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Table 1.
Results of the kinematic modelling for the groups identified by DBSCAN.
| # | N | NRV | vx, I [km s−1] | vy, I [km s−1] | vz, I [km s−1] | σv [km s−1] | κ [km s−1 pc−1] | ϖ [mas] | |
|---|---|---|---|---|---|---|---|---|---|
| λ Ori | A | 296 | 81 | 0.75 ± 0.05 | 27.4 ± 0.1 | 0.5 ± 0.05 | 0.73 ± 0.02 | 0.122 ± 0.007 |
 |
| Orion A | C | 1059 | 489 | 0.94 ± 0.06 | 27.1 ± 0.09 | −2.68 ± 0.06 | 1.63 ± 0.03 | 0.07 ± 0.006 |
 |
| Orion A | D | 69 | 50 | 1.1 ± 0.1 | 21.8 ± 0.2 | −3.7 ± 0.1 | 0.98 ± 0.07 | −0.02 ± 0.02 |
 |
| Belt | E | 150 | 10 | 4.6 ± 0.3 | 32.4 ± 2.7 | −1 ± 0.1 | 1.28 ± 0.06 | − |
 |
| 25 Ori | B0 | 710 | 73 | 0.41 ± 0.04 | 19.2 ± 0.2 | 0.045 ± 0.03 | 0.74 ± 0.02 | − |
 |
| 25 Ori | B0, b | 54 | 4 | 4.8 ± 0.4 | 25. ± 2.8 | 2.1 ± 0.1 | 0.38 ± 0.04 | − |
 |
| Orion A | B1 | 265 | 73 | 0.8 ± 0.1 | 26.8 ± 0.2 | −3.0 ± 0.1 | 1.55 ± 0.05 | 0.03 ± 0.02 |
 |
| Belt | B2 | 174 | 48 | 0.17 ± 0.14 | 27.84 ± 0.3 | −2.6 ± 0.1 | 1.6 ± 0.07 | 0.08 ± 0.03 |
 |
| Belt | B3 | 290 | 48 | −0.74 ± 0.03 | 22.5 ± 0.2 | −2.69 ± 0.05 | 0.79 ± 0.03 | − |
 |
| Belt | B4 | 46 | 10 | −0.2 ± 0.3 | 26.5 ± 0.6 | −3.1 ± 0.2 | 1.6 ± 0.1 | 0.07 ± 0.06 |
 |
| Belt | B5 | 248 | 12 | 0.9 ± 0.1 | 20.7 ± 0.9 | −2.44 ± 0.06 | 0.7 ± 0.03 | − |
 |
| Belt | B5, b | 622 | 48 | 1.2 ± 0.1 | 24.8 ± 0.2 | −1.42 ± 0.04 | 0.82 ± 0.02 | − |
 |
| 25 Ori | B6 | 40 | 0 | − | − | − | − | − | − |
| Belt | B7 | 30 | 0 | − | − | − | − | − | − |
| Belt | B7, b | 441 | 63 | 4.9 ± 0.05 | 26.7 ± 0.2 | −1.55 ± 0.05 | 0.95 ± 0.03 | 0.024 ± 0.003 |
 |
| Belt | B8 | 245 | 18 | 5.8 ± 0.08 | 28.5 ± 0.4 | 1.5 ± 0.06 | 0.9 ± 0.03 | 0.05 ± 0.05 |
 |
| Orion A | F | 116 | 17 | 5.8 ± 0.1 | 21.2 ± 0.5 | 0.3 ± 0.12 | 1. ± 0.06 | − |
 |
Notes. The first column indicates the region in the sky where the groups are located.
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