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Fig. 2


Tracks of the same models as those shown in Fig. 1, in the sHR diagram. While the ordinate is defined via the spectroscopically measurable quantities Teff and log g, its numerical value gives the logarithm of the luminosity-to-mass ratio, in solar units. The right-side ordinate scale gives the atmospheric Eddington factor for hot hydrogen-rich stars. The horizontal line at log L/ L ≃ 4.6 indicates the location of the Eddington limit. The dotted straight lines are lines of constant log g, as indicated.

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