Table 1
Targets for our ALMA observations.
| Name | RA | Dec | Sp | W1 − W3 | W1 − W4 | IR | Distance | Flux | M dust | Ref. |
| type | (mag) | (mag) | excess | (pc) | (mJy) | (10-2ME) | ||||
|
|
||||||||||
| TWA 30B | 11:32:18 | –30:18:31 | M4 | 4.96 | 7.23 | Y | 45.8 ± 4.8 | 0.83 ± 0.07 | 3.7 | 1 |
| TWA 30A | 11:32:18 | –30:19:51 | M5 | 1.72 | 3.64 | Y | 45.8 ± 4.8 | <0.20 | <0.9 | 2 |
| TWA 31 | 12:07:10 | –32:30:53 | M5 | 1.80 | 3.92 | Y | 55.0 ± 6.4 | <0.20 | <1.3 | 3 |
| TWA 33 | 11:39:33 | –30:40:00 | M5 | 1.63 | 3.25 | Y | 46.6 ± 5.2 | 0.33 ± 0.03 | 1.5 | 4 |
| TWA 34 | 10:28:45 | –28:30:37 | M5 | 1.35 | 2.75 | Y | 47.0 ± 5.6 | 0.54 ± 0.06 | 2.5 | 4 |
| TWA 32 | 12:26:51 | –33:16:12 | M6 | 1.77 | 3.77 | Y | 59.4 ± 6.2 | 2.10 ± 0.05 | 15.8 | 3, 5 |
| J1045-2819 | 10:45:52 | –28:19:30 | M6 | 0.32 | <2.73 | ? | 52.6 ± 6.4 | <0.15 | <0.9 | 6 |
| J1111-2655 | 11:11:28 | –26:55:02 | M6 | 0.47 | 0.93 | N | 43.8 ± 5.0 | <0.16 | <0.7 | 6 |
| J1203-3821 | 12:03:59 | –38:21:40 | M8 | 0.80 | <3.09 | ? | 65.8 ± 8.6 | <0.15 | <1.4 | 6 |
| J1252-4948 | 12:52:09 | –49:48:28 | M8/9 | 0.86 | 3.00 | Y | 91.8 ± 9.4 | <0.13 | <2.3 | 6 |
| J1106-3715 | 11:06:44 | –37:15:11 | M9 | <0.88 | <4.02 | ? | 53.4 ± 8.0 | <0.12 | <0.7 | 6 |
| J1326-5022 | 13:26:53 | –50:22:27 | M9 | 1.44 | <3.32 | ? | 71.0 ± 9.0 | <0.13 | <1.4 | 6 |
| J1247-3816 | 12:47:44 | –38:16:46 | M9 | 2.16 | 4.27 | Y | 63.8 ± 6.4 | <0.15 | <1.3 | 7 |
| TWA 29 | 12:45:14 | –44:29:07 | M9/9.5 | <0.43 | <3.90 | ? | 33.3 ± 7.2 | <0.14 | <0.3 | 8 |
| J1207-3900 | 12:07:48 | –39:00:04 | L0/1 | 0.43 | <4.44 | ? | 60.2 ± 5.2 | <0.14 | <1.1 | 7 |
Notes. The third column indicates if the source had prior indications of IR excess from WISE (W1 − W4 > 2); “?” denotes upper limits at WISE bands W3, W4, or both. Distances listed here have been calculated via the BANYAN II kinematic tool (Gagné et al. 2014a). Also listed are the continuum detections and 3σ upper limits. Dust masses are estimated as described in Sect. 3 and using Tdust ~ 40 K. All sources are unresolved with ALMA.
Reference. (1) Looper et al. 2010b; (2) Looper et al. 2010a; (3) Shkolnik et al. 2011; (4) Schneider et al. 2012b; (5) Rodriguez et al. 2011; (6) Looper 2011; (7) Gagné et al. 2014b; (8) Looper et al. 2007.
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