Table 6: Group dynamical properties. $\sigma _{r}$, R, $H_{\rm o}t_{\rm c}$ and M/L are expressed in logarithmic values; mass and luminosity are given in solar units. All quantities for SCG0018-4854 and SCG0122-3819 have been estimated taking into account 5 member galaxies rather than four, as in the original catalog; for a more detailed explanation, see Sect. 3.5. The values in parenthesis for the $M_{\rm vir}$ and $M_{\rm isotropic}$ are the luminosity weighted mass estimates. The symbols follow Hickson et al. (1992).
Group name Scale $\sigma _{r}$ log(R) $H_{\rm o}t_{\rm c}$ $M_{\rm vir}$ $M_{\rm isotropic}$ L M/L
  (kpc/ $\hbox {$^\prime $ }$) (km s-1) (kpc)   $M_{\rm\odot}$ $M_{\rm\odot}$ $L_{\rm\odot}$  
SCG2159-3210 11.34 1.997 1.640 -1.649 $1.89\times 10^{12}$ $1.02\times 10^{12}$ $6.20\times 10^{10}$ 1.22
SCG2353-6101 19.50 2.379 1.925 -1.758 $1.58\times 10^{13}$ $1.14\times 10^{13}$ $3.57\times 10^{10}$ 2.50
SCG0018-4854 14.52 2.065 1.614 -1.735 $3.03\times 10^{12}$ $1.31\times 10^{12}$ $4.07\times 10^{10}$ 1.51
SCG0122-3819 16.67 2.392 2.292 -1.405 $4.19\times 10^{13}$ $1.81\times 10^{13}$ $9.78\times 10^{10}$ 2.27
SCG0141-3429 25.92 2.119 1.994 -1.418 $1.43\times 10^{13}$ ( $6.96\times 10^{13}$) $6.19\times 10^{12}$ ( $7.53\times 10^{13}$) $3.22\times 10^{10}$ 2.37
SCG0227-4312 22.81 2.452 2.383 -1.374 $1.27\times 10^{14}$ ( $3.98\times 10^{13}$) $4.60\times 10^{13}$ ( $4.30\times 10^{13}$) $1.44\times 10^{11}$ 2.47

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