Table 3
Summary of the photometry of all objects found in the XRT error circles based on the VLT observations.
| # | GRB | Object | RA, Dec (J2000) | R AB | K AB | ULR | ULK | XRTpos |
|
|
||||||||
| 2 | 050922B | – | no candidates | >26.5 | >22.8 | 26.5 | 22.8 | |
| 5 | 060919 | A | 18:27:41.78, −51:00:51.0 | 26.14 ± 0.24 | >23.4 | 26.5 | 23.4 | 1 |
| 6 | 060923B | Aa | 15:52:46.49, −30:54:12.3 | 23.10 ± 0.11 | 21.76 ± 0.09 | 26.6 | 24.3 | 2 |
| Ba | 15:52:46.61, −30:54:10.3 | 21.67 ± 0.02 | 18.95 ± 0.03 | 26.6 | 24.3 | 2 | ||
| Ca | 15:52:46.56, −30:54:14.6 | 24.49 ± 0.04 | 22.87 ± 0.15 | 26.6 | 24.3 | 1 | ||
| Da | 15:52:46.63, −30:54:16.4 | 25.74 ± 0.12 | 21.63 ± 0.06 | 26.6 | 24.3 | 2 | ||
| Ea | 15:52:46.66, −30:54:12.9 | blended with A | blended with A | 26.6 | 24.3 | 1 | ||
| 7 | 061102 | A | 09:53:37.93, −17:01:22.7 | 24.10 ± 0.06 | >22.8 | 26.9 | 22.8 | 2 |
| B | 09:53:37.89, −17:01:30.8 | 23.96 ± 0.06 | >22.8 | 26.9 | 22.8 | 2 | ||
| 8 | 070429A | A | 19:50:48.78, −32:24:13.6 | 25.01 ± 0.20 | 22.57 ± 0.25 | 26.5 | 23.8 | 3 |
| Ba | 19:50:48.78, −32:24:18.1 | 24.14 ± 0.09 | 22.39 ± 0.21 | 26.5 | 23.8 | 1 | ||
| Ca | 19:50:48.90, −32:24:17.4 | 24.32 ± 0.08 | 21.89 ± 0.14 | 26.5 | 23.8 | 1 | ||
| D | 19:50:49.10, −32:24:17.3 | >26.5 | 23.01 ± 0.40 | 26.5 | 23.8 | 2 | ||
| 9 | 070517 | A | 18:30:29.08, −62:17:53.0 | 25.39 ± 0.21 | >23.4 | 26.6 | 23.4 | 1 |
| 10 | 080207 | A | 13:50:03.03, + 07:30:09.3 | 25.15 ± 0.17 | 23.02 ± 0.39 | 26.9 | 23.6 | 2 |
| B | 13:50:02.97, + 07:30:07.2 | 26.49 ± 0.37 | 21.77 ± 0.14 | 26.9 | 23.6 | 1 | ||
| 11 | 080218B | A | 11:51:49.69, −53:05:49.1 | 26.23 ± 0.13 | 21.74 ± 0.10 | 27.3 | 24.0 | 1 |
| B | 11:51:50.00, −53:05:47.4 | 24.62 ± 0.04 | 22.74 ± 0.24 | 27.3 | 24.0 | 3 | ||
| 12 | 080602 | A | 01:16:42.15, −09:13:55.0 | 22.95 ± 0.02 | 22.55 ± 0.05 | 26.9 | 23.5 | 1 |
| B | 01:16:42.12, −09:13:57.5 | 24.00 ± 0.06 | >23.5 | 26.9 | 23.5 | 2 | ||
| C | 01:16:42.14, −09:13:53.4 | >26.9 | 22.49 ± 0.14 | 26.9 | 23.5 | 2 | ||
| 13 | 080727A | – | no candidates | >26.3 | >23.0 | 26.3 | 23.0 | |
| 14 | 080915A | A | 01:11:47.80, −76:01:13.9 | 21.63 ± 0.01 | 20.42 ± 0.02 | 26.3 | 23.4 | 1 |
| B | 01:11:45.27, −76:01:10.4 | 21.28 ± 0.01 | 19.19 ± 0.01 | 26.3 | 23.4 | 3 | ||
| Ca | 01:11:47.47, −76:01:10.0 | 24.71 ± 0.07 | >23.4 | 26.3 | 23.4 | 1 | ||
| Da | 01:11:46.98, −76:01:09.5 | 24.57 ± 0.08 | >23.4 | 26.3 | 23.4 | 2 | ||
| Ea | 01:11:47.16, −76:01:15.1 | 25.44 ± 0.15 | >23.4 | 26.3 | 23.4 | 1 | ||
| 15 | 081012 | A | 02:00:48.18, −17:38:15.2 | 25.16 ± 0.17 | >23.9 | 26.7 | 23.9 | 2 |
| 16 | 081105 | A | 00:15:48.42, + 03:28:11.6 | 23.73 ± 0.08 | 22.78 ± 0.18 | 26.1 | 24.5 | 1 |
| B | 00:15:48.30, + 03:28:13.8 | 24.34 ± 0.13 | 22.13 ± 0.14 | 26.1 | 24.5 | 1 | ||
| C | 00:15:48.46, + 03:28:10.7 | >25.3 | 21.74 ± 0.13 | 26.1 | 24.5 | 1 | ||
| 17 | 081204 | Ab | 23:19:09.39, −60:13:31.5 | 23.21 ± 0.04 | 22.37 ± 0.16 | 26.4 | 24.3 | 1 |
| Ba | 23:19:09.13, −60:13:30.2 | 23.54 ± 0.06 | 21.59 ± 0.08 | 26.4 | 24.3 | 1 | ||
| C | 23:19:08.99, −60:13:23.4 | 23.16 ± 0.07 | 22.06 ± 0.11 | 26.4 | 24.3 | 2 | ||
| D | 23:19:08.89, −60:13:37.6 | 24.19 ± 0.10 | 22.16 ± 0.15 | 26.4 | 24.3 | 2 | ||
| E | 23:19:09.10, −60:13:39.4 | 24.32 ± 0.12 | >24.3 | 26.4 | 24.3 | 2 | ||
| Fa | 23:19:09.24, −60:13:29.4 | 24.65 ± 0.50 | 21.53 ± 0.07 | 26.4 | 24.3 | 1 | ||
| G | 23:19:08.30, −60:13:39.0 | blended with a star | 21.57 ± 0.15 | 26.4 | 24.3 | 2 | ||
Notes. Column: (2) GRB 050717, GRB 060211A, and GRB 060805A are the only bursts in our sample for which we do not have VLT data (see Table 4). (3) Objects identified in the XRT error circles (see Sect. 3.3). (5) Observed magnitudes. UL stands for the 3σ upper limit. The last column defines the distance of the object from the center of the 90% XRT error circle of radius r0 (see Table 1). A value n means that the source lies within [(n − 1) r0,n r0] . Special notes about the photometry: all magnitudes are based on (2 × FWHM) aperture photometry, except for cases where the object was affected by near-by objects. In the latter case, we used either or . In particular, we gave preference to the latter in the case of elongated objects.
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