Table 1.
Properties of the HCGs.
| Phase | HCG | RA | Dec | Vsys | σv | Dist. | Mvir | rvir | N |
|---|---|---|---|---|---|---|---|---|---|
| (J2000) | (km s−1) | (km s−1) | (Mpc) | (1012 M⊙) | (kpc) | ||||
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | |
| 2 | 16 | 02:09:31.97 | –10:09:25.67 | 3977 | 98.9 | 49 | 2.2 ± 1.8 | 268.8 ± 73.7 | 5 |
| 31 | 05:01:39.27 | –04:15:45.63 | 4068 | 50.1 | 53 | 0.1 ± 0.1 | 103.1 ± 28.7 | 5 | |
| 91 | 22:09:09.59 | –27:47:36.70 | 7195 | 190.4 | 92 | 4.2 ± 1.9 | 332.1 ± 49.3 | 4 | |
| 3 | 30 | 04:36:24.21 | –02:50:42.39 | 4645 | 105.0 | 61 | 1.9 ± 0.5 | 255.0 ± 21.1 | 4 |
| 90 | 22:02:04.47 | –31:56:17.88 | 2635 | 109.9 | 33 | 1.5 ± 0.6 | 237.9 ± 29.6 | 4 | |
| 97 | 23:47:23.91 | –02:18:43.08 | 6579 | 342.2 | 85 | 23.5 ± 1.9 | 591.1 ± 16.2 | 5 | |
Notes. Columns list: (1) the HCG phase; (2) the HCG group ID; (3) the J2000 co-ordinates as computed from this work (see Sect. 3.3); (4) the heliocentric systemic velocity from Jones et al. (2023); (5) the group’s velocity dispersion; (6) the group’s distance from Jones et al. (2023); (7) the virial mass of the group; (8) the virial radius of the group based on its velocity dispersion; (9) the number of group members considered. See text for details on derived properties.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.