Table 1
Characterizations of the GRB fields of our sample.
| # | GRB | T 90 | RA, Dec (J2000) XRT | Error | Galactic coordinates (l,b) | E(B − V) |
| s | arcsec | degrees | mag | |||
|
|
||||||
| 1 | 050717 | 85 | 14:17:24.48, −50:32:00.7 | 1.5 | 316.61, 10.04 | 0.24 |
| 2 | 050922B | 150.9 | 00:23:13.37, −05:36:16.7 | 1.7 | 104.35, −67.45 | 0.04 |
| 3 | 060211A | 126.3 | 03:53:32.65, +21:29:19.0 | 1.4 | 169.74, −24.40 | 0.19 |
| 4 | 060805A | 5.3 | 14:43:43.47, +12:35:11.2 | 1.6 | 9.53, 59.97 | 0.02 |
| 5 | 060919 | 9.1 | 18:27:41.80, −51:00:52.1 | 1.7 | 343.87, −17.50 | 0.07 |
| 6 | 060923B | 8.6 | 15:52:46.70, −30:54:13.7 | 1.8 | 342.74, 17.61 | 0.15 |
| 7 | 061102 | 45.6 | 09:53:37.84, −17:01:26.0 | 2.9 | 253.43, 28.29 | 0.04 |
| 8 | 070429A | 163.3 | 19:50:48.92, −32:24:17.8 | 2.1 | 8.06, −25.90 | 0.17 |
| 9 | 070517 | 7.6 | 18:30:28.93, −62:17:51.7 | 2.1 | 332.76,−21.47 | 0.15 |
| 10 | 080207 | 340 | 13:50:02.93, +07:30:07.9 | 1.4 | 340.92, 65.95 | 0.02 |
| 11 | 080218B | 6.2 | 11:51:49.65, −53:05:48.5 | 1.6 | 293.94, 8.73 | 0.17 |
| 12 | 080602 | 74 | 01:16:42.17, −09:13:55.9 | 1.7 | 142.56, −71.13 | 0.03 |
| 13 | 080727A | 4.9 | 13:53:33.81, −18:32:40.5 | 1.6 | 322.88, 41.91 | 0.07 |
| 14 | 080915A | 14 | 01:11:47.63, −76:01:13.1 | 3.7 | 301.30, −41.04 | 0.05 |
| 15 | 081012 | 29 | 02:00:48.17, −17:38:17.2 | 1.8 | 185.87, −71.40 | 0.02 |
| 16 | 081105 | ~10 | 00:15:48.50, +03:28:15.5 | 4.8 | 105.87, −58.22 | 0.03 |
| 17 | 081204 | ~20 | 23:19:09.13, −60:13:31.7 | 5.3 | 321.96, −53.36 | 0.03 |
Notes. (1) The Swift/XRT positions for GRB 061102 and 070517 are from N. Butlers’s webpage (http://astro.berkeley.edu/~nat/swift/xrt_pos.html) (Butler 2007). The XRT position for GRB 080915A, 081105, and 081204 are from Oates et al. (2008b), Beardmore & Cummings (2008), and Mangano et al. (2008a), respectively. All other XRT data are from http://www.swift.ac.uk/xrt_positions/index.php (Evans 2011a,b). (2) The burst duration, T90, was mostly taken from http://heasarc.gsfc.nasa.gov/docs/swift/archive/grbtable/. For GRB 081105, the reference is Cummings et al. (2008), for GRB 080727A it is McLean et al. (2008), and for GRB 081204 it is Götz et al. (2008). (3) The Galactic reddening along the line of sight, E(B − V), was obtained from the NASA Extragalactic Database Coordinate Transformation and Extinction calculator at http://nedwww.ipac.caltech.edu/forms/calculator.html.
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