**Table 4:** Integrated intensities in K km s^-1 (all columns but Cols. 1, 2 and 4) at the resolutions used for the spectra in Figs. 1, 2. Column 2 gives galacto-centric distances $R_{\rm gal}$ in kpc. The calibration error is estimated to be $\sim$ $15\%$ . (The observed [C I] intensities at the center positions agree within 20% with previous data presented in Gerin & Phillips 2000; and Petitpas & Wilson 1998.) Column 4 lists [C I] luminosities in K km s^-1 kpc² in brackets, i.e. the intensities integrated over the 10'' JCMT beam.
$\begin{table} \par \begin {tabular}{lrrrrrrrrrr} \hline \hline ($\Delta \alph... ... (0.69) & 17.29 & 9.85 & 7.41 & 4.01 & 3.09 \\ \hline \end{tabular}\end{table}$