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Table 1

Sonic-point conditions for WC/WO stars in the Galaxy and LMC.

Name ST log   (L) M log   (Ṁ) ν∞ νesc η Rref/R⋆ f T ⋆ T ref T s log   (Pr) log   (Pg)
[ L⊙ ] [ M⊙ ] [kK] [kK] [kK]
WR102 2 5.68 19.21 –5.16 5000 3567 3.56 1.21 0.58 8.95 200.0 181.7 297.8 7.30 4.97
WR142 2 5.70 19.77 –4.99 5000 3576 4.97 1.42 0.58 17.14 200.0 167.9 321.1 7.43 5.13
WR038 4 5.20 10.30 –4.66 3200 2169 21.65 2.49 0.60 224.82 126.0 79.9 288.1 7.24 5.14
WR052 4 5.12 9.37 –4.71 3225 1925 23.21 2.04 0.63 153.56 112.0 78.5 257.5 7.04 4.94
WR144 4 5.22 10.55 –4.60 3500 1929 25.81 2.12 0.64 179.91 112.0 76.9 262.4 7.08 4.95
WR004 5 5.30 11.64 –4.68 2528 1364 13.00 1.42 0.65 40.59 79.0 66.2 156.1 6.18 4.08
WR017 5 5.15 9.70 –4.85 2231 1358 11.04 1.36 0.62 33.05 79.0 67.6 151.7 6.13 4.05
WR033 5 5.30 11.64 –4.56 3342 1364 22.72 1.42 0.71 64.89 79.0 66.2 175.3 6.38 4.22
WR111 5 5.35 12.38 –4.67 2398 1540 11.23 1.64 0.61 49.74 89.0 69.5 172.2 6.35 4.26
WR114 5 5.35 12.38 –4.54 3200 1367 20.24 1.45 0.70 60.36 79.0 65.7 170.9 6.33 4.18
WR150 5 5.40 13.19 –4.54 3000 1545 17.08 1.67 0.66 72.26 89.0 68.8 187.2 6.49 4.37
WR005 6 5.45 14.07 –4.64 2120 1376 8.39 1.49 0.61 30.73 79.0 64.7 142.5 6.02 3.94
WR013 6 5.48 14.63 –4.65 2000 1379 7.34 1.50 0.59 28.07 79.0 64.4 138.8 5.97 3.90
WR015 6 5.55 16.06 –4.47 2675 1388 12.61 1.54 0.66 45.35 79.0 63.7 154.4 6.16 4.03
WR023 6 5.50 15.02 –4.56 2342 1381 9.95 1.51 0.63 36.27 79.0 64.2 147.3 6.07 3.98
WR027 6 5.48 14.63 –4.63 2100 1379 8.09 1.50 0.60 30.35 79.0 64.4 141.4 6.00 3.93
WR045 6 5.50 15.02 –4.59 2200 1381 8.78 1.51 0.61 32.77 79.0 64.2 143.7 6.03 3.95
WR132 6 5.35 12.38 –4.68 2400 1229 11.10 1.29 0.66 27.91 71.0 62.5 134.5 5.92 3.81
WR154 6 5.30 11.64 –4.72 2300 1364 10.76 1.42 0.63 34.77 79.0 66.2 150.3 6.11 4.03
WR014 7 5.30 11.64 –4.75 2194 1226 9.55 1.27 0.64 24.15 71.0 62.9 130.7 5.87 3.78
WR056 7 5.35 12.38 –4.75 2009 1229 7.78 1.29 0.62 20.85 71.0 62.5 125.3 5.79 3.72
WR064 7 5.20 10.30 –4.94 1700 1222 6.07 1.24 0.58 16.16 71.0 63.7 120.0 5.72 3.67
WR068 7 5.35 12.38 –4.73 2100 1229 8.50 1.29 0.63 22.40 71.0 62.5 127.5 5.82 3.74
WR090 7 5.23 10.68 –4.83 2053 1223 8.71 1.25 0.63 21.80 71.0 63.4 128.5 5.84 3.76
WR053 8 5.15 9.70 –4.94 1800 859 7.12 1.04 0.68 11.32 50.0 49.1 85.0 5.12 3.03
WR057 8 5.30 11.64 –4.84 1787 1088 6.42 1.17 0.62 14.15 63.0 58.2 106.3 5.51 3.44
WR060 8 5.40 13.19 –4.65 2300 1093 10.04 1.19 0.68 21.10 63.0 57.7 115.9 5.66 3.55
WR135 8 5.28 11.35 –4.82 1343 1087 5.18 1.34 0.55 16.73 63.0 54.5 103.6 5.46 3.47
WR059 9 4.90 7.29 –5.13 1300 688 5.93 1.01 0.65 9.31 40.0 39.7 65.7 4.67 2.65
WR065 9 5.12 9.37 –4.97 1300 687 5.22 1.02 0.65 8.35 40.0 39.6 63.8 4.62 2.59
WR069 9 5.20 10.30 –4.98 1089 688 3.50 1.03 0.61 6.02 40.0 39.5 59.1 4.49 2.48
WR080 9 4.95 7.71 –5.01 1600 773 8.66 1.04 0.67 13.79 45.0 44.2 80.2 5.02 2.98
WR081 9 5.15 9.70 –4.71 1600 773 10.90 1.14 0.67 20.88 45.0 42.2 84.6 5.11 3.09
WR088 9 5.25 10.94 –4.81 1500 689 6.45 1.03 0.69 9.99 40.0 39.4 66.3 4.69 2.63
WR092 9 5.22 10.55 –4.81 1121 775 5.14 1.15 0.59 11.50 45.0 42.0 72.9 4.85 2.88
WR095 9 5.20 10.30 –4.75 1900 774 10.57 1.06 0.71 16.65 45.0 43.8 83.1 5.08 2.99
WR103 9 5.14 9.59 –4.84 1190 773 6.06 1.13 0.61 12.88 45.0 42.2 75.4 4.91 2.94
WR106 9 5.15 9.70 –4.87 1100 773 5.15 1.14 0.59 11.33 45.0 42.2 73.1 4.86 2.89
WR117 9 5.35 12.38 –4.45 2000 969 15.72 1.44 0.67 48.68 56.0 46.6 114.9 5.64 3.60
WR119 9 5.20 10.30 –4.76 1300 774 6.99 1.15 0.63 14.65 45.0 42.0 77.4 4.96 2.96
WR121 9 5.20 10.30 –4.83 1100 774 5.01 1.15 0.59 11.20 45.0 42.0 72.6 4.85 2.88
WR011 8 5.00 8.30 –5.00 1550 988 7.61 1.14 0.61 16.12 57.0 53.4 100.7 5.41 3.39
WR014 7 5.38 12.82 –4.70 2055 1385 8.39 1.50 0.60 31.45 80.0 65.4 144.9 6.05 3.98
WR023 6 5.30 11.45 –4.80 2280 1284 8.89 1.25 0.64 21.83 75.0 67.0 135.8 5.93 3.83
WR090 7 5.50 15.00 –4.60 2045 1241 7.97 1.39 0.62 24.74 71.0 60.2 125.8 5.80 3.72
WR103 9 4.90 7.38 –5.00 1140 831 7.04 1.17 0.58 16.54 48.0 44.5 84.3 5.10 3.16
WR111 5 5.30 11.33 –4.80 2300 1551 8.97 1.50 0.60 33.87 91.0 74.3 167.5 6.30 4.22
WR135 8 5.20 10.50 –4.90 1400 1094 5.46 1.27 0.56 15.58 63.0 56.0 104.6 5.48 3.47
WR154 6 5.02 8.23 –5.00 2280 1365 10.69 1.25 0.63 26.64 80.0 71.6 152.3 6.13 4.05
WR111 5 5.45 13.99 –4.90 2200 1476 4.82 1.20 0.60 11.58 85.0 77.6 135.2 5.93 3.80
BR007 4 5.44 14.09 –4.80 2500 1578 7.06 1.31 0.61 19.90 90.0 78.5 155.6 6.17 4.04
BR008 4 5.42 13.33 –4.90 2300 1466 5.40 1.19 0.61 12.62 85.0 77.8 138.2 5.96 3.84
BR010 4 5.70 20.04 –4.50 3000 1620 9.29 1.46 0.65 30.34 90.0 74.6 163.8 6.26 4.09
BR043 4 5.65 18.24 –4.50 2900 1591 10.08 1.53 0.65 36.56 90.0 72.7 167.2 6.29 4.15
BR050 4 5.68 19.69 –4.40 3200 1534 13.06 1.52 0.68 44.43 85.0 69.0 166.5 6.29 4.12
BR074 4 5.44 13.71 –4.80 2600 1470 7.34 1.23 0.64 17.46 85.0 76.6 147.0 6.07 3.93
SND2 2 5.30 11.12 –5.00 4100 2533 10.09 1.47 0.62 35.28 150.0 123.7 281.9 7.20 5.00

Notes. Empirical estimates from Sect. 4.1. Columns 1–8 indicate names, spectral subtypes, and empirical stellar parameters for putatively single WC/WO stars compiled from various sources in the literature (top: Galactic WC/WO stars from Sander et al. 2012; middle: Galactic WC stars from Hillier & Miller 1999; De Marco et al. 2000; Dessart et al. 2000; Smartt et al. 2001; Crowther et al. 2006; Gräfener et al. 2002; bottom: LMC WC/WO stars from Crowther et al. 2002, 2000). Typical error margins given by Sander et al. (2012) are Δlog  (L) = ± 0.3; ; Δlog  (T⋆) = ± 0.05. A clumping factor D = 10 has been adopted for all objects. Columns 9–16 indicate wind parameters that are directly deduced from the empirical stellar parameters, as outlined in Sect. 4.1. Pr and Pg denote the radiation and gas pressure at the sonic point obtained from this method.

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