Table 1.
Data on rich groups in the A2142 supercluster with at least ten member galaxies.
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) |
|---|---|---|---|---|---|---|---|---|---|---|
| No. | ID | Ngal | RA (deg) | Dec (deg) | Dist. (h−1 Mpc) | DC (h−1 Mpc) | Rvir (h−1 Mpc) | Ltot (1010h−2L⊙) | Mdyn (1012h−1M⊙) | D8 |
| Main body | ||||||||||
| 1 | 10570 | 27 (31) | 238.53 | 27.47 | 268.6 | 4.4 | 0.53 | 51.3 | 60 | 13.7 |
| 2 | 3070 | 212 | 239.52 | 27.32 | 264.6 | 0.0 | 0.88 | 382.0 | 907 | 20.7 |
| 3 | 4952 | 54 (61) | 239.78 | 26.56 | 260.1 | 3.3 | 0.70 | 111.0 | 214 | 17.1 |
| 4 | 32074 | 11 | 240.11 | 26.71 | 262.4 | 3.3 | 0.28 | 15.7 | 60 | 19.9 |
| 5 | 35107 | 10 | 240.13 | 27.01 | 258.7 | 2.4 | 0.47 | 13.9 | 30 | 14.2 |
| 6 | 14960 | 27 (30) | 240.20 | 25.87 | 263.6 | 7.0 | 0.59 | 46.6 | 148 | 15.3 |
| 7 | 17779 | 20 | 240.38 | 26.16 | 261.1 | 6.0 | 0.40 | 35.1 | 104 | 16.4 |
| 8 | 6885 | 32 | 240.75 | 25.40 | 258.9 | 9.7 | 0.46 | 70.5 | 164 | 11.4 |
| 9 | 21183 | 21 | 240.83 | 26.95 | 265.0 | 5.4 | 0.34 | 36.5 | 61 | 15.2 |
| Tail | ||||||||||
| 10 | 20324 | 11 (12) | 240.95 | 24.95 | 259.7 | 12.0 | 0.45 | 17.4 | 78 | 10.4 |
| 11 | 10818 | 28 (32) | 241.23 | 24.52 | 259.6 | 14.1 | 0.53 | 51.3 | 105 | 9.3 |
| 12 | 14283 | 19 (25) | 241.90 | 23.21 | 260.3 | 20.9 | 0.40 | 34.4 | 65 | 7.3 |
| 13 | 10224 | 32 | 242.91 | 21.02 | 254.6 | 32.0 | 0.32 | 60.4 | 233 | 6.0 |
| 14 | 26895 | 12 | 243.08 | 20.77 | 254.8 | 33.2 | 0.41 | 16.5 | 49 | 5.9 |
Notes. Columns are as follows: (1): order number of the group; (2): ID of the group from Tempel et al. (2014b) (Gr 3070 correspond to the Abell cluster A2142); (3): number of galaxies in the group, Ngal. In parenthesis we give the total number of galaxies in a group, which takes into account also galaxies possibly missing from the group because of fibre collisions; (4)–(5): group centre right ascension and declination; (6): group centre comoving distance; (7): group distance from the centre of the cluster A2142 (for brevity, clustercentric distance); (8): group virial radius; (9): group total luminosity; (10): dynamical mass of the group assuming the NFW density profile, Mdyn; (11): luminosity-density value at the location of the group, D8, in units of the mean density as described in the text.
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