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Table 1.
Predicted terminal velocities v∞ (in km s−1) and the mass-loss rates Ṁ (in M⊙ yr−1) for B supergiants.
| Z = Z⊙/10 | Z = Z⊙/30 | Z = Z⊙/100 | ||||||
|---|---|---|---|---|---|---|---|---|
| Model | Teff [kK] | R* [R⊙] | v∞ | Ṁ | v∞ | Ṁ | v∞ | Ṁ |
| M = 25 M⊙, log(L/L⊙) = 5.28, Γ = 0.18 | ||||||||
| 275-25 | 27.5 | 19.3 | 1640 | 4.8 × 10−8 | 1270 | 3.0 × 10−8 | 1100 | 1.0 × 10−8 |
| 250-25 | 25.0 | 23.3 | 1130 | 4.8 × 10−8 | 960 | 3.0 × 10−8 | 1150 | 2.6 × 10−9 |
| 225-25 | 22.5 | 28.8 | 1220 | 3.8 × 10−8 | 1240 | 1.9 × 10−8 | 980 | 7.3 × 10−9 |
| 200-25 | 20.0 | 36.4 | 1260 | 2.7 × 10−8 | 1160 | 1.3 × 10−8 | 760 | 6.3 × 10−9 |
| 175-25 | 17.5 | 47.6 | 1100 | 1.8 × 10−8 | 830 | 1.1 × 10−8 | 160 | 4.2 × 10−9 |
| 150-25 | 15.0 | 64.8 | 630 | 1.6 × 10−8 | 670 | 7.2 × 10−9 | 410 | 1.8 × 10−9 |
| 125-25 | 12.5 | 93.3 | 90 | 1.1 × 10−8 | 110 | 3.1 × 10−9 | 60 | 4.5 × 10−10 |
| 100-25 | 10.0 | 146 | 330 | 2.5 × 10−9 | no wind | no wind | ||
| M = 40 M⊙, log(L/L⊙) = 5.66, Γ = 0.27 | ||||||||
| 275-40 | 27.5 | 29.9 | 1800 | 1.4 × 10−7 | 1550 | 7.7 × 10−8 | 1170 | 3.8 × 10−8 |
| 250-40 | 25.0 | 36.1 | 1250 | 1.3 × 10−7 | 810 | 1.1 × 10−7 | 1180 | 1.3 × 10−8 |
| 225-40 | 22.5 | 44.6 | 940 | 1.2 × 10−7 | 1140 | 6.1 × 10−8 | 1080 | 2.3 × 10−8 |
| 200-40 | 20.0 | 56.4 | 1160 | 7.9 × 10−8 | 1140 | 4.0 × 10−8 | 830 | 2.0 × 10−8 |
| 175-40 | 17.5 | 73.7 | 1210 | 4.3 × 10−8 | 970 | 3.4 × 10−8 | 680 | 1.4 × 10−8 |
| 150-40 | 15.0 | 100 | 130 | 4.6 × 10−8 | 180 | 2.5 × 10−8 | 140 | 9.3 × 10−9 |
| 125-40 | 12.5 | 145 | 110 | 6.7 × 10−8 | 40 | 7.5 × 10−9 | 90 | 3.5 × 10−9 |
| 100-40 | 10.0 | 226 | 320 | 1.9 × 10−8 | 260 | 3.1 × 10−9 | no wind | |
| M = 60 M⊙, log(L/L⊙) = 5.88, Γ = 0.30 | ||||||||
| 275-60 | 27.5 | 38.5 | 1870 | 2.3 × 10−7 | 1660 | 1.3 × 10−7 | 1260 | 5.9 × 10−8 |
| 250-60 | 25.0 | 46.5 | 1450 | 2.2 × 10−7 | 920 | 1.8 × 10−7 | 1380 | 1.4 × 10−8 |
| 225-60 | 22.5 | 57.5 | 1090 | 1.8 × 10−7 | 1090 | 1.1 × 10−7 | 1180 | 3.3 × 10−8 |
| 200-60 | 20.0 | 72.7 | 1270 | 1.4 × 10−7 | 1270 | 7.2 × 10−8 | 990 | 3.5 × 10−8 |
| 175-60 | 17.5 | 95.0 | 1290 | 8.5 × 10−8 | 1040 | 5.7 × 10−8 | 760 | 2.3 × 10−8 |
| 150-60 | 15.0 | 129 | 640 | 8.3 × 10−8 | 680 | 5.1 × 10−8 | 550 | 2.0 × 10−8 |
| 125-60 | 12.5 | 186 | 370 | 1.2 × 10−7 | 80 | 1.9 × 10−8 | 90 | 7.4 × 10−9 |
| 100-60 | 10.0 | 291 | 110 | 3.2 × 10−8 | 80 | 5.8 × 10−9 | no wind | |
Notes. Γ is the Eddington parameter for electron Thomson scattering. For simplicity, Γ is calculated assuming fully ionized medium.
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