\begin{table}%t5 \caption{Output parameters of the position-velocity plot modeled emission for MM2.} %\centering \par %\footnotesize \begin{tabular}{lcl} %\noalign{\smallskip} \hline\hline\noalign{\smallskip} Parameter &Value &Fixed/free parameter and comments \\ \noalign{\smallskip} %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \hline\noalign{\smallskip} %Angular resolution ($''$) &$3.4$ &Fixed from beam\\ %Spectral resolution (\kms) &0.35 &Smoothed spec. res.\\ Disk central velocity (\kms) &$-43.0$ &Fixed from observed PA~=~40\degr\ pv-plot\\ Disk outer radius ($''$, adopted as reference radius) &$+5$ &Fixed from emission size\\ Disk inner radius ($''$) &$+1$ &Fixed: upper limit from SMA data (see main text)\\ Intensity power law index &$-1$ &Fixed following other studies of disk-like structures (see main text)\\ Infall velocity power law index &$-0.5$ &Fixed, free-fall\\ Rotation velocity power law index &$+1$ &Fixed, solid rigid rotation\\ \hline\noalign{\smallskip} Reference infall velocity (\kms) &$0.17\pm0.02$&Free: fitted in the PA~=~40\degr\ pv-plot\\ Reference rotation velocity (\kms)&$0.6\pm0.2$&Free: fitted in the PA~=~130\degr\ pv-plot, after fitting the ref. infall vel.\\ \hline \end{tabular} %\begin{list}{}{} %\item[$^{\rm a}$] $A$, as defined in the output parameter of the %\end{list} \label{tn2hpvinfrot} \end{table}