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Table 2.
Mean redshift, line-of-sight velocity dispersion, cluster radius, and cluster mass from the spectroscopic cluster galaxy sample (SCGS).
| SCGS all | SCGS E+S0 | |
|---|---|---|
| N | 286 | 212 |
 |
0.0177 ± 0.0002 | 0.0180 ± 0.0003 |
 (km s−1) |
5317 | 5399 |
| σv (km s−1) | 1163 ± 49 | 1107 ± 54 |
 |
0.0172 ± 0.0002 | 0.0175 ± 0.0002 |
 (km s−1) |
5160 | 5242 |
| σv, c (km s−1) | 1143 ± 48 | 1088 ± 53 |
| Rvir, 200 (Mpc) | 2.8 ± 0.1 | 2.7 ± 0.1 |
| Rvir, p (Mpc) | 2.4 ± 0.5 | 2.1 ± 0.4 |
| ℳvir, 200( 1015 ℳ⊙) | 2.6 ± 0.3 | 2.2 ± 0.3 |
| ℳvir, p( 1015 ℳ⊙) | 2.2 ± 0.5 | 1.8 ± 0.4 |
 ) |
2.7 ± 0.2 | 2.2 ± 0.2 |
Notes. ( * )Adopting kpm = 32/π for isotropic orbits (Heisler et al. 1985).
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