Table 1.
Basic information on spectra collected for SN 2018cnf.
| Date | MJD | Phase (days) | Instrumental configuration | Res (Å) | Range (Å) |
|---|---|---|---|---|---|
| 2018-06-17 | 58 286.2 | −7.2 | GTC+OSIRIS+R1000B+R1000R | 7,8 | 3630−10 350 |
| 2018-06-17 | 58 286.2 | −7.2 | LT+SPRAT | 18 | 4000−8100 |
| 2018-06-18 | 58 287.6 | −5.8 | FTN+FLOYDS | 15 | 3500−10 000 |
| 2018-06-19 | 58 288.2 | −5.2 | GTC+OSIRIS+R2500R | 3.2 | 5580−7680 |
| 2018-06-19 | 58 288.4 | −5.0 | VLT(UT2)+UVES | 0.15 ( * ) | 3750−9460 |
| 2018-06-20 | 58 289.2 | −4.2 | GTC+OSIRIS+R1000B+R1000R | 7,8 | 3630−10 350 |
| 2018-06-21 | 58 290.1 | −3.3 | Copernico+AFOSC+gm4 | 14 | 4100−8200 |
| 2018-06-24 | 58 293.2 | −0.2 | GTC+OSIRIS+R1000B+R1000R | 7,8 | 3630−10 350 |
| 2018-06-27 | 58 296.6 | +3.2 | FTN+FLOYDS | 15 | 3500−10 000 |
| 2018-06-30 | 58 299.6 | +6.2 | FTN+FLOYDS | 15 | 3500−10 000 |
| 2018-07-08 | 58 307.2 | +13.8 | GTC+OSIRIS+R1000B+R1000R | 7,8 | 3630−10 350 |
| 2018-07-08 | 58 307.6 | +14.2 | FTN+FLOYDS | 15 | 3500−10 000 |
| 2018-07-11 | 58 310.5 | +17.1 | FTN+FLOYDS | 15 | 3500−10 000 |
| 2018-07-18 | 58 317.1 | +23.7 | Copernico+AFOSC+VPH7 | 15 | 3500−7280 |
| 2018-07-22 | 58 321.2 | +27.8 | GTC+OSIRIS+R1000B+R1000R | 7,8 | 3630−10 350 |
| 2018-07-23 | 58 322.8 | +29.4 | FTS+FLOYDS | 23 | 3500−10 000 |
| 2018-07-24 | 58 323.8 | +30.4 | FTS+FLOYDS | 23 | 3500−10 000 |
| 2018-08-04 | 58 334.2 | +40.8 | GTC+OSIRIS+R2500R | 3.2 | 5580−7680 |
| 2018-08-07 | 58 337.1 | +43.7 | Copernico+AFOSC+VPH7 | 14 | 3400−7280 |
| 2018-08-09 | 58 339.6 | +46.2 | FTN+FLOYDS | 15 | 3500−10 000 |
| 2018-08-10 | 58 340.1 | +46.7 | GTC+OSIRIS+R1000B | 7 | 3630−7860 |
| 2018-08-18 | 58 348.2 | +54.8 | GTC+OSIRIS+R1000B+R1000R | 7,8 | 3630−10 350 |
| 2018-08-21 | 58 350.0 | +56.6 | GTC+OSIRIS+R1000B | 7 | 3630−7860 |
| 2018-08-25 | 58 355.2 | +61.8 | GTC+OSIRIS+R1000B+R1000R | 7,8 | 3630−10 350 |
| 2018-09-01 | 58 362.5 | +69.1 | FTN+FLOYDS | 15 | 3500−10 000 |
| 2018-09-09 | 58 370.2 | +76.8 | NTT+EFOSC2+gm11 | 14 | 3340−7450 |
| 2018-09-12 | 58 373.1 | +79.7 | Magellan+FIRE | 7830−25 200 | |
| 2018-10-10 | 58 401.2 | +107.8 | NTT+EFOSC2+gm11 | 14 | 3340−7450 |
Notes. The phases are from the V-band light curve maximum (see Sect. 5). GTC = 10.4 m Gran Telescopio Canarias (La Palma, Canary Islands, Spain); LT = 2.0 m Liverpool Telesope (La Palma, Canary Islands, Spain); FTN = 2.0 m Faulkes Telescope North (Haleakala, Hawaii Islands, USA); VLT = 8.2 m Very Large Telescope (ESO-Cerro Paranal, Chile); Copernico = 1.82 m Copernico Telescope (Mt. Ekar, Asiago Observatory, Italy); FTS = 2.0 m Faulkes Telescope South (Siding Spring, Australia); NTT = 3.58 m New Technology Telescope (ESO-La Silla, Chile); Baade = 6.5 m Magellan Baade Telescope (Las Campanas Observatory, Chile). ( * )Measured at 6300 Å.
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