Table A.3
Parameters of the stellar atmosphere models calculated for the BPASS stellar evolution tracks.
| Model | E 1 | E 2 | E 3 | E 4 | E 5 | E 6 | E 7 | E 8 | E 9 | E 10 | ||||
| A | B | A | B | A | B | A | B | B | B | B | B | B | B | |
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| Spectral type | O2-3 V | O4 V | O6 III | O4 V | WN7-8? | O5 V | WN9? | O5 V | O3-2 V ((f*))z | O3-2 V ((f*))z | O2 V ((f*)) | WN2.5 | WN2 | WN2/WC4 |
| age [106 yr] | 0.01 | 3.32 | 3.46 | 3.66 | 3.75 | 5.05 | 6.59 | 8.29 | 8.98 | 9.32 | ||||
| T∗ [kK] | 59.6 | 48.6 | 36.6 | 49.6 | 41.1 | 45.6 | 33.6 | 42.8 | 54.1 | 57.0 | 62.1 | 72.0 | 100.0 | 200.0 |
| log L [L⊙] | 5.93 | 5.12 | 6.22 | 5.29 | 6.25 | 5.29 | 6.27 | 5.31 | 5.55 | 5.65 | 5.8 | 6.0 | 6.09 | 6.22 |
| M [M⊙] | 80.0 | 32.0 | 79.5 | 32.0 | 54.1 | 41.7 | 40.7 | 50.3 | 50.0 | 50.0 | 50.0 | 45.3 | 38.3 | 34.5 |
| R∗ [R⊙] | 8.7 | 5.1 | 32.0 | 5.9 | 26.3 | 7.1 | 40.1 | 8.2 | 6.8 | 6.9 | 6.9 | 6.4 | 3.7 | 1.1 |
| log Ṁ [M⊙/ yr] | –7.8 | –8.1 | –6.1 | –7.8 | –4.7 | –7.9 | –4.4 | –7.9 | –7.8 | –7.9 | –9.0 | –5.2 | –4.8 | –5.4 |
| ν∞ [km s-1] | 2210 | 1827 | 1150 | 1692 | 1000 | 1766 | 1000 | 1807 | 1979 | 1966 | 1600 | 1600 | 2400 | 3000 |
| νorbit [km s-1] | 159 | 397 | 158 | 394 | 237 | 308 | 287 | 233 | – | – | – | – | – | – |
| X H | 0.75 | 0.75 | 0.35 | 0.75 | 0.15 | 0.75 | 0.75 | 0.64 | 0.47 | 0.18 | 0.002 | 0.0 | ||
| XC [10-4] | 0.17 | 0.17 | 0.01 | 0.17 | 0.01 | 0.17 | 0.01 | 0.01 | 0.01 | 0.01 | 0.02 | 899.0 | ||
| XN [10-4] | 0.05 | 0.05 | 0.63 | 0.05 | 0.66 | 0.05 | 0.58 | 0.65 | 0.65 | 0.65 | 0.65 | 1.52 | ||
| XO [10-4] | 0.48 | 0.48 | 0.04 | 0.48 | 0.01 | 0.48 | 0.10 | 0.01 | 0.01 | 0.01 | 0.006 | 0.41 | ||
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| MU [mag] | –6.6 | –5.3 | –8.7 | –5.6 | –8.4 | –5.9 | –9.1 | –6.1 | –6.0 | –6.1 | –6.2 | –6.3 | –5.6 | –3.9 |
| MB [mag] | –5.3 | –4.1 | –7.6 | –4.4 | –7.2 | –4.7 | –7.9 | –4.9 | –4.8 | –4.9 | –4.9 | –5.0 | –4.5 | –2.6 |
| MV [mag] | –5.0 | –3.7 | –7.3 | –4.1 | –6.9 | –4.4 | –7.7 | –4.6 | –4.5 | –4.5 | –4.6 | –4.7 | –4.1 | –2.3 |
| MJ [mag] a | –4.2 | –3.0 | –6.6 | –3.3 | –6.3 | –3.6 | –7.2 | –3.9 | –3.7 | –3.8 | –3.8 | –4.1 | –3.7 | –2.0 |
| MH [mag] a | –4.2 | –2.9 | –6.6 | –3.3 | –6.2 | –3.5 | –7.2 | –3.8 | –3.6 | –3.7 | –3.7 | –4.1 | –3.9 | –2.1 |
| MK [mag] a | –4.0 | –2.7 | –6.5 | –3.1 | –6.2 | –3.4 | –7.2 | –3.7 | –3.5 | –3.5 | –3.6 | –4.1 | –4.2 | –2.3 |
| log QH [s-1] | 49.7 | 48.9 | 49.9 | 49.1 | 50.0 | 49.0 | 50.0 | 49.0 | 49.4 | 49.5 | 49.6 | 49.9 | 49.9 | 49.8 |
| TZanstra,H [kK] | 64.6 | 50.5 | 39.4 | 52.0 | 46.0 | 46.9 | 36.9 | 43.5 | 57.5 | 61.3 | 68.1 | 78.4 | 98.7 | 186.8 |
| log QHe i [s-1] | 49.4 | 48.5 | 49.2 | 48.7 | 49.5 | 48.6 | 49.1 | 48.5 | 49.0 | 49.1 | 49.3 | 49.6 | 49.8 | 49.7 |
| log QHe ii [s-1] | 45.7 | – | 45.2 | – | – | – | 40.4 | – | – | 45.0 | – | 46.8 | 48.6 | 49.5 |
| TZanstra,He [kK] | 45.0 | – | 36.5 | – | – | – | 21.6 | – | – | 41.6 | – | 56.3 | 96.5 | 208.2 |
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| P [d] | 6.3 | 6.4 | 5.7 | 6.2 | – | – | – | – | – | – | ||||
| orbital separation [R⊙] | 69.3 | 69.6 | 61.4 | 64.0 | – | – | – | – | – | – | ||||
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| Model atom setb | I | I | I | I | I | I | I | II | II | III | ||||
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| Wind accretion rates and accretion X-ray luminosityc | ||||||||||||||
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| log Saccr [M⊙/ yr] | –11 | –12 | –8 | –8 | –9 | |||||||||
| s accr d | 0.0001 | 0.00002 | 0.1 | 0.05 | 0.006 | |||||||||
| LX [erg s-1]f | 1035 | 1034 | 1038 | 1037 | 1036 | |||||||||
Notes. The capital letters A and B denote the primary and the secondary in the binary systems.
Model atom set used in the corresponding stellar atmosphere calculations (see Table A.1).
The evolution model predict BH formation when the secondary has the spectral type O3-2V (see text for details). Accretion onto a 36 M⊙ BH is assumed. The assumed orbital separation is 64 R∗.
Accretion rate normalized to the Eddington accretion rate: 
(see Sect. 5.2 for details).
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