\begin{table}%t1
\caption{\label{tab:inimod}Parameters of our initial models.}
%\centering
\par
\begin{tabular}{ccccccc}
    \hline\hline \noalign{\smallskip}
    Model & 1 & 2 & 3 & 4 & 5 & 6 \\
    \hline
    $M_{\rm tot}$ & 0.936 & 1.004 & 1.080 & 1.164 & 1.293 & 1.3885 \\
    $M_{\rm core}$ & 0.810 & 0.920 & 1.025 & 1.125 & 1.280 & 1.3850 \\
    $M_{\rm sh}$ & 0.126 & 0.084 & 0.055 & 0.039 & 0.013 & 0.0035 \\
    $\rho_{{\rm c},~7}$ & 1.45 & 2.4 & 4.15 & 7.9 & 28 & 140 \\
    $\rho_{{\rm b},~5}$ & 3.7 & 4.0 & 4.5 & 6.1 & 6.4 & 8.7 \\
    \hline
  \end{tabular}
\tablefoot {$\rho_{{\rm c},~7}$ denotes the central density in units of $10^7~\gqcm$, $\rho_{{\rm b},~5}$~is the density at the base of the helium shell in units of $10^5~\gqcm$.  $M_{\rm tot}$,~$M_{\rm core}$, and~$M_{\rm sh}$ are the masses of the~WD, the~C/O~core, and the helium shell, respectively.  All masses are given in solar masses.}
\end{table}