Table 1.
Stellar, wind, and line-broadening parameters for the finally analyzed 18 sample stars.
| # | Name | Sp. class. | Teff | log g | YHe | logQ | v sin i | vmac |
|---|---|---|---|---|---|---|---|---|
| (kK) | (dex) | (dex) | (km s−1) | (km s−1) | ||||
| Dwarfs | ||||||||
| 1 | HD36512 | O9.7 V | 33.0 | 4.02 | 0.10 | − 13.4 | 13 | 33 | 25 |
| 2 | HD34078 | O9.5 V | 34.5 | 4.07 | 0.12 | − 13.0 | 13 | 32 | 20 |
| 3 | HD46202 | O9.2 V | 34.9 | 4.13 | 0.10 | − 13.1 | 11 | 38 | 20 |
| 4 | HD214680 | O9 V | 35.2 | 3.89 | 0.10 | − 13.5 | 14 | 43 | 30 |
| 5 | HD97848 | O8 V | 35.6 | 3.67 | 0.10 | − 13.3 | 41 | 77 | 65 |
| 6 | HD46966 | O8.5 IV | 35.9 | 3.84 | 0.10 | − 13.0 | 40 | 66 | 66 |
| 7 | HD93222 | O7 V((f)) | 36.8 | 3.63 | 0.11 | − 12.9 | 50 | 90 | 90 |
| 8 | HD12993 | O6.5 V((f)) Nstr | 39.2 | 3.89 | 0.16 | − 13.2 | 70 | 79 | 60 |
| 9 | HD303311 | O6 V((f))z | 40.1 | 3.91 | 0.11 | − 13.0 | 47 | 61 | 50 |
| 10 | HD96715 | O4 V((f))z | 45.2 | 3.91 | 0.13 | − 12.8 | 59 | 86 | 86 |
| Supergiants and bright giants | ||||||||
| 12 | HD195592 | O9.7 Ia | 28.0 | 2.91 | 0.12 | − 12.1 | 38 | 100 | 100 |
| 13 | HD152249 | OC9 Iab | 31.1 | 3.20 | 0.10 | − 12.5 | 71 | 70 | 70 |
| 14 | HD71304 | O8.7 II | 32.0 | 3.30 | 0.11 | − 12.7 | 52 | 100 | 100 |
| 15 | HD207198 | O8.5 II(f) | 33.1 | 3.31 | 0.15 | − 12.7 | 52 | 97 | 97 |
| 16 | HD225160 | O8 Iabf | 33.2 | 3.34 | 0.13 | − 12.2 | 77 | 103 | 90 |
| 17 | HD171589 | O7.5 II(f) | 36.5 | 3.65 | 0.15 | − 12.6 | 100 | 86 | 86 |
| 18 | HD151515 | O7 II(f) | 36.0 | 3.55 | 0.13 | − 12.6 | 67 | 98 | 98 |
| 19 | HD169582 | O6 Iaf | 38.9 | 3.70 | 0.23 | − 12.3 | 66 | 97 | 97 |
Notes. Stellar and wind parameters (the latter condensed in the wind-strength parameter, log Q) together with v sin i as derived by Holgado et al. (2018). The helium abundance is given as the number fraction YHe = NHe∕NH. Macroturbulence (vmac) values as obtained by Holgado et al. (2018; first entry), and during the present work (second entry). We note that stars #11 (HD 191781,ON9.7Iab) and #20 (HD 190429, O4 If) from our original sample were discarded during the course of our analysis, due to reasons described in the text.
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