Table 2.
Spectra analysed in this study from our spectroscopic observations plus archival data.
| Spectrograph | R | Δλ | # Spectra |
|---|---|---|---|
| (nm) | Total/this work | ||
| FEROS | 48 000 | 350–920 | 167/45 |
| HARPS | 115 000 | 378–691 | 138/0 |
| ELODIE | 45 000 | 385–680 | 45/0 |
| SOPHIE | 75 000 | 387–694 | 62/62 |
| UVES | 110 000 | 300–1100 | 277/0 |
| CAFE | 62 000 | 407–925 | 34/34 |
Notes. Number of spectra analysed and number of new spectra obtained in this study with different instruments. The total number of spectra analysed is 723 and 141 of them are new. The (maximum) resolving power and spectral range of each spectrograph are indicated.
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