Table 1
O-type stars in Trumpler-14.
| Name | SpT | LC | B | E(4405–5495) | Teff | log  / |
log L | Notes | Notes |
|---|---|---|---|---|---|---|---|---|---|
| (mag) | (mag) | (kK) | (dex) | (dex) | this work | MONOS | |||
| High-resolution spectra available | |||||||||
| HD 93129 AaAb (a) | O2 | If* | 7.8 | 0.514 | 45.6 ± 1.1 | 4.14 ± 0.11 | 6.38 ± 0.03 | SB1 | SB2/3 |
| HD 93129 B (a) | O3.5 | V((f))z | 9.0 | “ ” | 47.7 ± 1.8 | 4.11 ± 0.10 | 6.43 ± 0.05 | C | C |
| HD 93128 | O3.5 | V((fc))z | 9.2 | 0.529 | 49.3 ± 2.2 | 4.07 ± 0.18 | 5.78 ± 0.06 | C | C |
| HDE 303311 | O6 | V((f))z | 9.1 | 0.414 | 40.1 ± 0.7 | 3.89 ± 0.07 | 5.16 ± 0.02 | C | C |
| CPD -58 2611 | O6 | V((f))z | 9.9 | 0.562 | 39.8 ± 0.8 | 3.91 ± 0.09 | 5.24 ± 0.02 | C | SB1? |
| HD 93161 B (b) | O6.5 | IV((f)) | 8.7 | 0.530 | 37.1 ± 0.8 | 3.91 ± 0.13 | 5.74 ± 0.03 | C | SB1/2? |
| HD 93160 AB | O7 | III((f)) | 8.2 | 0.416 | 36.6 ± 0.7 | 3.79 ± 0.10 | 5.68 ± 0.02 | LPV | SB1? |
| HD 93161 A (b) | O7.5 | V | 8.6 | “ ” | – | – | – | SB2 | SB2 |
| Trumpler 14-9 | O8.5 | V | 10.1 | 0.455 | 36.7 ± 0.7 | 3.55 ± 0.11 | 5.05 ± 0.02 | C | VAR |
| HD 93249 A | O9 | III | 8.5 | 0.382 | – | – | – | SB2 | SB2 |
| High-resolution spectra not available in IACOB-OWN | |||||||||
| CPD -58 2620 | O7 | V((f))z | 9.4 | 0.407 | – | – | – | – | C |
| ALS 15204 | O7.5 | Vz | 11.5 | 0.787 | – | – | – | – | SB2 |
| Tyc 8626-02506-1 | O9 | V(n) | 11.5 | 0.591 | – | – | – | – | – |
| ALS 15207 | O9 | V | 11.1 | 0.635 | – | – | – | – | – |
| CPD -58 2625 | O9.2 | V | 11.1 | 0.661 | – | – | – | – | VAR? SB2? |
| CPD -58 2627 | O9.5 | V(n) | 10.4 | 0.483 | – | – | – | – | – |
| HDE 303312 | O9.7 | IV | 10.3 | 0.547 | – | – | – | – | Probable SB2 |
Notes. For ten stars, high-resolution spectra are available (two of them are SB2 stars), and seven stars are only listed in GOSC. Columns detail name, spectral class following GOSSS, B-magnitude, reddening parameter E(4405–5495), Teff, parameter 
, and luminosity, variability notes from this work, and from MONOS (Maíz Apellániz et al. 2019).
Teff and luminosity errors from GBAT χ2
distributions (see Holgado et al. 2018), and limited to 500 K (half of the step in the grid).
uncertainty from Teff and log gtrue error propagation. (a),(b)Only one entry for E(4405–5495) in Maíz Apellániz & Barbá (2018). C: Constant, LPV: Line profile variability, VAR: variability.
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