\begin{table}%t4 \par \caption{\label{rapport_flux}$F_{30}$/$F_{13}$ indexes, and H$_2$ mass upper limits at 600~K.} %\centerline {\begin{tabular}{lccccccccccccccccc} \hline \hline \noalign{\smallskip} Star & $F_{30}$ / $F_{13}$ & & H$_2$ mass and upper \\ & & & limits at $T = 600$~K ($M_{\rm Jup}$) \\ \hline (This work)& & & \\ HD~142527 & 4.86 & & $<$4.1~$\times$~10$^{-3}$ \\ HD~169142 & 7.12 & & $<$7.5~$\times$~10$^{-3}$ \\ HD~150193A & 1.44 & & $<$9.6~$\times$~10$^{-3}$ \\ HD~163296 & 1.54 & & $<$8.5~$\times$~10$^{-3}$ \\ HD~100546 & 3.32 & & $<$2.9~$\times$~10$^{-2}$ \\ \hline \citep{klr08b}& & & \\ HD~98922 & 0.70 & & $<$7.1~$\times$~10$^{-2}$ \\ HD~250550 & 2.67 & & $<$1.2~$\times$~10$^{-1}$ \\ HD~259431 & 2.78 & & $<$3.1~$\times$~10$^{-2}$ \\ HD~45677 & \tablefootmark{(a)} & & \\ \hline \citep{Carmona08}& & & \\ UX~Ori & \tablefootmark{(a)} & & \\ HD~100453 & 5.41 & & $<$3.8~$\times$~10$^{-3}$ \\ HD~101412 & 0.92 & & $<$7.3~$\times$~10$^{-3}$ \\ HD~104237 & 1.28 & & $<$3.5~$\times$~10$^{-3}$ \\ HD~142666 & 1.55 & & $<$4.7~$\times$~10$^{-3}$ \\ %HD~319139 & 5.08 & & 5.6~$\times$~10$^{-3}$ \\ \hline \citep{Bitner08}& & & \\ 49~Cet & 2.31 & & $<$6.6~$\times$~10$^{-4}$ \\ %LkHa~225 & 1.97963 & 0.72 MWC~758 & 4.00 & & $<$5.3~$\times$~10$^{-3}$ \\ V892~Tau & 3.72 & & $<$1.9~$\times$~10$^{-2}$ \\ VV~Ser & 0.76 & & $<$1.5~$\times$~10$^{-2}$ \\ \hline \citep{klr09a}& & & \\ HD~97048 \tablefootmark{(b)} & 6.22 & & (1.6 $\pm$ 0.1) $\times$ 10$^{-2}$ \\ \hline \citep{Bitner07}& & & \\ AB~Aur \tablefootmark{(b)} & 4.21 & & (1.6 $\pm$ 0.47) $\times$ 10$^{-3}$ \\ \hline \end{tabular}} \tablefoot{\tablefoottext{a}{Spitzer data not available.} \tablefoottext{a}{masses of H$_2$ (not upper limits) because the S(1) has been detected.} We used distances and integrated fluxes values from the papers referenced in the table.} \end{table}