Table 1.
Log of X-shooter observations.
| Name | RA [hh:mm:ss] | Dec [dd:mm:ss] | Membership | Program | Date | Exp. time [s] | Slit [”] |
|---|---|---|---|---|---|---|---|
| UVB/VIS/NIR | UVB/VIS/NIR | ||||||
| TWA 1 | 11:01:51.917 | −34:42:17.00 | 1 | 085.C-0238 | 2010-04-07 | 2 × (10/10/10) | 0.5/0.4/0.4 |
| ” | ” | ” | ” | ” | ” | 2 × (60/60/60) | ” |
| TWA 3A | 11:10:27.767 | −37:31:51.79 | 2 | 085.C-0238 | 2010-04-07 | 2 × (100/100/100) | 0.5/0.4/0.4 |
| TWA 3B | 2 | 086.C-0173 | 2011-01-13 | 2 × (150/150/152) | 0.5/0.4/0.4 | ||
| TWA 8A | 11:32:41.246 | −26:51:55.95 | 1 | 086.C-0173 | 2011-01-12 | 2 × (200/200/200) | 0.5/0.4/0.4 |
| TWA 8B | 11:32:41.165 | −26:52:09.04 | 1 | 086.C-0173 | 2011-01-13 | 2 × (150/150/152) | 1.0/0.9/0.4 |
| TWA 22 | 10:17:26.892 | −53:54:26.52 | 4 | 086.C-0173 | 2011-01-13 | 2 × (150/150/152) | 1.0/0.9/0.4 |
| TWA 27 | 12:07:33.468 | −39:32:53.00 | 1 | 084.C-0269 | 2010-03-23 | 4 × (900/900/900) | 1.0/0.9/0.9 |
| ” | ” | ” | ” | 089.C-0143 | 2012-04-19 | 4 × (900/850/900) | ” |
| TWA 28 | 11:02:09.833 | −34:30:35.53 | 1 | 084.C-0269 | 2010-03-23 | 4 × (900/900/900) | 1.0/0.9/0.9 |
| TWA 30A | 11:32:18.317 | −30:19:51.81 | 1 | 087.C-0244 | 2011-04-23 | 2 × (300/300/300) | 0.5/0.4/0.4 |
| ” | ” | ” | ” | ” | ” | 2 × (450/450/450) | 1.0/0.9/0.9 |
| ” | ” | ” | ” | 287.C-5039 | 2011-07-15 | 4 × (230/140/300) | 0.8/0.9/0.9 |
| TWA 30B | 11:32:18.223 | −30:18:31.65 | 1 | 087.C-0244 | 2011-04-23 | 4 × (900/900/900) | 1.0/0.9/0.9 |
| ” | ” | ” | ” | 287.C-5039 | 2011-07-15 | 4 × (490/400/580) | ” |
| TWA 31 | 12:07:10.894 | −32:30:53.72 | 4 | 093.C-0097 | 2014-04-18 | 4 × (500/560/560) | 1.0/0.9/0.9 |
| TWA 32 | 12:26:51.355 | −33:16:12.47 | 1 | 093.C-0097 | 2014-04-18 | 4 × (470/535/560) | 1.0/0.9/0.9 |
| TWA 40 | 12:07:48.362 | −39:00:04.40 | 2 | 095.C-0147 | 2015-06-01 | 8 × (900/850/900) | 1.6/1.5/1.2 |
| J1247-3816 | 12:47:44.290 | −38:16:46.40 | 3 | 095.C-0147 | 2015-05-28 | 4 × (900/850/900) | 1.6/1.5/1.2 |
Notes. “Name” = target identifier following the convention of Gagné et al. (2017). “RA, Dec” = J2000 target coordinates, as listed in Gagné et al. (2017). A single set of coordinates is reported for the TWA 3 system, composed of the spectroscopic binary TWA 3A and of the tertiary component TWA 3B, separated by about 
(Kellogg et al. 2017, and references therein). “Membership” = membership likelihood to the TWA, compiled in Gagné et al. (2017), coded as: 1 → bona fide member; 2 → high-likelihood candidate member; 3 → candidate member; 4 → likely contaminant from nearby moving group or association. “Program” = ID of the ESO X-shooter program during which the observations were obtained. “Date” = date of the observations. “Exp. time” = number of exposures (performed in nodding mode) times the total integration time per exposure for each arm. “Slit” = slit width used for the observations in each of the three arms of the spectrograph.
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