Table 6
Summary of the stellar parameters of both stellar components obtained from the different methods.
| Spectroscopic analysis | Orbital analysis(a) | Single star evolution(b) | Binary evolution(c) | |||||
|---|---|---|---|---|---|---|---|---|
| star 1 | star 2 | star 1 | star 2 | star 1 | star 2 | star 1 | star 2 | |
| Teff (kK) |  |
 |
42 (fix) | 32 (fix) |  |
 |
42.0 | 31.6 |
| log g (cm s−2) |  |
 |
 |
 |
 |
 |
3.56 | 4.01 |
| log L (L⊙) |  |
 |
 |
 |
 |
 |
5.55 | 4.66 |
| R (R⊙) |  |
 |
 |
 |
 |
 |
11.3 | 7.2 |
| M (M⊙) |  |
 |
 |
 |
 |
 |
17.8 | 18.2 |
| Mini (M⊙) | – | – | – | – |  |
 |
33.0 | 17.5 |
| log Ṁ (M⊙ yr−1) |  |
 |
– | – |  |
 |
− 6.4(f) | − 6.46(f) |
| v∞ (km s−1) |  |
2500 | – | – | – | – | – | – |
| vsini (km s−1) | 140(d) | 425(d) | – | – |  |
 |
96 | 575 |
| XH (by mass) | 0.73 | 0.73 | – | – |  |
 |
0.47 | 0.74 |
| XC∕10−5 (by mass) |  |
21(e) | – | – |  |
 |
3 | 20 |
| XN∕10−5 (by mass) |  |
3(e) | – | – |  |
 |
91 | 7 |
| XO∕10−5 (by mass) |  |
110(e) | – | – |  |
 |
35 | 110 |
| log QH (s−1) | 49.43 | 47.88 | – | – | – | – | 49.34(g) | 47.72(g) |
| log QHe I (s−1) | 48.72 | 45.83 | – | – | – | – | 48.62(g) | 45.76(g) |
| log QHe II (s-1) | 40.80 | 41.38 | – | – | – | – | 43.63(g) | 35.75(g) |
| age (Myr) | – | – | – | – |  |
 |
6.0 | 6.0 |
Notes. (a)Results from the PHOEBE code, see Sect. 3.2. (b)Results from the BONNSAI tool, see Sect. 5.1. (c)Models calculated with MESA, see Sect. 5.2. No uncertainties are given, as we did no in-depth analysis. (d)Obtained with the iacob broadtool. (e)Initial CNO abundances scaled to SMC metallicity; for more details see Sect. 4.2. (f)According to the mass-loss recipe implemented in our evolutionary models. (g)Values taken from the spectroscopic model that is calculated with the parameters of the binary evolutionary models.
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