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Table 5
Spectral classification using the Conti-Mathys criterion and the Walborn & Fitzpatrick atlas.
| Stars | Combined spectra | Individual spectra | W&F atlas | Observational analysis |
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| Model E11 | O3 | O3 | O3-4 (IV)-V | O3V |
| Model E12 | O7.5I | O7I | O8-8.5 III-(V) | O8V |
| Model E21 | O5.5 | O4 | O5-6 (I)-III | O5.5I |
| Model E22 | O4 | O4 | O7-8 III-(V) | O7V |
| Model E31 | O6I | O5.5I | O6.5-7 III-(V) | O6.5V |
| Model E32 | O6.5I | O7I | O8.5 V | O8.5V |
| Model E41 | O8I | O8.5III | O9-9.5 (III)-V | O9III |
| Model E42 | O9III | O9.5V | O9.5-9.7 III-(V) | O9.7V |
| Model E51 | O6.5I | O7I | O7-8 III-(V) | O7III |
| Model E52 | O7I | O7I | O7.5-8.5 (III)-V | O7.5III |
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