Open Access
Table C.1.
Log of Liverpool Telescope (LT), Nordic Optical Telescope (NOT), Galileo National Telescope (TNG), and Very Large Telescope (VLT) spectra taken of SN 2020nlb.
| Instrument | Date [UT] | t [days] | Exposure [s] |
|---|---|---|---|
| LT SPRAT | 2020 Jun 25.92 | −16.1 | 1800 |
| NOT ALFOSC | 2020 Jun 25.97 | −16.1 | 3600 |
| LT SPRAT | 2020 Jun 26.92 | −15.1 | 1200 |
| LT SPRAT | 2020 Jun 28.93 | −13.1 | 600 |
| LT SPRAT | 2020 Jun 29.89 | −12.2 | 400 |
| NOT ALFOSC | 2020 Jul 2.95 | −9.1 | 400 |
| NOT ALFOSC | 2020 Jul 6.91 | −5.2 | 400 |
| NOT ALFOSC | 2020 Jul 7.89 | −4.2 | 400 |
| LT SPRAT | 2020 Jul 9.90 | −2.2 | 200 |
| LT SPRAT | 2020 Jul 13.89 | +1.8 | 200 |
| NOT ALFOSC | 2020 Jul 18.89 | +6.8 | 200 |
| LT SPRAT | 2020 Jul 22.91 | +10.8 | 300 |
| NOT ALFOSC | 2020 Jul 24.89 | +12.8 | 600 |
| NOT ALFOSC | 2020 Jul 30.89 | +18.8 | 400 |
| NOT ALFOSC | 2020 Dec 12.26 | +153 | 900 |
| TNG LRS | 2020 Dec 18.21 | +159 | 900 |
| NOT ALFOSC | 2021 Jan 2.26 | +174 | 1200 |
| NOT ALFOSC | 2021 Jan 19.13 | +191 | 1200 |
| NOT ALFOSC | 2021 Feb 15.28 | +218 | 1200 |
| TNS LRS | 2021 Mar 17.97 | +248 | 900 |
| NOT ALFOSC | 2021 Mar 18.08 | +248 | 2100 |
| NOT ALFOSC | 2021 Apr 21.08 | +282 | 2100 |
| TNG LRS | 2020 May 6.08 | +297 | 3600 |
| NOT ALFOSC | 2021 Jun 2.94 | +325 | 2100 |
| TNG LRS | 2021 Jul 5.94 | +360 | 2700 |
| VLT FORS2 | 2022 Feb 27.26 | +594 | 2460 |
Note. The epoch in days with respect to peak B-band brightness (t) is quoted in the rest frame.
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