Table 3.
Tremaine-Richstone statistics for different group samples with identical selection criteria.
| Sample | Size | T1 | T2 |
|---|---|---|---|
| CG4 | 78 | 0.34±0.03 | 0.60±0.05 |
| Control4B | 699 | 0.37±0.01 | 0.78±0.02 |
| Control4C | 704 | 0.29±0.01 | 0.65±0.02 |
| RG4 | 56 | 0.19±0.02 | 0.76±0.06 |
| D12 | 59 | 0.51±0.06 | 0.61±0.06 |
| S16 | 31 | 0.35±0.05 | 0.84±0.10 |
| Z20 | 14 | 0.16±0.05 | 0.80±0.18 |
| D18 | 117 | 0.35±0.03 | 0.66±0.05 |
| Z22 | 88 | 0.37±0.04 | 0.72±0.06 |
| L17 | 69 | 0.19±0.02 | 0.75±0.06 |
| T21 | 43 | 0.12±0.02 | 0.65±0.08 |
Notes. All samples are in fact subsamples of four galaxies having MBGG≤−21.81 and fewer than three magnitudes between the brightest and the faintest, with all galaxy redshifts between 0.005 and 0.0452. The errors were estimated from 10 000 bootstraps. The first five samples (D12: Díaz-Giménez et al. 2012; S16: Sohn et al. 2016; Z20: Zheng & Shen 2020; D18: Díaz-Giménez et al. 2018; Z22: Zandivarez et al. 2022 are designed to be compact, while the latter two (L17: Lim et al. 2017; T21: Tinker 2021) are not. The CG4s are selected from D18, but in the somewhat smaller Lim-Tempel region.
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