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Table A.1

Stellar and wind parameters obtained from quantitative analysis of our sample of O dwarfs.

VFTS Spectral type v sin i Teff ΔTeff log g1 log gc2 Δlog g3 Y(He)4 log Q Δlog Q log Comments6
[km s-1] [K] [K] [cgs] [cgs] [cgs]
014 O8.5 Vz 90 37100 600 3.91 – 0.10 <0.06 <−13.0 – – SBs
021 O9.5 IV 40 33800 900 3.90 3.90 0.10 0.10 <−13.0 – <27.9 SB?
065 O8 V(n) 165 37100 1100 4.06 4.08 0.16 0.10 <−13.0 – <27.9 ...
067 O9.5 Vz 40 35200 1100 4.12 4.12 0.19 0.08 <−13.0 – <27.6 SB?
074 O9 Vn 265 35100 1300 4.18 4.23 0.21 0.10 <−12.9 – <28.0 ...
089 O6.5 V((f))z 50 39700 700 4.02 4.02 0.12 0.13 <−13.3 – <27.6 ...
093 O9.2 III–IV 60 34700 500 3.87 3.87 0.10 0.10 −13.1 0.4 28.1 SBvs
096 O6 V((n))((fc))z 125 40100 300 3.90 3.91 0.10 0.09 −13.0 0.4 28.7 SBvs VM2
110 O6 V((n))z 175 39900 1000 3.86 3.88 0.10 <0.06 <−13.0 – <28.2 VM2?
117 O6: Vz 75 41300 1500 4.14 4.14 0.16 0.12 <−13.0 – <28.0 SB?
123 O6.5 Vz 65 40400 700 4.10 4.10 0.12 0.13 <−13.3 – <27.6 SB?
130 O8.5 V((n)) 170 36500 1300 4.09 4.11 0.19 0.08 <−13.0 – <28.4 ...
132 O9.5 Vz 40 35600 700 4.18 4.18 0.10 0.10 <−13.0 – <27.9 ...
138 O9 Vn 350 34600 900 4.10 4.20 0.14 0.10 <−13.0 – <27.9 SB2?
149 O9.5 V 125 35000 1400 4.12 4.13 0.24 0.12 <−13.0 – <27.9 ...
154 O8.5 V 55 37400 700 4.12 4.12 0.13 0.09 <−13.0 – <28.7 SBs
168 O8.5 Vz 40 37300 500 4.02 4.02 0.10 0.10 <−13.5 – <27.5 SB?
223 O9.5 IV 40 34800 500 4.02 4.02 0.10 0.09 <−13.1 – <28.2 SBvs
249 O8 Vn 300 36500 800 4.04 4.11 0.11 0.10 <−13.3 – <27.6 ...
250 O9.2 V((n)) 155 35400 800 4.12 4.14 0.15 0.09 <−13.0 – <28.0 ...
251 O9.5 IV 40 33700 600 4.01 4.01 0.10 0.10 <−13.1 – <27.8 SB?
252 O8.5 Vz 100 37000 500 4.21 4.22 0.10 0.11 <−13.0 – <27.9 ...
266 O8 V((f))z 40 38000 200 4.01 4.01 0.10 0.10 <−13.0 – <28.0 ...
280 O9 V((n)) 150 34400 600 3.82 3.85 0.10 0.10 <−13.4 – <27.5 ...
285 O7.5 Vnnn 600 35300 900 3.63 4.08 0.10 0.14 <−13.0 – <27.9 ...
290 O9.5 IV 40 34000 500 3.99 3.99 0.10 0.10 <−13.1 – <27.8 SB?
303 O9.5 IV 60 34700 500 4.36* 4.36 0.10 0.09 <−13.0 – <28.7 VM2
355 O4 V((n))((fc))z 135 43400 600 3.84 3.86 0.10 0.09 <−12.9 – <28.2 SB2 NC
356 O6: V(n)z 215 39300 1300 3.99 4.03 0.13 0.10 <−13.0 – <28.1 SB?
361 O8.5 V 70 36900 700 4.07 4.07 0.10 <0.06 <−12.7 – <28.8 ...
369 O9.7 V 40 33400 1200 4.10 4.10 0.18 <0.08 <−13.0 – <27.9 ...
380 O6-7 Vz 65 39100 700 4.13 4.13 0.10 <0.08 <−12.9 – <28.0 ...
385 O4-5 V((n))((fc)) 120 42900 1700 3.86 3.87 0.10 0.09 −12.5 0.2 28.5 SBs
392 O6-7 V((f))z 40 37600 800 3.87 3.87 0.10 0.10 −13.1 0.4 27.8 ...
398 O5.5 V((n))((f))z 65 41200 1000 4.03 4.03 0.10 <0.06 −12.6 0.2 28.9 SBvs
418 O5 V((n))((fc))z 135 43200 1700 4.09 4.10 0.13 0.09 <−13.0 – <28.1 SB?
419 O9: V(n) 145 33100 900 3.61 3.64 0.10 0.11 <−12.7 – <28.3 ...
470 O6: V((f))z 75 39300 600 3.93 3.94 0.10 0.10 <−13.0 – <27.7 ...
472 O6 Vz 40 40400 900 4.12 4.12 0.12 0.11 <−12.9 – <28.0 ...
483 O9 V 40 33700 900 4.09 – 0.11 0.11 −12.8 0.3 – SB?
484 O6-7 V((n)) 120 35700 700 3.67 3.68 0.10 <0.06 −12.5 0.2 28.7 ...
488 O6 V((f))z 55 40700 700 3.87 3.87 0.10 0.09 −12.8 0.3 28.2 ...
491 O6 V((fc)) 50 40400 800 3.84 3.84 0.10 0.09 −12.6 0.2 28.6 SB?
493 O9 V 200 37100 1000 4.28* 4.27 0.10 <0.07 <−13.0 – <28.5 ...
494 O8 V(n) 230 38900 1700 4.18 4.21 0.21 0.09 <−13.0 – <28.2 SB2?
498 O9.5 V 40 33200 800 4.12 4.12 0.15 0.09 <−13.0 – <28.3 ...
505 O9.5 V-III 100 34000 700 4.30* 4.27 0.10 <0.07 <−13.0 – <28.1 VM2?
511 O5 V((n))((fc))z 105 43700 1700 4.27* 4.25 0.11 0.10 <−13.0 – <28.6 SB1s
517 O9.5 V-III((n)) 120 33000 500 4.01 4.02 0.10 0.12 <−13.0 – <28.5 ...
521 O9 V(n) 150 34800 600 4.12 4.13 0.10 0.09 <−13.0 – <28.7 VM2
536 O6 Vz 40 41500 1500 4.24* 4.23 0.15 0.08 <−13.0 – <28.3 SB?
549 O6.5 Vz 110 39800 1200 4.04 4.05 0.16 0.09 <−13.0 – <28.0 SB?
554 O9.7 V 45 34100 800 4.30* – 0.10 <0.06 −12.7 0.3 – ...
560 O9.5 V 40 33600 1200 4.20 4.20 0.16 0.09 <−13.0 – <27.7 ...
582 O9.5 V((n)) 115 35000 800 4.29* – 0.10 <0.07 <−13.0 – – ...
592 O9.5 Vn 295 33600 1000 4.25* 4.28 0.13 <0.08 <−13.0 – <28.2 ...
597 O8-9 V(n) 210 35400 700 3.90 3.94 0.11 0.11 <−13.3 – <27.6 ...
601 O5-6 V((n))z 125 40300 500 3.93 3.94 0.10 0.09 <−13.0 – <28.5 ...
611 O8 V(n) 210 37400 900 4.09 4.13 0.14 0.10 <−13.3 – <27.6 ...
627 O9.7 V 50 33600 600 4.11 4.11 0.12 0.10 <−13.0 – <27.9 ...
635 O9.5 IV 60 34100 500 4.00 4.00 0.10 0.09 <−13.0 – <28.0 SBvs
638 O8.5 Vz 45 36900 500 4.20 4.20 0.10 0.10 <−13.0 – <27.8 ...
639 O9.7 V 65 33700 500 4.18 4.18 0.10 0.09 <−13.0 – <28.2 SB?
649 O9.5 V 105 34800 600 4.18 4.19 0.10 0.09 <−13.0 – <28.0 SB2
660 O9.5 Vnn 515 32300 1000 3.95 4.15 0.16 0.11 <−13.3 – <27.9 ...
663 O8.5 V 90 36500 1700 4.02 4.03 0.29 0.09 <−12.7 – <28.1 SB?
677 O9.5 V 40 35900 1100 4.24* 4.20 0.13 <0.06 −12.8 0.3 28.6 VM3
679 O9.5 V 40 33200 900 4.10 4.10 0.15 <0.06 <−12.7 – <28.3 SB?
704 O9.2 V(n) 240 34200 1500 3.98 – 0.22 0.09 <−12.7 – – SB?
706 O6-7 Vnnz 375 38000 1200 3.80 3.95 0.13 0.11 <−12.9 – <28.0 ...
710 O9.5 IV 60 35000 800 4.24* 4.24 0.12 0.09 <−13.0 – <27.8 SB?
716 O9.5 IV 105 33200 600 3.95 3.96 0.10 0.09 <−13.0 – <28.0 SBs
717 O9 IV 50 35000 500 3.89 3.89 0.10 0.09 <−13.0 – <28.2 SB?VM?
722 O7 Vnnz 405 36600 800 3.84 4.01 0.10 0.11 <−13.4 – <27.5 SB? NC
724 O7 Vnnz 370 37600 3300 3.78 3.93 0.41 0.19 <−13.0 – <27.9 NC
737 O9 V 50 37500 700 4.30* 4.30 0.10 0.08 −13.1 0.4 28.5 ...
746 O6 Vnn 275 39900 1200 3.86 3.92 0.10 0.08 −12.6 0.2 28.5 ...
751 O7-8 Vnnz 360 36000 1500 3.90 4.01 0.25 0.10 <−13.0 – <28.1 NC
761 O6.5 V((n))((f))z 110 40300 700 4.15 4.16 0.10 0.18 <−13.5 – <27.5 NC
768 O8 Vn 290 35100 1200 3.88 3.95 0.18 0.10 <−13.3 – <28.2 SB2? NC
770 O7 Vnn 350 37800 1100 3.95 4.06 0.15 0.10 <−13.0 – <28.0 ...
775 O9.2 V 40 35900 1300 4.14 4.14 0.20 0.12 <−13.0 – <27.9 SB? NC
778 O9.5 V 125 34200 1400 4.18 4.19 0.21 0.09 <−12.9 – <28.3 ...
849 O7 Vz 95 39800 600 4.16 4.17 0.11 0.11 <−13.4 – <27.6 NC
892 O9 V 40 35800 600 3.98 3.98 0.10 0.11 <−13.2 – <27.6 NC

Notes. (1) Cases with a particularly high gravity (log g > 4.2) are indicated with an asterisk. (2)  log gc = log  [g + (vsini)2/R] (see Herrero et al. 1992; Repolust et al. 2004).(3) Formal errors adopting a minimum value of 0.1 dex. (4)ΔY(He) = 0.02. (5) We adopt ΔlogDmom = 0.4 dex. (6) Relevant comments from Table 1 of Walborn et al. (2014): SB = spectroscopic binary (SB1 = single lined, SB2 = double lined); s = small-amplitude shift (10–20 km s-1); vs = very small-amplitude shift (<10 km s-1 ); SB? = stellar absorption displaced from nebular emission lines but no radial-velocity variation measured; SB2? = confirmed SB with possible second component or unconfirmed SB but with two components visible in the line of sight; VMn =  visual multiple of n components within the 1.̋2 Medusa fibre, as determined from the HST/WFC3 images; NC = no coverage in HST imaging.

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