\begin{table}%t2
%\centering
\small 
\caption{\label{tab:PoWRmodelsABC}Parameters for the PoWR models as shown in Figs.~\ref{fig:pb8-optical_comparison}
and~\ref{fig:pb8-optical_panels}. Our final model is model B.}
\begin{tabular}{lrrrrrlllrr}
\hline\hline\noalign{\smallskip}
model   & \multicolumn{1}{c}{$\log R_{\rm t}$} 
        & \multicolumn{1}{c}{$\log\dot{M}$}  
        & \multicolumn{1}{c}{$T_*$} 
        & He & H  & C & N & O  
        & \multicolumn{1}{c}{$d$} 
        & \multicolumn{1}{c}{$E_{B-V}$} \\
        & \multicolumn{1}{c}{$[R_\odot]$}  
        & \multicolumn{1}{c}{$[M_\odot~{\rm a}^{-1}]$} 
        & \multicolumn{1}{c}{[kK]}    
        & \multicolumn{5}{c}{--- \% mass fraction ---} 
        & \multicolumn{1}{c}{[kpc]} & \multicolumn{1}{c}{[mag]}\\ 
\hline 
 A & 1.35         & $-6.89$ & 50    & 66 & 30 & 1   & 1.5 & 1   & 4.6 & 0.40\\
 B & 1.43         & $-7.07$ & 52    & 55 & 40 & 1.3 & 2   & 1.3 & 4.2 & 0.41\\
 C & 1.55         & $-7.20$ & 50    & 33 & 60 & 2   & 3   & 2   & 4.4 & 0.42\\
\hline
\end{tabular}
\end{table}