All Tables

Table 2: Hydrodynamical models of Cepheids.
Table 3: Linear relations between the amplitude of the velocity curves and the line depth (at minimum extension of the star), ${\Delta RV_c}= a_0 D + b_0$ are given for all stars, together with the $1\sigma$ uncertainty. The reduced $\chi ^2$ , defined as $\chi_{{\rm red}}^2=\frac{\chi^2}{N-\nu}$ with N the number of spectral lines and $\nu$ the number of degrees of freedom is also indicated.
Table 4: Linear relation between $f_{{\rm grad}}$ and the logarithm of the period: $f_{{\rm grad}} = S \log P + ZP$ for the Fe I 4896.439 Å spectral line.
Table 5: Derived projections factors for all stars computed from the decomposition presented in Eq. (2).
Table 1: Spectral lines used in this study.