Table 3.
Distance and spatial velocity of the Chamaeleon subgroups in our sample of cluster members.
| Sample | Nd | NUVW | d | U | V | W | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (pc) | (km s−1) |
(km s−1) |
(km s−1) |
|||||||||
| Mean | Median | SD | Mean | Median | SD | Mean | Median | SD | ||||
| Cha I (north) | 76 | 39 |
 |
−10.6 ± 0.4 | −10.6 | 0.7 | −19.3 ± 0.6 | −19.4 | 1.0 | −11.5 ± 0.2 | −11.5 | 0.6 |
| Cha I (south) | 84 | 39 |
 |
−11.5 ± 0.6 | −11.6 | 0.9 | −19.7 ± 0.9 | −19.8 | 1.2 | −10.9 ± 0.3 | −10.8 | 0.8 |
| Cha I (all stars) | 160 | 78 |
 |
−11.0 ± 0.5 | −11.0 | 0.9 | −19.5 ± 0.8 | −19.6 | 1.1 | −11.2 ± 0.3 | −11.1 | 0.8 |
| Cha II (all stars) | 31 | 19 |
 |
−11.0 ± 2.9 | −11.2 | 1.7 | −18.1 ± 4.2 | −17.8 | 2.7 | −8.5 ± 1.4 | −8.6 | 1.1 |
Notes. We provide for each subgroup the number of stars used to compute the distance (after the RUWE filtering) and spatial velocity, Bayesian distance, mean, median and standard deviation (SD) of the UVW velocity components. The uncertainties in the mean velocities are computed as explained in the text of Sect. 3.3.
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