Fig. 6.
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Same as Fig. 5, but with free v sin i. The model was converged starting with the parameters from Table 4. The best fit model was with χVIS2 = 6.928. The free parameters were i = 58.3°, m = 28.0 M⊙, Ω = 301.5 deg, and Prot = 4.26 d. The fixed parameters were T = 27 000 K and γ = 25.9 km s−1. The derived parameters are v sin i = 277 km s−1, v = 325 km s−1, Requiv = 27.37 R⊙, Rpole = 22.29 R⊙, Requ = 33.61 R⊙, θequiv = 0.667 mas, θpole = 0.540 mas, and θequ = 0.814 mas. Again, the star is close to the critical rotation, but with an oblique orientation. This model better explains the visibilities along different baselines B/λ. The meaning of Ω is illustrated.
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