Table 5.
Median values of the Dn(4000) index and stellar masses (log M*), and the fractions of galaxies with Dn(4000) ≥ 1.75 (f1.75), 1.35 < Dn(4000) ≤ 1.75 (f1.55), and Dn(4000) ≤ 1.35 (f1.35) for galaxies in the CB and SCl A2142 clusters and in their spheres of influence, R30.
(1) | (2) | (3) | (4) | (5) | (6) | (7) |
---|---|---|---|---|---|---|
ID | Ngalv | Dnmed | f1.75 | f1.55 | f1.35 |
![]() |
Clusters | ||||||
A2065 | 103 | 1.84 | 0.61 | 0.25 | 0.14 | 10.66 |
A2089 | 40 | 1.87 | 0.60 | 0.35 | 0.05 | 10.56 |
A2061 | 81 | 1.91 | 0.72 | 0.17 | 0.11 | 10.61 |
Gr2064 | 61 | 1.88 | 0.64 | 0.28 | 0.08 | 10.65 |
A2142 | 197 | 1.88 | 0.72 | 0.23 | 0.06 | 10.70 |
R30 | ||||||
A2065R30 | 210 | 1.75 | 0.50 | 0.35 | 0.15 | 10.60 |
A2089R30 | 23 | 1.73 | 0.48 | 0.48 | 0.04 | 10.72 |
A2061R30 | 109 | 1.80 | 0.54 | 0.34 | 0.12 | 10.64 |
Gr2064R30 | 48 | 1.73 | 0.50 | 0.29 | 0.21 | 10.57 |
A2142R30 | 49 | 1.80 | 0.53 | 0.27 | 0.20 | 10.59 |
Notes. Columns are as follows: (1): Cluster ID; (2): Number of galaxies in a cluster (with Mr = −19.6 mag); (3): Median value of the Dn(4000) index for galaxies in a cluster; (4–6): Fractions of galaxies with Dn(4000) ≥ 1.75 (f1.75), 1.35 < Dn(4000) ≤ 1.75 (f1.55), and Dn(4000) ≤ 1.35 (f1.35) in a cluster; (7): Median value of the stellar masses (log M*) of galaxies in a cluster.
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