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Table 2.
Archival spectra analysed in this study.
| Spectrograph | R | Δλ | # Spectra |
|---|---|---|---|
| (nm) | |||
| GIRAFFE | 20 000 | 370–900 | 460 |
| FEROS | 48 000 | 350–920 | 285 |
| UVES | 110 000 | 300–1100 | 201 |
| HARPS | 115 000 | 378–691 | 108 |
| CHIRON | 80 000 | 410–870 | 80 |
| HERMES | 85 000 | 380–900 | 7 |
| ELODIE | 45 000 | 385–680 | 2 |
Notes. The total number of spectra analysed is 1138 and some sources have multiple spectra. The (maximum) resolving power and spectral range of each spectrograph are indicated.
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