Table 2.
Atmospheric parameters and abundances relative to hydrogen (in dex, n denoting the number of lines used per ion) for the B2 primary.
| Fractional contribution |
LMC | |||
|---|---|---|---|---|
| 1.0 | 0.58 | n | baseline | |
| Teff (kK) | 21.0 ± 1.0 | 22.6 ± 1.0 | – | – |
| log g (cm s−2) | 3.60 ± 0.2 | 4.0: | – | – |
| vt (km s−1) | 0 (†) | 0 (†) | – | – |
| ve sin i (km s−1) | 10 (†) | 10 (†) | – | – |
| Radius (R⊙) | 7.8 ± 0.3 | 5.6 ± 0.3 | – | – |
| BC (mag) | −2.09 | −2.27 | – | – |
| log L/L⊙ | 4.03 ± 0.04 | 3.87 ± 0.05 | – | – |
| C | 7.25 ± 0.16 | 7.74 ± 0.17 | 5 | 7.75 |
| N | 6.83 ± 0.12 | 7.12 ± 0.10 | 4 | 6.90 |
| O | 8.09 ± 0.12 | 8.49 ± 0.14 | 16 | 8.35 |
| Mg | 6.63 | 7.22 | 1 | 7.05 |
| Si | 6.71 ± 0.12 | 7.25 ± 0.07 | 3 | 7.20 |
Notes. Results are provided for the best fitting fractional contribution of 0.58 from the B-type star, and for comparison we also show results for a contribution of 1.0. The LMC baseline abundances are from Hunter et al. (2007).
(†)vt ≤ 2 km s−1 and ve sin i ≤ 15 km s−1.
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