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Table A.2

MCMC results of sample of stars within NGC 346.

SSN ID Spectral Type T* log ɡ v sin i log L* E(B−V) Spec Mass Note
(Massey et al. 1989) (from T*) (kK) [cm s−2] (km s−1) [L] (M)
18 O6.5V O7.5V 35.6 ± 0.2 4.21 ± 0.06 130 ± 11 5.10 ± 0.05 0.12 ± 0.01 51.6 ± 7.3
22 O6.5V 38.3 ± 0.9 3.88 ± 0.16 110 ± 20 5.30 ± 0.05 0.12 ± 0.01 28.2 ± 10.1
31 O7.5V 36.2 ± 0.2 4.14 ± 0.04 58 ± 16 5.00 ± 0.05 0.13 ± 0.01 32.5 ± 2.6
32 B0V O8.5V 33.0 ± 0.2 4.37 ± 0.03 296 ± 8 4.80 ± 0.05 0.13 ± 0.01 50.5 ± 3.5 SB1
33 O8V O7.5V 35.5 ± 0.2 4.23 ± 0.05 124 ± 16 5.00 ± 0.05 0.14 ± 0.01 43.4 ± 4.9
34 O9.5V O8.5V 33.6 ± 0.1 4.19 ± 0.03 148 ± 13 5.00 ± 0.05 0.13 ± 0.01 49.3 ± 3.2
36 O8V O8.5V 33.6 ± 0.2 4.02 ± 0.08 140 ± 26 4.95 ± 0.05 0.12 ± 0.01 30.0 ± 5.4 SB1
40 B0V O9.0V 31.3 ± 0.4 4.09 ± 0.16 242 ± 25 4.80 ± 0.05 0.12 ± 0.01 32.5 ± 11.6
41 O7.5V O8V 34.4 ± 0.3 4.18 ± 0.07 174 ± 13 SB1
43 O8.5V 33.4 ± 0.2 4.28 ± 0.06 206 ± 21 4.80 ± 0.05 0.11 ± 0.01 39.0 ± 5.0 SB1
44 O8V O8.5V 33.4 ± 0.2 4.05 ± 0.04 100±7
46 O6V: O7.5V 36.2 ± 0.3 4.17 ± 0.07 288 ± 16 4.90 ± 0.05 0.14 ± 0.01 27.9 ± 4.6 SB1
50 O7V O7V 37.5 ± 0.4 3.93 ± 0.10 104 ± 12
55 O9.0V 31.4 ± 0.3 4.24 ± 0.07 261 ± 17 4.75 ± 0.05 0.14 ± 0.01 40.8 ± 6.6
56 O9.0V 31.8 ± 0.5 4.08 ± 0.11 189 ± 11
57 O9.0V 32.5 ± 0.6 4.14 ± 0.11 191 ± 40 4.85 ± 0.05 0.14 ± 0.01 35.3 ± 9.2
59 O8.5V 33.9 ± 0.8 4.28 ± 0.21 217 ± 36 4.70 ± 0.05 0.11 ± 0.01 29.8 ± 14.6
62 O9V O8V 34.3 ± 0.5 4.07 ± 0.10 197 ± 13 4.70 ± 0.05 0.11 ± 0.01 17.2 ± 3.8 SB1
77 O9.5V 31.0 ± 0.7 4.23 ± 0.08 293 ± 15
83 O9.0V 32.3 ± 0.3 3.95 ± 0.10 88 ± 12 4.50 ± 0.05 0.11 ± 0.01 10.6 ± 2.4 SB1
84 O9.5V 31.2 ± 0.4 4.21 ± 0.18 180± 81 4.55 ± 0.05 0.13 ± 0.01 24.6 ± 10.1
88 O8.5V 34.0 ± 0.2 4.11 ± 0.07 98 ± 14
100 O8.5V 33.9 ± 0.8 4.11 ± 0.15 65 ± 34
102 O9.0V 31.6 ± 0.5 4.26 ± 0.12 87 ± 41 4.45 ± 0.05 0.13 ± 0.01 20.8 ± 5.9
105 O9.0V 31.6 ± 0.4 4.17 ± 0.09 117 ± 24 4.40 ± 0.05 0.12 ± 0.01 15.0 ± 3.0
109 O9.0V 31.7 ± 0.6 4.05 ± 0.08 293 ± 19 4.50 ± 0.05 0.13 ± 0.01 14.4 ± 2.6
110 O8.5V 33.3 ± 0.4 4.17 ± 0.14 19±26 4.60 ± 0.05 0.17 ± 0.01 19.3 ± 6.1
122 O9.5V 31.2 ± 0.6 4.09 ± 0.14 128 ± 27 4.50 ± 0.05 0.12 ± 0.01 16.9 ± 5.4 SB1
142 O9.5V 30.8 ± 0.1 4.06 ± 0.04 87 ± 7
171 B0V 29.0 ± 1.2 4.16 ± 0.10 157 ± 31
177 B0.2V 28.9 ± 0.8 4.15 ± 0.12 161 ± 32 SB1
188 B0V 29.5 ± 1.3 4.12 ± 0.11 147 ± 46 4.10 ± 0.05 0.13 ± 0.01 8.8 ± 2.3
193 B0V 29.1 ± 0.6 4.18 ± 0.06 71 ± 33 4.10 ± 0.05 0.14 ± 0.01 10.7 ± 1.4
245 B1V 26.1 ± 0.9 4.14 ± 0.06 110± 32

Notes. (†)Following relation from Ramachandran et al. (2019). (‡)Calculated from the temperature, surface gravity, and luminosity results via the Stefan–Boltzmann law

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