\begin{table}%t3 \caption{\label{infall-para}Infall properties for Clump 14 and 16, i.e. the two main infall regions.} %\centerline {\small \begin{tabular}{lccccc} \hline \hline & $R$\tablefootmark{a} &$M$\tablefootmark{b} &$\langle n_{\rm H_2}\rangle$\tablefootmark{c} & $v _{\rm in}$\tablefootmark{d} & d$M$/d$t$\tablefootmark{e} \\ & [pc] &[$M_\odot$] &10$^5$ [cm$^{-3}$] &[km s$^{-1}$] &[$M_\odot$ yr$^{-1}$] \\ \hline Clump 14 & 0.52 & 4900 & 1.26 & 0.6 & $5.8\times 10^{-3}$ \\ Clump 16 & 0.615 & 3346 & 0.52 & 0.5 & $2.8\times 10^{-3}$ \\ \hline \end{tabular}} \tablefoot{\tablefoottext{a}{Equivalent radius of infall region.} \tablefoottext{b}{Mass from mm-continuum (see Table~2).} \tablefoottext{c}{Average H$_2$ density, derived from the mass given in Col.~2.} \tablefoottext{d}{Infall speed, determined from {\it Simline} modelling (Sect.~\ref{simline}).} \tablefoottext{e}{Mass infall rate $\dot {M} \approx M/t = M~ v_{\rm in}/R$.}} \end{table}