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Table 5
Comparison between the medians and the distributions of the rotational periods of some observational samples and of the models at different ages.
| BD | VLM | |||
| Region/Model | PD (days) | PDL (days) | PD (days) | PDL (days) |
|
|
||||
| ONC (RL10) | 1.6 | 1.7 | 4.2 | 2.4 |
| ONC (D14) | – | 3.7 | 2.6 | |
| M1 (2.1 Myr) | 2.0 | 1.8 | 3.7 | 2.7 |
| M2 (2.1 Myr) | 2.0 | 1.8 | 4.3 | 2.1 |
| M4 (2.1 Myr) | 1.7 | 1.7 | 2.8 | 2.6 |
|
|
||||
| σ Ori | 1.6 | 0.88 | 2.4 | 1.7 |
| M1 (3.1 Myr) | 2.0 | 1.6 | 3.7 | 2.2 |
| M2 (3.1 Myr) | 2.0 | 1.6 | 4.3 | 2.1 |
| M4 (3.1 Myr) | 1.5 | 1.5 | 2.2 | 2.0 |
|
|
||||
| NGC 2362 | – | 1.9 | ||
| M1 (5.1 Myr) | 2.0 | 1.3 | 1.9 | |
| M2 (5.1 Myr) | 2.0 | 1.3 | 1.9 | |
| M4 (5.1 Myr) | 1.1 | 1.1 | 1.4 | |
|
|
||||
| Upper Sco | 1.8 | 0.96 | – | |
| M1 (10.1 Myr) | 2.0 | 0.8 | 3.6 | 1.0 |
| M2 (10.1 Myr) | 2.0 | 0.8 | 4.4 | 1.0 |
| M4 (10.1 Myr) | 0.6 | 0.6 | 0.9 | 0.8 |
Notes. PD is the median of the rotational period in days for disk BDs and VLM stars while PDL is the same quantity but for diskless BDs and VLM stars.
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