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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