Table 1.
Summary of the data.
| Object | Gaia EDR3 source id | Telescope | Resolution | S/N1 | S/N2 | S/N3 |
|---|---|---|---|---|---|---|
| 1336_6432 | 1336408284224866432 | Subaru | 80 000 | 94 | 139 | 137 |
| 2657_5888 | 2657496656325125888 | Subaru | 80 000 | 41 | 79 | 92 |
| 2813_6032 | 2813331813720876032 | Subaru | 80 000 | 130 | 173 | 126 |
| 2870_9072 | 2870313110476579072 | Subaru | 80 000 | 88 | 118 | 52 |
| 3336_0672 | 3336204190352220672 | Subaru | 80 000 | 90 | 194 | 114 |
| 3341_2720 | 3341934256545182720 | Subaru | 80 000 | 126 | 140 | 99 |
| 4587_5616 | 4587905579084735616 | Subaru | 80 000 | 48 | 81 | 75 |
| 4850_5696 | 4850673911632285696 | Magellan | 32 000–40 000 | 207 | 128 | 176 |
| G 90-36 | 876358870971624320 | Keck | 48 000 | 41 | 67 | 50 |
| G 115-58 | 1011379899590855936 | Subaru | 100 000 | 90 | 147 | 98 |
| HIP 28104 | 2910503176753011840 | VLT | 50 000 | 93 | 161 | 181 |
| HIP 98492 | 4299974407538484096 | Keck | 72 000 | 77 | 133 | 83 |
| G 112-43 | 3085891537839267328 | Subaru | 100 000 | 214 | 208 | 99 |
| CD−48°02445 | 5551565291043498496 | VLT | 50 000 | 130 | 289 | 258 |
| HD 59392 | 5586241315104190848 | VLT | 50 000 | 170 | 441 | 248 |
Notes. We obtained new high-resolution spectra for the eight Sequoia stars in the first group, and archival high-resolution spectra for the four Sequoia stars in the second group and for the three standard stars in the last group. The S/N1, S/N2, and S/N3 were measured at around 4500, 5533, and 6370 Å, respectively, and converted to per 0.01 Å.
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