Table 2.
Hyades L/T members with ground-based parallaxes from the Liverpool telescope.
| Name | α (2015.5) | δ (2015.5) | SpT | Baseframe | Nobs,Nstar | ϖabs | COR | μα cosδ | μδ | ΔT |
|---|---|---|---|---|---|---|---|---|---|---|
| (hh:mm:ss.sss) | (dd:mm:ss.sss) | (year) | (mas) | (mas) | (mas yr−1) | (mas yr−1) | (yr) | |||
| Hya02 | 03:52:46.433 | +21:12:32.805 | L1.5 | 2016.7913 | 11, 36 | 17.7 ± 2.0 | 0.96 | 116.4 ± 2.0 | −26.9 ± 1.5 | 2.38 |
| Hya10 | 04:17:33.988 | +14:30:15.360 | L2.0 | 2015.7622 | 11, 36 | 28.5 ± 3.9 | 0.96 | 120.2 ± 3.6 | −12.2 ± 5.5 | 2.39 |
| Hya11 | 03:55:42.143 | +22:57:01.073 | L3.5 | 2016.7371 | 10, 47 | 39.1 ± 16.3 | 0.96 | 138.1 ± 13.3 | −19.4 ± 9.0 | 2.37 |
| Hya12 | 04:35:43.043 | +13:23:44.877 | L3.0 | 2016.8054 | 16, 63 | 24.1 ± 2.1 | 0.92 | 100.2 ± 1.9 | −15.1 ± 2.0 | 2.33 |
| Hya19 | 04:46:35.444 | +14:51:25.951 | L4.0 | 2016.7342 | 13, 80 | 20.6 ± 2.5 | 0.82 | 76.3 ± 2.9 | −17.7 ± 1.5 | 2.12 |
| HyaL5 | 04:18:35.011 | +21:31:26.788 | L5.0 | 2016.7315 | 11, 67 | 25.8 ± 2.9 | 0.81 | 141.5 ± 2.7 | −45.7 ± 2.3 | 2.35 |
| CFHT-Hy-20 | 04:30:38.887 | +13:09:56.636 | T2.0 | 2018.0531 | 13, 48 | 30.8 ± 3.0 | 0.77 | 141.3 ± 2.9 | −14.5 ± 3.2 | 2.37 |
| CFHT-Hy-21 | 04:29:22.869 | +15:35:29.842 | T1.0 | 2015.7815 | 10, 72 | 33.5 ± 12.7 | 0.79 | 82.1 ± 9.8 | −15.5 ± 8.6 | 2.38 |
Notes. We give the names, coordinates at epoch 2015.5 to be consistent with Gaia DR2 (Table 1), optical spectral types (Lodieu et al. 2014b; Martín et al. 2018), epochs of the base frame, the number of observations used in the solutions (Nobs) with the numbers of reference stars entering the fit (Nstar), the corrections from relative to absolute parallax (COR), the proper motions, the baselines of the observational sequence (ΔT).
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