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Fig. 5


Constraints on the orbit for a putative compact companion of HD 45314 resulting from our upper limit of 10 km s−1 on K. We assume amass of 20 M for the Oe star. In the left panel, we consider a 2.0 M companion, whereas the right panel corresponds to a 1 M companion. The blue, green, and red lines correspond to eccentricities of 0.0, 0.5, and 0.8. The vertical straight line corresponds to the adopted radius (8 R) of the Oe star and the associated Keplerian rotation period. The dashed vertical line corresponds to the minimum outer radius of the Be disk that we have taken here as 10 R* (see Sect. 5.4) and its associated Keplerian period. The hatched area indicates the part of the parameter space that is excluded from the upper limit on the RV amplitude.

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