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Table 1
Summary of the spectroscopic observations.
| Telescope | Instrument | Range | Resolution | # | |
| (Å) | (λ/Δλ) | stars | |||
|
|
|||||
| 1.5 m@ESO | B&Ch | 3400–6800 | 1 600 | 66 | |
| 2.1 m@OAN-SPM | B&Ch | 3600–9900 | 1 500 | 6 | |
| 2.2 m@CAHA | FOCES | 4200–7000 | 30 000 | 61 | |
Notes. 29 stars were observed only at low resolution, and 19 only at high resolution. One star was observed at low resolution with both the B&Ch spectrographs.
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