\begin{table}%t2
\caption{Summary of the age estimates (in Myr).\label{tab2}}
%\centerline
 {\begin{tabular}{lrrr}
\hline
\hline
 Method           & Minimum& Age    &  Maximum \\
\hline 
 Log grav$^1$     &      3 &     15 &  30$^2$   \\
 CMD, parallax$^3$&      3 &      5 &   8   \\
 HRD, parallax$^3$&      3 &      8 &  20   \\
 Disk fraction    &      4 &      7 &  15   \\
 W(H$\alpha$)     &      4 &      7 &  15   \\
 W(Li)            &      5 &     10 &  15   \\
 A(Li)            &$\sim$3 &$\sim$8 &  15   \\
\hline
\end{tabular}}
\par
\smallskip
$^1$ Only for 2M1139 and 2M1207.
$^2$ Based on spectral synthesis, the upper limit for the age is 15~Myr,
with $T_{\rm eff}$~=~2550~K.
$^3$ Only for those having parallax.
\end{table}