\begin{table}%t1
\caption{\label{t:fe}Atomic parameters of the iron lines.}
%%\centerline

{\small
\begin{tabular}{l c c  c  c  c }
\hline\hline
Species& $\lambda$ & $\chi$$_l$ & log $\it {gf}$ & $EW$ (m\AA) & $EW$ (m\AA)    \\
       &           &            &            & CoRoT-2     & CoRoT-4        \\
\hline
Fe~{\sc i}&5044.22  &  2.85  &   $-2.043$    &   88.0   &  66.7   \\
&5198.72             &  2.22  &   $-2.176$    &          &  94.5   \\
&5242.49             &  3.63  &   $-1.130$    &  102.3   &  84.1   \\
&5322.05             &  2.28  &   $-2.900$    &   77.2   &  56.3   \\
&5638.27             &  4.22  &   $-0.809$    &   94.1   &  77.6   \\
&5731.77             &  4.26  &   $-1.124$    &   73.0   &  53.2   \\
&5806.73             &  4.61  &   $-0.893$    &   70.3   &  51.9   \\
&5852.22             &  4.55  &   $-1.185$    &   52.2   &  36.2   \\
&5855.08             &  4.61  &   $-1.530$    &   26.1   &         \\
&5856.09             &  4.29  &   $-1.568$    &   39.3   &         \\
&6027.06             &  4.08  &   $-1.190$    &   80.0   &  61.6   \\
&6056.01             &  4.73  &   $-0.500$    &   92.2   &  73.2   \\
&6079.01             &  4.65  &   $-1.010$    &          &  39.7   \\
&6089.57             &  5.02  &   $-0.884$    &   45.1   &  36.5   \\
&6151.62             &  2.18  &   $-3.300$    &   70.6   &  40.2   \\
&6157.73             &  4.07  &   $-1.240$    &   76.5   &  61.3   \\
&6159.38             &  4.61  &   $-1.860$    &          &         \\
&6165.36             &  4.14  &   $-1.500$    &   53.3   &  42.0   \\
&6180.21             &  2.73  &   $-2.635$    &   71.7   &  54.0   \\
&6188.00             &  3.94  &   $-1.635$    &   58.7   &  45.6   \\
&6200.32             &  2.61  &   $-2.400$    &   98.0   &  65.9   \\
&6213.44             &  2.22  &   $-2.592$    &  102.0   &  76.2   \\
&6226.74             &  3.88  &   $-2.070$    &   33.6   &         \\
&6229.24             &  2.84  &   $-2.880$    &   45.5   &         \\
&6265.14             &  2.18  &   $-2.574$    &  111.0   &  77.0   \\
&6270.23             &  2.86  &   $-2.588$    &   68.5   &  49.0   \\
&6380.75             &  4.19  &   $-1.320$    &   66.9   &  51.9   \\
&6392.54             &  2.28  &   $-3.933$    &   25.1   &         \\
&6498.94             &  0.96  &   $-4.632$    &   63.5   &  38.0   \\
&6627.55             &  4.55  &   $-1.480$    &   32.1   &         \\
&6703.57             &  2.76  &   $-3.027$    &   43.1   &  31.3   \\
&6726.67             &  4.61  &   $-1.050$    &   51.4   &         \\
&6750.16             &  2.42  &   $-2.621$    &   93.2   &  75.4   \\
&6752.71             &  4.64  &   $-1.230$    &   47.0   &  36.7   \\
&6786.86             &  4.19  &   $-1.900$    &   30.0   &  21.0   \\
Fe~{\sc ii}&5234.63 &  3.22  &   $-2.238$    &   96.4   & 100.8   \\
&  5991.38           &  3.15  &   $-3.529$    &          &  47.9   \\
&  6084.11           &  3.20  &   $-3.767$    &          &  33.3   \\
&  6149.25           &  3.89  &   $-2.726$    &   44.9   &  53.7   \\
&  6247.56           &  3.89  &   $-2.342$    &   64.5   &  72.2   \\
&  6369.46           &  2.89  &   $-4.134$    &   23.7   &         \\
&  6416.93           &  3.89  &   $-2.640$    &   43.1   &  57.0   \\
&  6432.69           &  2.89  &   $-3.564$    &   44.9   &  52.9   \\
&  7711.73           &  3.90  &   $-2.538$    &   49.8   &         \\
\hline                                                                                               \end{tabular}}                                                                                       \tablefoot{Column~1: element; Col.~2: wavelength (in \AA\ ); Col.~3: excitation energy of the lower energy level in the transition (in eV); Col.~4: oscillator strengths based
 on an inverse solar analysis.; Col.~5: $EW$ for CoRoT-2; Col.~6: $EW$ for CoRoT-4.}
\end{table}