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Table 2.

Number of galaxies per bin of substructure area and redshift.

Substructures Number of galaxies
[kpc2] 1 < z < 2 2 < z < 3 3 < z < 4
Optimal detection
1.3 < S < 4 15 622 6552 2257
4 < S < 13 11 092 3853 1017
13 < S < 40 5730 1227 224
1.3 < S < 40 20 605 8610 2850

Intrinsic detection
1.3 < S < 4 4252 3500 1990
4 < S < 13 2080 1814 835
13 < S < 40 434 444 177
1.3 < S < 40 5298 4600 2502

All galaxies 26 000 14 823 6726

Notes. The number of galaxies with substructures varies depending on the detection method used. Given that galaxies may host multiple types of substructures, the sum of the three bins 1.3 < S < 4, 4 < S < 13, and 13 < S < 40 is larger than the last one with 1.3 < S < 40. The last row provides the total number of galaxies in the given redshift range, whether they host a substructure or not.

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