\begin{table}%t1
\caption{Astrophysical parameters for PV~Cas (solar, K units).}\label{tab1}
%\centerline
 {\small \begin{tabular}{lll}
\hline \hline
 & Primary & Secondary \\
 \hline
Mass & $2.81 \pm 0.05$ & $2.76 \pm 0.05$ \\
Radius & $2.297 \pm 0.021$ & $2.256 \pm 0.016$ \\
$\log~ T_{\rm eff}$& 4.009 &4.008\\
Observed rotational velocity & 65~km~s$^{-1}$ (both components) \\
TR & $0.989 \pm 0.002$\\
log  $\overline {k_{2 {\rm obs}}}$&  --$2.452 \pm 0.023$\\
\hline  
\end{tabular}}
\medskip       
Popper (\cite{Popper1987}), Barembaum \& Etzel (\cite{Barembaum1995}), Svaricek et~al. (\cite{Svaricek2008}).
\end{table}