Table 2
Density contrasts, masses, and radii of the core and the outskirts regions of the A2142 supercluster.
| (1) | (2) | (3) | (4) | (5) | (6) |
|
|
|||||
| D8 | Mdyn | Mest | R | Δρdyn | Δρest |
| [1015h-1M⊙] | [1015h-1M⊙] | ||||
|
|
|||||
| Full scl | 2.9 | 4.3 | |||
| ≥ 17 | 1.2 | 1.4 | 6 | 17.9 | 20.9 |
| ≥ 13 | 1.7 | 2.1 | 8 | 10.5 | 13.0 |
| ≥ 8 | 2.2 | 3.0 | 10 | 7.1 | 9.7 |
| Main (≥5) | 2.5 | 3.7 | 13 | 3.6 | 5.3 |
| Main+env | 2.8 | 4.6 | 15 | 2.6 | 3.2 |
|
|
|||||
| (2) | 0.10 | 0.18 | 2.5 | 20.4 | 36.7 |
| (3) | 0.30 | 0.42 | 2.5 | 61.2 | 85.7 |
Notes. Columns are as follows: (1): Global luminosity density D8 of the regions (in units of mean luminosity density, ℓmean = 1.65 × 10-2
). Main body of the supercluster is defined as D8 ≥ 5, without group regions 2 and 3. Main+env denotes main body of the supercluster without group regions 2 and 3, but with local neighbourhood of the main body; see text for details); (2): the total dynamical mass of groups (in case of groups with 2 and 3 member galaxies we use median mass); (3): the total estimated mass of a region (including faint groups and intracluster gas, see text); (4): radius of the region (in h-1 Mpc); (5): density contrast of the region according to the dynamical mass; (6): density contrast of the region according to the estimated mass.
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