\begin{table}%t4
\caption{\label{sandint4}Summary of our best-match model parameters.}
\par
%\centering
\par
\begin{tabular}{lll}
\hline\hline\noalign{\smallskip}
Parameter & \obj & \multicolumn{1}{c}{$Z\ugd$}\\
\hline\noalign{\smallskip}
Spectrum                 & black body\\
Stellar mass, $M$        & 0.595 \Msun\\
Model age, $t$           & $8982$ yr\\
Stellar effective temperature, \teff & 138~049 K\\
Stellar luminosity, $L$  & $2994~\Lsun$\\
Central star wind, $L_{\rm wind}=0.5\dot{M}v^2_\infty$ & \multicolumn{1}{c}{$\dot{M}\propto Z^{0.69}$, $v_\infty\propto Z^{0.13}$}\\
AGB wind                 & \multicolumn{2}{l}{$\rho\propto r^{-3.25}$, $v = 10~\kms$,}\\
                         & \multicolumn{2}{l}{$n_{r=3\times10^{16}~{\rm cm}} = 1$~$\times$ $10^5~\ccm$}\\ 
\hline 
Abundances, $\epsilon_i = \log~(n_i/n_{\rm H})+12$:\\
\quad He & 10.88 & 11.04\\
\quad C  & \xx7.90  & \xx8.89 \\
\quad N  & \xx7.47:  & \xx8.39 \\
\quad O  & \xx6.74  & \xx8.65 \\
\quad Ne & \xx6.96  & \xx8.01 \\
\quad S  & [5.94]   & \xx7.04 \\
\quad Cl & [4.22]   & \xx5.32 \\
\quad Ar & [5.36]   & \xx6.46 \\ 
\hline
Distance, $d$            & 18~kpc\\
Visual magnitude, $m_{\rm V}$ & 19.5 mag\\
Nebular density, $\langle\Ne\rangle$ & 65 \ccm\\
Nebular temperature, $\langle\Te\rangle$ & 21~100 K\\
Nebular \hb-luminosity, $L(\hb)$ & 0.193 \Lsun\\
Model HWHM velocity, $V_{\rm HWHM}$ & $41.8~\kms$\\ 
\hline
\end{tabular}
\tablefoot {The element abundances $\epsilon_{i}$ are used as input in the calculation of our radiation hydrodynamic models; the values of S, Cl, and Ar are not fitted, but only scaled. $Z\ugd$~denotes the mean abundance distribution in the Galactic disk (cf.~Sect.~\ref{sec:discphys}).}
\end{table}