\begin{table}%t6
%\centering
\par
\caption{\label{tab:lz}Evolution of the luminosity-metallicity relation for the wide and
deep samples. The reference relation is the one obtained by \citet{Lamareille:2004MNRAS.350..396L}
with 2dFGRS data and renormalized to the CL01 method. In each redshift range, we give the results of the ols bisector fit (slope and zero-point) and of the constant-slope fit (mean shift, see Fig.~\ref{fig:lz}), together with the mean redshift and magnitude, and the dispersion
of the relation. The metallicity shift is given in three cases: {\it a)}~using only star-forming galaxies; {\it b)} adding candidate star-forming galaxies; and {\it c)} also adding candidate AGNs.}
\small \begin{tabular}{lrrrrrrrr}
\hline \hline\noalign{\smallskip}
Sample & Slope & Zero-point & $z$ & $M_{{\rm AB}}(B)$ & \multicolumn{3}{r}{$\Delta\log({\rm O/H})^{L}$} & rms\\
 &  &  &  &  & \emph{a} & \emph{b} & \emph{c} & \\
\hline
\emph{reference} & $-0.31$ & $2.83$ &  &  &  &  &  & \\
\emph{wide} &  &  &  &  &  &  &  & \\
~$0.0<z<0.5$ & $-0.67\pm0.17$ & $-4.60\pm3.4$ & $0.31$ & $-19.99$ & $\mathit{-0.08}$ & $-0.10$ & $\mathit{-0.10}$ & $0.23$\\
~$0.5<z<0.7$ & $-0.75\pm0.08$ & $-6.67\pm1.6$ & $0.59$ & $-20.53$ & $\mathit{-0.39}$ & $-0.44$ & $\mathit{-0.45}$ & $0.23$\\
~$0.7<z<0.9$ & $-0.64\pm0.21$ & $-5.01\pm4.4$ & $0.77$ & $-21.22$ & $\mathit{-0.58}$ & $-0.65$ & $\mathit{-0.70}$ & $0.24$\\
\emph{deep} &  &  &  &  &  &  &  & \\
~$0.0<z<0.5$ & $-0.90\pm0.45$ & $-8.28\pm8.61$ & $0.30$ & $-18.99$ & $\mathit{0.17}$ & $0.15$ & $\mathit{0.15}$ & $0.28$\\
~$0.5<z<0.7$ & $-0.41\pm0.06$ & $0.50\pm1.29$ & $0.59$ & $-19.67$ & $\mathit{-0.20}$ & $-0.24$ & $\mathit{-0.25}$ & $0.27$\\
~$0.7<z<0.9$ & $-0.87\pm0.41$ & $-8.89\pm8.20$ & $0.76$ & $-20.05$ & $\mathit{-0.24}$ & $-0.32$ & $\mathit{-0.39}$ & $0.29$\\
\hline
\end{tabular}
\end{table}