All Figures

	Figure 1: Overall view of the adopted temperature scales in the spectral type vs. effective temperature diagram. Additionally, the measured spectral types and effective temperatures of the eclipsing binaries are shown (from Table 3). The error bar of V1174 Ori B is only a very rough estimate.
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In the text

Figure 2: The theoretical evolution of the radii of V1174 Ori A & B is compared to the observed values. We only show the cases with coeval solutions: a) BCAH98, underabundant and b) PS99. The dashed horizontal lines indicate the upper and lower limits of the radius measurements. Evolutionary tracks for the upper and lower limits of the dynamical mass measurements were interpolated in the indicated models (dots). Solid lines represent the parts of the interpolated tracks which are consistent with the observed radii. These span the possible age of the individual binary components. The hatched region represents the coeval solution of 9 Myrs.

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In the text

Figure 3: diagrams with the error bars of V1174 Ori A & B. Evolutionary tracks for the upper and lower limits of the dynamical mass measurements (Table 3) (dots) were interpolated in the indicated tracks. The dashed line shows the theoretical isochrone at the common age of 9 Myrs found in Sect. 3.2. a) In this case, the temperatures were adopted from Table 3. The effective temperature of V1174 Ori A is consistent with the corresponding theoretical tracks whereas the temperature of V1174 Ori B is not. b) Temperatures were derived with the giant scale of Perrin et al. (1998) and are inconsistent with the models.

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In the text