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Table 1
Summary of the wavelength coverage, exposure time per observing block (OB), and measured spectral resolution (Δλ) of the different FLAMES modes and settings used in the survey.
| Mode | Setting | Exp. time/OB | λ-coverage | Δλ | R |
| [s] | [Å] | [Å] | |||
|
|
|||||
| Medusa | LR02 | 2 × 1815 | 3960–4564 | 0.61 | 7000 |
| Medusa | LR03 | 2 × 1815 | 4499–5071 | 0.56 | 8500 |
| Medusa | HR15N | 2 × 2265 | 6442–6817 | 0.41 | 16 000 |
| ARGUS | LR02 | 2 × 1815 | 3960–4570 | 0.40 | 10 500 |
| UVES | 520 | 2 × 1815 | 4175–6200 | 0.10 | 53 000 |
Notes. The UVES data do not include the 5155 to 5240 Å region because of the gap between the two detectors.
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