\begin{table}%t4
%\centering
\par
\caption{Widths of relevant emission lines from ISAAC Low-Res and optical spectroscopy.
The source name, reference line used for the measure, $FWHM$ in 
\AA, $FWHM$ in~km~s$^{-1}$, and
the threshold resolving power in~km~s$^{-1}$ are reported.\label{widths}}
\begin{tabular}{c c c c c}
\hline
\hline
Obj. & line & $FWHM$ & $FWHM$ & Threshold  \\
id. &  meas.& [\AA]& [km~s$^{-1}$] & velocity \\
\hline
s14 & H$_\beta$ & 11 & 481   & 300  \\
s19 &~H$_\alpha$& 261 & 4642 & 400 \\
s20 & H$_\beta$ & 10 & 443   & 300  \\
s23 & H$_\beta$ & 14 & 591   & 400  \\
s25 & H$_\beta$ & 10 & 390   & 200  \\
s27 &~H$_\alpha$ & 8 & 231   & 300  \\
s38 &~H$_\alpha$ & 32 & 612  & 250 \\
s39 &~H$_\alpha$ & 70 & 1200  & 450 \\
s40 &~H$_\alpha$+[N{\sc ii}] & 25 & 503  & 350 \\
s43 &~H$_\alpha$+[N{\sc ii}] & 50 & $<$1172 & -- \\
s55 &~H$_\alpha$+[N{\sc ii}] & 50 & $<$1299 & -- \\
s60 &~H$_\alpha$+[N{\sc ii}] & 18 & 368  & 300   \\
s62 &~H$_\alpha$+[N{\sc ii}] & 19 & 502  & 500   \\
s72 &~H$_\alpha$+[N{\sc ii}] & 84 & $<$2477 & -- \\
s79 &~H$_\alpha$+[N{\sc ii}] & 27 & 709    & 500 \\
s82 &~H$_\alpha$+[N{\sc ii}] & 26 & 703    & 500 \\
\hline
\end{tabular}
\end{table}