Table 2
Seeing (FWHM) in the z, i and r filters, effective area of the image, number of detected sources, 50% completeness limit in the z-band image, and number of primary ((i − z) − σ(i − z) > 1.3) and secondary (1.1 < (i − z) − σ(i − z) < 1.3) z ~ 6 LBG candidates in the four fields.
| Field | Filter | Seeing FWHM | Clean area | Total objects | Completeness limit | Primary | Secondary |
| [arcsec] | [deg2] | z TOT | candidates | candidates | |||
|
|
|||||||
| J1030 | z | 0.64 ± 0.02 | 0.143 | 29151 | 25.2 | 14 | 10 |
| i | 0.70 ± 0.02 | ||||||
| r | 0.74 ± 0.02 | ||||||
|
|
|||||||
| J1148 | z | 0.79 ± 0.02 | 0.144 | 24447 | 25.0 | 8 | 3a |
| i | 0.87 ± 0.02 | ||||||
| r | 0.93 ± 0.02 | ||||||
|
|
|||||||
| J1048 | z | 0.84 ± 0.01 | 0.143 | 24087 | 25.0 | 6 | 9 |
| i | 0.87 ± 0.02 | ||||||
| r | 1.04 ± 0.02 | ||||||
|
|
|||||||
| J1411 | z | 0.73 ± 0.01 | 0.145 | 26055 | 25.0 | 11 | 8 |
| i | 0.77 ± 0.01 | ||||||
| r | 0.80 ± 0.01 | ||||||
Notes.
In the J1148 field an object that just barely misses our selection criteria for secondary z ~ 6 LBG candidates (i.e. it is undetected in the r −band, has ztot = 23.4, but has (i − z) − σ(i − z) = 1.06), was proven to be a z = 5.7 AGN (Mahabal et al. 2005).
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