Table 5
Best-fit stellar component parameters for F2 from CMFGEN model fitting to disentangled spectra and from SED fitting.
| Primary | Secondary | |
|---|---|---|
| Temperature Teff (K) | 34 100 |
33 800 |
| He/H (number) | 0.85 |
0.25 |
| Clumping factora fcl | 0.04b | 0.08b |
| N (mass fraction) | 0.03 ± 0.15 dex | 0.008 ± 0.2 dex |
| C (mass fraction) | 0.00015 ± 0.2 dex | 0.0015 ± 0.15 dex |
| Si (mass fraction) | 0.0017 ± 0.2 dex | 0.0014 ± 0.2 dex |
| Terminal velocity v∞ (km s−1) | 1325 ± 150 | 2200 (assumed) |
| Velocity field shape parametera β | 1.15 | 1.15 |
| Moneti law: | ||
Luminosity (log  ) |
6.445 | 6.305 |
| Radius (R⊙) | 47 | 41.4 |
| Mass loss Ṁ (M⊙ yr−1) | 3.65 × 10−5 | 1.43 × 10−5 |
| α = 2.29: | ||
Luminosity (log  ) |
5.648 | 5.508 |
| Radius (R⊙) | 19 | 16.5 |
| Mass loss Ṁ (M⊙ yr−1) | 9.23 × 10−6 | 3.61 × 10−6 |
Notes. (a) More details on the fcl and β parameters used here are given in Najarro et al. (2009). A 2-β law is used with β = 1.15 in the inner wind and β = 2.2 in the outer wind. (b)Clumping values between 0.1 and 0.04 are possible (with corresponding rescaling).
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