| Source | z | Ref. | Opt. | APM | SDSS/DR4 | |||||
| name | ID | R | B | u | g | r | i | z | ||
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) |
| 0744+291 | q | 19.70 | 19.79 | 21.04 | 20.91 | 20.98 | 20.64 | 20.14 | ||
| 0747+314 | G | 22.55 | 23.55 | 20.87 | 19.02 | 19.24 | ||||
| 0811+360 | EF | |||||||||
| 0853+291 | 1.085 | (5) | Q | 18.45 | 18.79 | 18.99 | 18.91 | 18.67 | 18.69 | 18.79 |
| 0902+416 | G | 22.55 | 22.67 | 21.77 | 21.07 | 20.27 | ||||
| 0922+322 | G | 23.55 | 22.71 | 22.32 | 22.08 | 21.70 | ||||
| 1123+340 | 1.247 | (1) | G | |||||||
| 1242+364 | G | 23.87 | 21.94 | 21.57 | 21.23 | 20.30 | ||||
| 1251+308 | - | 19.67 | 21.14 | |||||||
| 1343+386 | 1.844 | (2) | Q | 17.69 | - | 18.42 | 18.24 | 18.05 | 17.60 | 17.52 |
| 1401+353 | 0.45 |
(3) | q | 19.40 | 20.32 | 21.09 | 20.35 | 19.86 | 19.54 | 19.02 |
| 1441+409 | EF | |||||||||
| 1601+382 | G | 18.45 | 20.96 | 21.42 | 19.60 | 18.23 | 17.66 | 17.24 | ||
| 1619+378 | 1.271 | (4) | Q | 18.89 | 21.29 | 21.29 | 19.90 | 18.81 | 18.29 | 18.00 |
| 1632+391 | 1.085 | (5) | Q | 17.93 | 18.33 | 18.95 | 18.68 | 18.34 | 18.21 | 18.04 |
| 1656+391 | G | 24.08 | 22.04 | 20.26 | 19.56 | 19.13 | ||||
| 1709+303 | EF | |||||||||
|
Description of the columns:
Col. (1): source name in the IAU format;
Col. (2): redshift;
Col. (3): reference for the redshift given in Col. 2;
Col. (4): optical identification: G - galaxy, Q - QSO, EF - "empty field'',
q - a star-like object with no known redshift;
Cols. (5 and 6): magnitudes for the two POSS/APM colours;
Cols. (7-11): magnitudes for the five SDSS colours.
Photometric redshift. References for redshifts: (1) - Rawlings et al. (2001), (2) - Hewitt & Burbidge (1989), (3) - Machalski (1998), (4) - Kock et al. (1996), (5) - SDSS. Sources 1232+295 and 1717+315 are not listed since there is no data available for them to date and their possible optical counterparts are too faint to be measured using APM. Note for optical identifications: "G'' should be treated with caution as these designations mostly come from the "automated classifier'' of SDSS. |