Table E.1.
Number of O-type stars with measured projected rotational velocities in each stellar sample.
| 2v sin i distribution | All v sin i | v sin i > 200 km s−1 | |||
|---|---|---|---|---|---|
| Ni | Ni | Ni/Ntotal | |||
| Cygnus OB2 | Complete | 69 | 9 | 0.13 | |
| M ≤ 32 M⊙ | 44 | 6 | 0.09 | ||
| Holgado et al. (2022) | Complete | 285 | 51 | 0.18 | |
| M ≤ 32 M⊙ | 84 | 27 | 0.09 | ||
| Ramírez-Agudelo et al. (2013) | Complete | 216 | 51 | 0.24 | |
| Berlanas et al. (2025) | Complete | 37 | 7 | 0.19 | |
| Dufton et al. (2019) | Complete | 47 | 9 | 0.19 | |
Notes. The first column lists the regions included in this work: from top to bottom, Cygnus OB2 (combining our dataset with measurements from Berlanas et al. 2020), the Galactic region (Holgado et al. 2022), 30 Doradus (Ramírez-Agudelo et al. 2013), Carina OB1 (Berlanas et al. 2025), and NGC 346 (Dufton et al. 2019).
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