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Table 1
The mass-range of the O-type components in WR+O binaries resulting from the observed spectral type.
| System | Sp. Type | Mass estimate of O-star (M⊙) |
|---|---|---|
| WR21 | WN5o+O4–5 | 37–60 |
| WR30 | WC6+O6–8 | 24–50 |
| WR31 | WN4o+O8V | 24–34 |
| WR42 | WC7+O7V | 30–37 |
| WR47 | WN6o+O5V | 37–70 |
| WR79 | WC7+O5–8 | 24–60 |
| WR97 | WN5b+O7 | >30 |
| WR113 | WC8d+O8-9IV | 20–30 |
| WR127 | WN5o+O8.5V | 17–24 |
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