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Table 1

Mean NCRs (NCR) of different stellar types in the LMC at a simulated distance of 20 and 35 Mpc, with accurate coordinates (“acc”) and simulated positional errors of σ = 0.5 arcsec (“err”).

20 Mpc 35 Mpc
Stellar type N NCR(acc) NCR(err) NCR(acc) NCR(err)

Random 250 0.095 ± 0.007 0.101 ± 0.006
B2V (8 M) 92 0.486 ± 0.030 0.472 ± 0.030 0.524 ± 0.030 0.513 ± 0.029
B1V (13 M) 135 0.530 ± 0.024 0.509 ± 0.025 0.537 ± 0.023 0.529 ± 0.023
B0V (17.5 M) 147 0.627 ± 0.022 0.610 ± 0.023 0.631 ± 0.022 0.603 ± 0.022
O9V (20 M) 117 0.692 ± 0.022 0.658 ± 0.023 0.646 ± 0.023 0.615 ± 0.023
O8V (25 M) 89 0.667 ± 0.028 0.637 ± 0.029 0.623 ± 0.030 0.594 ± 0.030
O7V (31 M) 52 0.719 ± 0.027 0.685 ± 0.029 0.678 ± 0.030 0.645 ± 0.031
O6V (37 M) 48 0.742 ± 0.031 0.711 ± 0.034 0.706 ± 0.035 0.673 ± 0.036
O5V (44 M) 13 0.805 ± 0.065 0.776 ± 0.060 0.785 ± 0.061 0.755 ± 0.063
O4V (53 M) 14 0.820 ± 0.073 0.784 ± 0.075 0.792 ± 0.085 0.745 ± 0.083
O3V (64 M) 12 0.961 ± 0.027 0.931 ± 0.030 0.952 ± 0.034 0.911 ± 0.037
RSG 543 0.182 ± 0.010 0.180 ± 0.010 0.229 ± 0.010 0.228 ± 0.010
RSG (log L/L< 4.6) 361 0.155 ± 0.011 0.152 ± 0.011 0.196 ± 0.011 0.196 ± 0.011
RSG (log L/L ≥ 4.6) 182 0.236 ± 0.018 0.239 ± 0.018 0.295 ± 0.017 0.290 ± 0.017
RSG (log L/L ≥ 4.8) 76 0.267 ± 0.031 0.268 ± 0.031 0.321 ± 0.029 0.321 ± 0.029
YSG 109 0.331 ± 0.029 0.328 ± 0.029 0.387 ± 0.028 0.375 ± 0.028
YSG (log L/L ≥ 4.8) 37 0.373 ± 0.044 0.362 ± 0.044 0.417 ± 0.047 0.412 ± 0.044
SG B[e] 12 0.340 ± 0.086 0.342 ± 0.079 0.371 ± 0.083 0.375 ± 0.082
LBV 10 0.523 ± 0.082 0.511 ± 0.075 0.539 ± 0.085 0.527 ± 0.080
Classical LBV 3 0.774 ± 0.115 0.750 ± 0.086 0.785 ± 0.110 0.761 ± 0.096
Low-luminosity LBV 7 0.416 ± 0.077 0.409 ± 0.072 0.434 ± 0.087 0.427 ± 0.081
WN 94 0.561 ± 0.031 0.544 ± 0.032 0.575 ± 0.032 0.553 ± 0.032
Early WN 67 0.508 ± 0.035 0.490 ± 0.036 0.525 ± 0.036 0.503 ± 0.036
Late WN 27 0.676 ± 0.058 0.663 ± 0.057 0.684 ± 0.059 0.665 ± 0.057
WN (no H) 45 0.515 ± 0.043 0.492 ± 0.044 0.517 ± 0.043 0.502 ± 0.043
Early WN (no H) 38 0.442 ± 0.039 0.419 ± 0.041 0.442 ± 0.039 0.430 ± 0.040
Late WN (no H) 7 0.847 ± 0.081 0.832 ± 0.073 0.866 ± 0.070 0.821 ± 0.076
(Early) WC 24 0.656 ± 0.045 0.641 ± 0.045 0.662 ± 0.048 0.632 ± 0.050

Notes. The indicative initial masses of main-sequence stars are from Weidner & Vink (2010) for O stars and from Cox (2000) for B stars.

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