Table 2.
Observing log of the observations of the four GRB host galaxy spectra of the golden sample.
| GRB host | Redshift | Exposure time (s) |
Slit width |
PA | Obs. date | Seeing | Airmass | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| UVB | VIS | NIR | UVB | VIS | NIR | (deg) | (″) | ||||
| GRB 011211 | 2.1434 | 4 × 1800 | 4 × 1800 | 4 × 900 | 1.0 | 0.9 | 0.9 | 101 | 2010-03-18 | 0.5 | 1.4 |
| GRB 021004 | 2.3298 | 4 × 1200 | 4 × 1200 | 8 × 650 | 1.6 | 1.5 | 1.5 | 41 | 2009-11-21 | 1.3 | 1.4 |
| GRB 060926 | 3.2090 | 2 × 1800 | 2 × 1800 | 6 × 600 | 1.0 | 0.9 | 0.9 | 47 | 2010-04-18 | 0.8 | 1.3 |
| GRB 070110 | 2.3523 | 4 × 1680 | 4 × 1680 | 8 × 840 | 1.0 | 0.9 | 0.9 | 42 | 2010-10-29 | 0.8 | 1.4 |
Notes. The columns indicate the GRB name, redshift determined from emission lines (see Sect. 3), exposure time, slit width and position angle (PA) used in this study, as well as the observing date, average seeing, and airmass of the observations.
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