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Table 1.
Characteristics of the spectra employed in this study.
| Region | Telescope | Instrument | Resolving power | S/N | λ Range (Å) | Stars |
|---|---|---|---|---|---|---|
| NGC 346 | Clay-6.5 m | MagE | 4100 | 100–400 | 3200–9000 | 31 |
| VLT-8.2 m | FLAMES | 7000–8500 | > 100 | 3960–5071 | 6 | |
| 30 Doradus | VLT-8.2 m | FLAMES | 7000–16 000 | ∼150 | 3960–6817 | 84 |
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