\begin{table}%t2
\caption{\label{table_sizes}Derived characteristics of the resolved emission for simple geometric models.}\small
%\centerline
{
\begin{tabular}{lccc}
\hline\hline
Wavelength & 8 \micron & 10 \micron  & 12.5 \micron  \\
\hline
\noalign{\smallskip}
{\it FWHM}$^{{a}}$ [mas] & $28 \pm 2$ & $38 \pm 4$  & $49 \pm 4$ \\
\hspace{1.1cm} [AU] & $4.6 \pm 0.3$ & $5.5 \pm 0.6$ & $7.1 \pm 0.6$\\
$F_{\rm gauss} / F_{\rm tot}$ &  $0.82 \pm 0.02$ & $0.97 \pm 0.02$ & $0.89 \pm 0.02$\\
\noalign{\smallskip}
\hline
\noalign{\smallskip}
{\it FWHM}$^{{b}}$ [mas] & $19 \pm 5$ & $36 \pm 4$ & $43 \pm 8$ \\
\hspace{1.1cm} [AU] & $2.7 \pm 0.6$ & $5.2 \pm 0.6$ & $6.2 \pm 1.2$\\
\hline
\end{tabular}}
\par
\medskip
$^{a}$ Gaussian and unresolved emissions (lower limit of {\it FWHM} size).\\
$^{b}$ Pure Gaussian emission (lower limit of {\it FWHM} size).
\end{table}