\begin{table}%t6
  %\centering
\par
  \caption{\label{predictions_HIFI}Predictions of the line fluxes (after subtraction of the continuum) of the water lines observable with the Herschel spectrometer HIFI.}
  \begin{tabular}{cccc}
    \hline   \hline\noalign{\smallskip}
HIFI range     &   & $X_{\rm in}$(H$_2$O) = $2\times10^{-6}$ & $X_{\rm in}$(H$_2$O) = $5\times10^{-8}$    \\ \hline
   Transition  & Frequency  & Flux                    & Flux     \\
               & (GHz)      & (K Km s$^{-1}$)         & (K Km s$^{-1}$) \\ \hline
  1$_{ 1 0} \rightarrow $ 1$_{ 0 1}$  &       557.0 &   32 &   32 \\
  5$_{ 3 2} \rightarrow $ 4$_{ 4 1}$  &       620.7 &  0.31 &  0 \\
  2$_{ 1 1} \rightarrow $ 2$_{ 0 2}$  &       752.0 &   23 &   23 \\
  4$_{ 2 2} \rightarrow $ 3$_{ 3 1}$  &       916.2 &  0.04 &  0.04 \\
  2$_{ 0 2} \rightarrow $ 1$_{ 1 1}$  &       987.9 &   37 &   37 \\
  3$_{ 1 2} \rightarrow $ 3$_{ 0 3}$  &      1097.3 &   26 &   26 \\
  1$_{ 1 1} \rightarrow $ 0$_{ 0 0}$  &      1113.4 &   46 &   46 \\
  7$_{ 2 5} \rightarrow $ 8$_{ 1 8}$  &      1146.6 &  0.04 &  0 \\
  3$_{ 1 2} \rightarrow $ 2$_{ 2 1}$  &      1153.1 &   34 &   34 \\
  6$_{ 3 4} \rightarrow $ 5$_{ 4 1}$  &      1158.3 &  1.0 &  0 \\
  3$_{ 2 1} \rightarrow $ 3$_{ 1 2}$  &      1162.9 &   13 &   11 \\
  4$_{ 2 2} \rightarrow $ 4$_{ 1 3}$  &      1207.6 &  1.1 &  1.1 \\
  2$_{ 2 0} \rightarrow $ 2$_{ 1 1}$  &      1228.8 &  7.6 &  7.6 \\
  5$_{ 2 3} \rightarrow $ 5$_{ 1 4}$  &      1410.7 &  5.7 &  2.1 \\
  6$_{ 4 3} \rightarrow $ 7$_{ 1 6}$  &      1574.2 &  0.10 &  0 \\
  4$_{ 1 3} \rightarrow $ 4$_{ 0 4}$  &      1602.2 &  2.2 &  2.2 \\
  2$_{ 2 1} \rightarrow $ 2$_{ 1 2}$  &      1661.0 &   40 &   37 \\
  2$_{ 1 2} \rightarrow $ 1$_{ 0 1}$  &      1669.9 &   66 &   67 \\
  4$_{ 3 2} \rightarrow $ 5$_{ 0 5}$  &      1713.9 &  2.1 &  0.1 \\
  3$_{ 0 3} \rightarrow $ 2$_{ 1 2}$  &      1716.8 &   56 &   56 \\
  7$_{ 3 4} \rightarrow $ 7$_{ 2 5}$  &      1797.2 &  2.2 &  0.1 \\
  5$_{ 3 2} \rightarrow $ 5$_{ 2 3}$  &      1867.7 &  4.6 &  0.9 \\
  6$_{ 3 4} \rightarrow $ 7$_{ 0 7}$  &      1880.8 &  0.41 &  0 \\
  8$_{ 4 5} \rightarrow $ 7$_{ 5 2}$  &      1884.9 &  0.09 &  0 \\
  3$_{ 3 1} \rightarrow $ 4$_{ 0 4}$  &      1893.7 &  0.02 &  0.02 \\
 &  &  &  \\ \hline
  \end{tabular}
\tablefoot{The third (fourth) column reports the predictions computed assuming that the inner H$_2$O abundance  is equal to $2\times10^{-6}$ ($5\times10^{-8}$) and the outer H$_2$O abundance is $2.5\times10^{-7}$, for the Shu-like model best-fit.}
  \end{table}