\begin{table}%t2 \caption{\label{absorp.table}Absorption-line properties.} %\centering \par \begin{tabular}{c c c l l l } \hline\hline \noalign{\smallskip} Component & $V$ & $\Delta v$ & $\tau$ & $N_{\HI}$/$T_{\rm{S}}$ \\ & [km~s$^{-1}$] & [km~s$^{-1}$] & & \\ & (1) & (2) & (3) & (4) \\ \hline Nucleus & 550 & 18 & 0.83 & $2.74\times 10^{19}$ \\ Nucleus & 574 & 23 & 0.62 & $2.61\times 10^{19}$ \\ Nucleus & 592 & 20 & 0.26 & $9.52\times 10^{18}$ \\ Nucleus (shallow) & * & 400 & * & * \\ Jet & 550 & 19 & 0.64 & $2.23\times 10^{19}$ \\ Jet & 544 & 25 & 0.64 & $2.93\times 10^{19}$ \\ Cloud & 454 & 13 & 0.07 & $1.72\times 10^{18}$ \\ \hline \end{tabular} \tablefoot{(1) Velocity of the peak. (2) {\it FWHM} (3) Peak optical depth. (4)~\HI column density (cm$^{-2}$~K$^{-1}$).} \end{table}