\begin{table}%t5
%\centering
\par
\caption{Observed fluxes and excesses of $\delta$~Vel compared to the Castelli \& Kurucz~(\cite{castelli03}) models. $N\sigma$ is the measured excess expressed in number of times the measurement uncertainty.}
\label{fluxes_delvel}
\begin{tabular}{lcccc}
\hline \hline\noalign{\smallskip}
Band & $\lambda$ ($\mu$m) & $F$ ($10^{-13}$ W/m$^2$/$\mu$m)   & $F/F_{\rm mod}$ (\%) & $N\sigma$ \\
\hline
{\it Aab+B} \\
PAH1 & 8.59 & $ 4.07 \pm 0.27  $ & $ 99 \pm 7$ & $-0.2$ \\
PAH2 & 11.25 & $ 1.38 \pm 0.12 $ & $ 98 \pm 9$ & $-0.3$ \\
NeII & 12.81 & $ 7.26 \pm 0.08 $ & $ 86 \pm 11$ & $-1.3$ \\
\hline
{\it Aab} \\
PAH1 & 8.59 & $ 3.69 \pm 0.27  $ & $ 98 \pm 7$ & $-0.2$ \\
PAH2 & 11.25 & $ 1.24 \pm 0.12 $ & $ 97 \pm 10$ & $-0.3$ \\
NeII & 12.81 & $ 0.67 \pm 0.07 $ & $ 88 \pm 11$ & $-1.1$ \\
\hline
{\it B} \\
PAH1 & 8.59 & $ 0.382 \pm 0.028  $ & $ 104 \pm 7$ & 0.5 \\
PAH2 & 11.25 & $ 0.138 \pm 0.014 $ & $ 109 \pm 10$ & 0.9 \\
NeII & 12.81 & $ 0.056 \pm 0.019 $ & $ 74 \pm 34$ & $-0.7$ \\
 \hline
\end{tabular}
\end{table}