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Table 1.

Group parameters.

Group name Alt. group namesa α2000 b δ2000 b D c vgr d Ngal e log log Rvir σv h
[deg] [deg] [Mpc] [km s−1] (Mdyn/M) f (ML/M) g [Mpc] [km s−1]
NGC 1052 group LGG 71 40.107 −7.883 19 1240 − 1540 9 12.42 12.66 0.45 105.7
NGC 5866 group LGG 396 228.368 56.250 16 650 − 850 5 12.09 12.34 0.35 82.0
NGC 4631 group LGG 291, Coma I 187.645 30.372 9 520 − 820 12 12.36 12.62 0.43 100.5
NGC 3992 group UMaI N, LGG 258 177.431 53.648 20 640 − 1280 32 13.03 13.27 0.72 168.3

Notes. a see, e.g., Fouqué et al. (1992) and Garcia (1993); b luminosity-weighted group center coordinate; c distance adopted from NED; d group’s radial velocity range (see Sect. 2.2); e number of bright member galaxies (from Fouqué et al. 1992). f dynamical mass; g luminosity-based mass; h velocity dispersion from group member galaxies.

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