Table 2.
Log of the GTC OSIRIS spectroscopic observations.
| Name | RA | Dec | J | G | Date | Date | SNR |
|---|---|---|---|---|---|---|---|
| hh:mm:ss.ss | °:′:″ | mag | mag | yyyy-mm-dd | s | 6750–6800 Å | |
| cbd67 | 12:18:32.71 | +27:37:31.3 | 17.551 | 22.485 | 13-04-2018 | 2 × 1800 | 4.9 |
| cbd34 | 12:23:57.37 | +24:53:29.0 | 15.940 | 20.140 | 13-04-2018 | 2 × 1500 | 12.9 |
| cbd34 | 12:23:57.37 | +24:53:29.0 | 15.940 | 20.140 | 13-05-2018 | 2 × 1500 | 7.8 |
| cbd10 | 12:21:02.46 | +26:22:04.2 | 16.814 | 21.139 | 12-04-2018 | 2 × 1500 | 2.0 |
| ComaBer 4 | 12:35:56.59 | +25:21:11.2 | 17.993 | 22.928 | 13-05-2018 | 2 × 1800 | 4.9 |
| ComaBer 5 | 12:45:25.19 | +28:18:16.2 | 17.801 | 22.736 | 13-05-2018 | 6 × 1800 | 7.0 |
| ComaBer 7 | 12:18:27.25 | +31:15:53.3 | 17.162 | > 21.36 | 12-05-2018 | 2 × 1500 | 3.6 |
| T159 | 12:11:14.90 | +23:35:39.9 | 16.787 | 22.736 | 29-04-2018 | 2 × 1800 | 3.9 |
| T191 | 12:42:53.70 | +24:55:07.1 | 17.530 | 22.736 | 29-04-2018 | 4 × 1960 | 4.1 |
| T191 | 12:42:53.70 | +24:55:07.1 | 17.530 | 22.736 | 01-05-2018 | 2 × 1960 | 3.2 |
| T191 | 12:42:53.70 | +24:55:07.1 | 17.530 | 22.736 | 11-05-2018 | 2 × 1960 | 7.6 |
| DENIS1228 | 12:28:15.20 | −15:47:34.2 | 14.378 | – | 13-04-2018 | 2 × 370 | 10.1 |
Notes. The names of the targets as given in Casewell et al. (2006) and Tang et al. (2018), and this paper, respectively, are listed along with their coordinates, magnitudes, dates of observations, instrumental set-up, weather conditions, and spectral types derived in this work. The last row is a well-known field lithium L-dwarf template (Martín et al. 1997, 1999) observed as part of our programme GTC55-19A.
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