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Table 2
Parameters of the sample stars.
| Star | Sp.T. | Teff | log g | log gc | Vsini | vmac | C/H | N/H | O/H | log (N/C) | log (N/O) | |
| [kK] | [km s-1] | [km s-1] | [10-4] | [10-4] | [10-4] | |||||||
|
|
||||||||||||
| BD +60261 | O7.5 III(n)(f) | 34.5 | 3.50 | 3.54 | 162 | <110 | 2.3 |
5.8 |
>4.0 | 0.40 |
<0.16 | |
| HD 24912 | O7.5 III(n)(f) | 33.5 | 3.50 | 3.56 | 230 | <80 | 1.3 |
5.1 |
2.3 |
0.59 |
0.35 |
|
| HD 34656 | O7.5 II(f) | 35.5 | 3.60 | 3.61 | 63 | 73 | 0.9 |
7.8 |
3.6 |
0.94 |
0.34 |
|
| HD 35633 | O7.5 II(n)(f) | 33.5 | 3.40 | 3.45 | 168 | <125 | 2.1 |
1.0 |
>4.7 | –0.32 |
<–0.67 | |
| HD 36861 | O8 III((f)) | 35.0 | 3.75 | 3.75 | 60 | 60 | 2.3 |
1.4 |
>3.5 | –0.22 |
<–0.40 | |
| HD 94963 | O7 II(f) | 35.0 | 3.50 | 3.51 | 63 | 99 | 2.0 |
4.7 |
>3.2 | 0.37 |
<0.17 | |
| HD 97434 | O7.5III(n)((f)) | 34.0 | 3.50 | 3.57 | 230 | <125 | 1.3 |
5.5 |
9.2 |
0.63 |
–0.22 |
|
| HD 151515 | O7 II(f) | 36.0 | 3.60 | 3.61 | 67 | 88 | 1.7 |
5.6 |
2.5 |
0.52 |
0.35 |
|
| HD 162978 | O8 II((f)) | 33.5 | 3.40 | 3.41 | 53 | 93 | 1.7 |
5.9 |
4.0 |
0.54 |
0.17 |
|
| HD 163800 | O7.5 III((f)) | 35.5 | 3.60 | 3.61 | 56 | 100 | 3.0 |
3.1 |
>6.4 | 0.01 |
<–0.31 | |
| HD 167659 | O7 II-III(f) | 36.0 | 3.60 | 3.61 | 76 | 92 | 2.2 |
2.1 |
4.5 |
–0.02 |
–0.33 |
|
| HD 171589 | O7 II(f) | 36.0 | 3.75 | 3.76 | 98 | 83 | 2.0 |
5.5 |
5.4 |
0.44 |
0.01 |
|
| HD 175754 | O8II(n)((f))p | 33.0 | 3.30 | 3.37 | 191 | <90 | 2.6 |
9.6 |
7.3 |
0.57 |
0.12 |
|
| HD 186980 | O7.5 III(f) | 35.5 | 3.75 | 3.75 | 52 | 96 | 2.0 |
2.8 |
6.0 |
0.15 |
–0.33 |
|
| HD 203064 | O7.5 IIIn((f)) | 33.5 | 3.60 | 3.68 | 314 | <45 | 0.7 |
1.8 |
>5.5 | 0.41 |
<–0.49 | |
Notes. Uncertainties on Teff, log g, Vsini and vmac are ~2.0 kK, 0.20 dex, 10 and 20 km s-1 respectively. log gc is the surface gravity corrected for centrifugal acceleration. Abundances are number ratios.
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