Table 2
Most probable masses and rotation speed of the O-type component of the 11 WR+O binaries in our sample.
| System | Sp. type | P [days] | WR mass | O-mass | vrot [km s−1] | vrot [km s−1] |
|---|---|---|---|---|---|---|
| begin WR | ||||||
| WR21 | WN5o+O4-5 | 8.3 | >19 | >37 | 331/138 | 415/173 |
| WR30 | WC6+O6-8 | 18.8 | 16.4 | 34 | ?/ >178 | ?/ >205 |
| WR31 | WN4o+O8V | 4.8 | >11 | >24 | 336/274 | 493/402 |
| WR42 | WC7+O7V | 7.9 | 16 | 27 | 500–511/170–177 | 620–630/211–218 |
| WR47 | WN6o+O5V | 6.2 | 52 | 60 | ?/ >88 | ?/ >190 |
| WR79 | WC7+O5-8 | 8.9 | >9.5 | >24 | ?/ >174 | ?/ >250 |
| WR97 | WN5b+O7 | 12.6 | 18 | 30 | 470/279 | 502/298 |
| WR113 | WC8d+O8-9IV | 29.7 | >11 | >22 | 310–330/170–181 | 320–340/175–186 |
| WR11 | WC8+O7.5III-V | 78.5 | 9.6 | 30 | 220/? | 232/? |
| WR127 | WN5o+O8.5V | 9.5 | >9 | >20 | 300–366/? | 350–416/? |
| WR139 | WN5o+O6III-V | 4.2 | 9.4 | 28 | 215/? | 365/? |
Notes. Column 7 lists the rotation velocities at the end of the RLOF (= the beginning of the WR phase) of the progenitor binary calculated as explained in the text. The vrot (Col. 6) lists the speed values resulting from the He I/He II line measurements as explained in Shara et al. (2017). A question mark meansthat this particular measurement is not available.
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