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Table 2
Telescopes, instruments, and settings used in this work.
| Source | Instrument | Grating | Telescope | Resolving power | S∕N | λ range (Å) | # Stars |
|---|---|---|---|---|---|---|---|
| 1 | ISIS | 600B | WHT | 3000 | ~300 | 3900–5500 | 20 |
| 2 | TWIN | 1200 | CAHA-3.5m | 3000 | ~300 | 3900–5100 | 15 |
| 3 | Albireo | 1800 | OSN-1.5m | 2500 | ~300 | 3900–5100 | 3 |
| 4a | HRS | 600g4739 | HET | 30 000 | ≥100 | 3800–4700 | 12 |
| 4b | HRS | 600g4739 | HET | 30 000 | ≥100 | 4700–5700 | 12 |
| 4c | HRS | 600g6302 | HET | 30 000 | ≥100 | 5300–6300 | 12 |
| 4d | HRS | 600g6302 | HET | 30 000 | ≥100 | 6400–7400 | 12 |
| 5a | ISIS | H2400B | WHT | 13 600 | >100 | 3900–5100 | 15 |
| 5b | ISIS | R1200R | WHT | 9300 | >150 | 5500–6800 | 15 |
| 6a | IDS | R1200B | INT | 5000 | >100 | 3900–5100 | 27 |
| 6b | IDS | H1800V | INT | 7200 | >150 | 6100–6800 | 66 |
| Total number of spectra → 209 | |||||||
| Total number of stars → 158 | |||||||
| Total number of stars (not repeated) → 78 | |||||||
Notes. Spectra for the detected binary stars are included in the table. Spectral data from sources 1, 2, and 3 belong to the GOSSS catalog, see Sota et al. (2011) and Maíz Apellániz et al. (2016) for further observing details.
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