Table 1
Major merger fractions up to z ≈ 6 from the HDF-S, udf-10 and UDF-Mosaic combined analysis.
| z r |
|
C1(zr) | C2(zr) | σ v |
|
|
N g | N p | f MM | ||
| – | – | – | – | – | [log(M⊙)] | [log(M⊙)] | – | – | – | ||
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | ||
|
|
|||||||||||
|
0.68 | 0.48 | 0.45 | 0.15 | 8.21 | 8.03 | 404 | 10 |
|
||
|
1.25 | 0.45 | 0.44 | 0.18 | 8.96 | 9.17 | 297 | 14 |
|
||
|
2.35 | 0.43 | 0.30 | 0.15 | 9.58 | 9.93 | 152 | 9 |
|
||
|
3.39 | 0.42 | 0.20 | 0.36 | 8.58 | 8.82 | 399 | 10 |
|
||
|
4.99 | 0.55 | 0.35 | 0.52 | 8.36 | 7.91 | 382 | 13 |
|
||
Notes. Columns (1) and (2): range of the redshift bin and its associated mean redshift for the close pairs sample. Columns (3) and (4): weight corresponding to spectroscopic redshift completeness for the two deep fields, based on the udf-10, C1(zr), and the UDF-Mosaic, C2(zr). Column (5): total cosmic variance for the combined field study, depending on the redshift bin and the median of stellar masses for the close pairs. Columns (6) and (7): median values of stellar masses for the parent and pairs samples respectively. Columns (8) and (9): number of galaxies, Ng, and pairs, Np, for the redshift bin. Column (10): major merger fraction.
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