\begin{table}%t1
\caption{\label{table:fields}Description of the observed fields.}     
%\centering
\par
\begin{tabular}{c c c c c c}        
\hline\hline \noalign{\smallskip}            
IRAS\tablefootmark{a} 
    & RA(2000) & Dec(2000) & Total gas mass\tablefootmark{b} & Total mass in dense gas\tablefootmark{c} 
       & Cluster stellar mass\tablefootmark{d} \\    
source & & & ($M_{\odot}$) & ($M_{\odot}$) & ($M_{\odot}$) \\    
\hline                      
\object{IRAS08438--4340} (IRS16) & 08:45:35.8 & --43:51:00 & 99 & 105 & 103 \\   
\object{IRAS08448--4343} (IRS17) & 08:46:35.0 & --43:54:30 & 48 &  88 &  90 \\   
\object{IRAS08470--4243} (IRS18) & 08:48:47.7 & --42:54:22 & (\tablefootmark{e}) &  (\tablefootmark{f})   &  89 \\   
\object{IRAS08476--4306} (IRS20) & 08:49:26.6 & --43:17:13 & 13 &  21 &  70 \\   
\object{IRAS08477--4359} (IRS21) & 08:49:32.9 & --44:10:47 & 219 & 60 &  68 \\   
\object{IRAS08485--4419} (IRS22) & 08:50:20.7 & --44:30:41 & (\tablefootmark{e}) & (\tablefootmark{f})   & $>$38\tablefootmark{g}    \\   
\hline                                 
\end{tabular}
\tablefoot {\tablefoottext{a}{Also listed the nomenclature used by Liseau et~al.
(\cite{liseau});} \tablefoottext{b}{derived from CO(1--0) and $^{13}$CO(2--1) observations
by Elia et~al.\ (\cite{elia:07});}  \tablefoottext{c}{derived from continuum 1.2~mm
observations by Massi et~al.\ (\cite{massi:07});} \tablefoottext{d}{estimated by
Massi et~al.\ (\cite{massi:06});} \tablefoottext{e}{found CO(1--0) emission
(Liseau et~al.\ \cite{liseau});} \tablefoottext{f}{found a dense core at 1.2~mm
centred at the cluster (Massi, private comm.);} \tablefoottext{g}{inferred from
the data in Massi et~al.\ (\cite{massi:03}).}} 
\end{table}