Table 1
Journal of the VLT/FORS2 spectroscopic observations of SN 2013cq.
| Date | Δtobs | texp | ⟨ S/N ⟩ | Grism | ΔtRF |
|
|
|||||
| (days) | (s) | (days) | |||
|
|
|||||
| 2013 May 4 | 6.737 | 1 × 900 | 13−28 | 300V | +5.02 |
| 2013 May 4 | 6.756 | 1 × 900 | 2−6 | 300I | +5.04 |
| 2013 May 7 | 9.735 | 1 × 900 | 4−10 | 300V | +7.26 |
| 2013 May 10 | 13.669 | 1 × 900 | 6−10 | 300I | +10.20 |
| 2013 May 12 | 15.660 | 2 × 900 | 5−12 | 300V | +11.68 |
| 2013 May 14 | 16.680 | 2 × 1800 | 10−20 | 300V | +12.44 |
| 2013 May 16 | 18.696 | 2 × 900 | 3−9 | 300V | +13.95 |
| 2013 May 25 | 28.676 | 2 × 900 | 3−5 | 300V | +21.40 |
| 2013 May 27 | 30.663 | 2 × 1800 | 7−13 | 300V | +22.88 |
| 2013 May 28 | 31.665 | 2 × 1800 | 10−15 | 300V | +23.63 |
Notes. Δtobs: acquisition starting time of the spectra in the observer frame, with respect to the GRB trigger time; texp: total exposure. The ⟨ S/N ⟩ is the average per spectral bin between the S/N at the edges of the grism, where efficiency is lower, and that at the central wavelengths. The last column shows the rest-frame time.
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