Table 2
Number density ρ of ultramassive dense (M⋆> 1011M⊙, Σ > 2500 M⊙ pc-2) ETGs from z = 1.6 to ~0.
| z | N | ρ | σ ρ | Field |
| 10-5 Mpc-3 | 10-5 Mpc-3 | |||
|
|
||||
| 0.066–0.1 | 124 | 0.75 | 0.07 | SDSS |
| 0.2–0.4 | 13 | 2.6 | 0.9 | COSMOS |
| 0.4–0.6 | 14 | 1.9 | 0.5 | COSMOS |
| 0.6–0.8 | 39 | 3.6 | 0.7 | COSMOS |
| 0.8–1.0 | 79 | 4.7 | 0.8 | COSMOS |
| 0.95–1.25 | 3 | 2.9 | 1.6 | GOODS-South |
| 1.3–1.6 | 2 | 1.8 | 1.3 | GOODS-South |
| 1.26–1.6 | 6 | 3.81 | 1.7 | MUNICS |
Notes. Column 1: redshift range; Col. 2: number of massive dense ETGs; Col. 3: number density of ultramassive dense ETGs; Col. 4: error on the number density quoted; and Col. 5: field. The number density derived both in the SDSS and in the MUNICS field is a lower limit.
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