Table 2.
Proper motions and parallaxes of the Chamaeleon subgroups in our sample of cluster members.
| Sample | Ninit | NRUWE | μα cos δ | μδ | ϖ | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| (mas yr−1) |
(mas yr−1) |
(mas) |
|||||||||
| Mean ± SEM | Median | SD | Mean ± SEM | Median | SD | Mean ± SEM | Median | SD | |||
| Cha I (north) | 87 | 76 | −21.903 ± 0.063 | −21.953 | 0.548 | −0.054 ± 0.099 | −0.023 | 0.863 | 5.178 ± 0.016 | 5.175 | 0.138 |
| Cha I (south) | 101 | 84 | −23.053 ± 0.069 | −23.048 | 0.629 | 1.127 ± 0.118 | 1.022 | 1.083 | 5.314 ± 0.023 | 5.322 | 0.211 |
| Cha I | 188 | 160 | −22.507 ± 0.065 | −22.403 | 0.824 | 0.566 ± 0.091 | 0.405 | 1.146 | 5.250 ± 0.015 | 5.235 | 0.192 |
| Cha II | 41 | 31 | −20.207 ± 0.170 | −19.954 | 0.945 | −7.635 ± 0.129 | −7.491 | 0.717 | 5.037 ± 0.021 | 5.061 | 0.115 |
Notes. We provide for each subgroup the initial number of stars, final number of stars after the RUWE filtering (see Sect. 3.1), mean, standard error of the mean (SEM), median and standard deviation (SD) of proper motions and parallaxes.
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