\begin{table}%t3
\small
%\centering
\par
\caption{\label{SFRinizio}Beginning of the star formation in the disk after the halo-thick disk transition ($t_{\rm SFR}$).}
\begin{tabular}{cccc}
  \hline\hline
& 4 kpc   & 8 kpc &12 kpc\\
  \hline
  Beginning of SF in the disk& 1.1 Gyr  & 1.3 Gyr& 1.7 Gyr\\
% &  &  \\ 
 \hline
 \end{tabular} 
\end{table}