2 | Smiljanic et al. (2009) | |
| +0.06 ± 0.01 | 50 000 | 200–300 | 3 giant | EW | Santos et al. (2009) | ||
| NGC 6791 | +0.37 ± 0.03 | 20 000 | 30 | 1 hot HB | EW/Syn | Peterson & Green (1998) | |
| +0.35 ± 0.02 | 25 000 | ≥ 40 | 6 giant | Syn | Origlia et al. (2006) | ||
| +0.38 ± 0.02 | 20 000 | 30–60 | 10 giant | Syn | Carraro et al. (2006) | ||
| +0.47 ± 0.07 | 29 000 | 40–85 | 4 giant | Syn | Carretta et al. (2007) | ||
| +0.30 ± 0.08 | 45 000 | ~ 40 | 2 dwarf | EW | Boesgaard et al. (2009) | ||
| NGC 6819 | +0.09 ± 0.03 | 40 000 | 130 | 3 giant | EW | Bragaglia et al. (2001) | |
| NGC 6882/5 | –0.03 ± 0.01 | 18 000 | ≥ 100 | 1 supergiant/1 dwarf | EW | Luck (1994) | |
| NGC 6939 | +0.00 ± 0.10 | 15 000 | 70–150 | 9 giant | EW3 | Jacobson et al. (2007) | |
| NGC 7142 | +0.08 ± 0.06 | 15 000 | 70–150 | 6 giant | EW3 | Jacobson et al. (2007) | |
| +0.16 ± 0.01 | 30 000 | 100–130 | 4 giant | EW1 | Jacobson et al. (2008) | ||
| NGC 7160 | +0.16 ± 0.03 | 16 000 | 70–300 | 16 F–G dwarf | EW | Monroe & Pilachowski (2010) | |
| NGC 7789 | –0.04 ± 0.05 | 30 000 | ≥ 50 | 9 giant | EW/Syn | Tautvaišienėet al. (2005) | |
| +0.02 ± 0.04 | 21 000 | > 70 | 28 giants | EW1 | Jacobson et al. (2011b) | ||
| Pleiades | M 45 | –0.03 ± 0.02 | 45000 | 150 | 12 F dwarf | EW | Boesgaard & Friel (1990) |
| –0.03 ± 0.10 | 18 000–44 000 | 30–100 | 2 dwarf | EW | Randich et al. (2001) | ||
| +0.06 ± 0.02 | 42 000–75 000 | 100–300 | 16 A giant/5 F dwarf | Syn | Gebran & Monier (2008) | ||
| +0.07 ± 0.03 | 45 000 | 70 | 2 dwarf | EW | King et al. (2000) | ||
| +0.07 ± 0.05 | 40 000 | 20 F–G–K dwarf | Syn | Soderblom et al. (2009) | |||
| Praesepe | M 44 | +0.04 ± 0.04 | 28 000 | 60–190 | 6 F dwarf | EW | Friel & Boesgaard (1992) |
| Mel 88 | +0.27 ± 0.04 | 100 000 | ~ 130 | 7 G dwarf | EW | Pace et al. (2008) | |
| Rup 4 | –0.09 ± 0.04 | 40 000 | 25–40 | 3 giant | EW | Carraro et al. (2007b) | |
| Rup 7 | –0.26 ± 0.05 | 40 000 | 25–40 | 5 giant | EW | Carraro et al. (2007b) | |
| Saurer 1 | –0.38 ± 0.01 | 34 000 | ~ 80 | 2 G giant | EW | Carraro et al. (2004) | |
| To 2 | –0.50 ± 0.10 | 34 000 | 50–60 | 3 giant | EW | Brown et al. (1996) | |
| –0.28 ± 0.01 | 21 000–40 000 | 15–70 | 18 giant | EW | Frinchaboy et al. (2008) | ||
| –0.31 ± 0.02 | 17 000 | 60–80 | 13 giant | EW | Villanova et al. (2010) | ||
| Tr 20 | –0.11 ± 0.13 | 50 000 | 65 | 1 giant | EW | Platais et al. (2008) | |
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