& 3.8$^{+1.0}_{-1.2}$\                                                                                                                                         
                  L1689B w & 4000 & 4$\times 10^{22}$ & 0.29 & 4.8$\times 10^{21}$ & 4.3 & 4.3$^{+1.0}_{-0.4}$ & 4.3$^{+0.3}_{-0.7}$\                                                                                                                                       
                   L310 & 8000 & 1.7$\times 10^{22}$ & 0.11 & 1$\times 10^{21}$ & 7.1 & 7.1$^{+0.3}_{-1.2}$ & 19.2$^{+1.1}_{-0.2}$\                                                                                                                                         
                    L328 & 5000 & 3$\times 10^{22}$ & 0.14 & 2.4$\times 10^{21}$ & 7.4 & 7.4$^{+6}_{-1.5}$ & 34.5$^{+0.9}_{-5.3}$\                                                                                                                                          
                     L429 & 2400 & 5$\times 10^{22}$ & 0.26 & 8$\times 10^{21}$ & 6.8 & 6.8$^{+0.2}_{-1.4}$ & 2.3$^{+1.3}_{-0.1}$\                                                                                                                                          
                    GF5 & 5000 & 2$\times 10^{22}$ & 0.26 & 2$\times 10^{21}$ & 7.2 & 9.1$^{+17.6}_{-2.5}$ & 70.8$^{+1.5}_{-16.6}$\                                                                                                                                         
  ------------- ----------------------------------------------------------------------------------------------------------------------- ---------------------------------- ----------- --------------------- ------------------ --------------------- --------------------- --

Notes to Table \[mm\]:

\(1) $R_{flat}$ is the radius of the flat inner part of the core column density profile (see WMA99 and Sect. \[coldensprof\]). For L1544, Oph D and L1689B, $R_{flat}$ was taken from the millimeter continuum measurements of WMA99 and corresponds to the geometrical average of the major and minor axes of the ellipse. For L1709A, L310, L328, L429 and GF5, $R_{flat}$ is the radius of the flat inner part of the ISOCAM profile.\
(2) $N_{H_{2}}^{flat}$ is the column density averaged over the flat inner region of the core of radius $R_{flat}$ as deduced from our millimeter continuum measurements (see section 