Table 1: Derived parameters from the CS (2-1) observations. Sizes and masses assume a distance of 300 pc.
\begin{table} \begin{displaymath} \begin{array}{lrrrccccrcl} \hline\hline \n... ...\ \noalign{\smallskip } \hline \end{array} \end{displaymath} \end{table}
$^{\rm {1}}$
Gaussian fitted line center velocity at the peak position of the core.
$^{\rm {2}}$
$M_{\rm {vir}}=150\:D\:\Delta~v^2$ (Johansson et al. 1998).
$^{\rm {3}}$
$M_{\rm {CO}}=1.456\times10^{-13}~N_{\rm {C^{18}O}}~~(D_{\rm s}^2 +D_{\rm b}^2)$.
$^{\rm {4}}$
IRAS point sources and detected outflows that fall within the half intensity contour of the core emission.
The positions observed in the rarer isotopomers are also indicated.
a
Surveyed only in CS and HCO+. b Not detected in HCO+. c Not detected in HCN. d Detected only in CS.

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