Table D.2
Log of spectroscopic observations of Type Ibn SNe in the F25 sample□.
| Object | Observation date | Phase (days)a | Wavelength range (Å) | Dispersion (Å) | Instrument | Analysisb |
|---|---|---|---|---|---|---|
| SN 2018jmt | 2018/12/16 | +3 | 3638-9233 | 5.52 | EFOSC2† | ✓ |
| SN 20191sm | 2019/07/27 | −4 | 3777-9223 | 25.6 | SEDM† | ✓ |
| SN 20191sm | 2019/07/30 | −1 | 3645-9240 | 5.52 | EFOSC2† | ✓ |
| SN 2020taz | 2020/09/24 | +5 | 4002-9852 | 2.0 | DIS† | ✓ |
| SN 2020able | 2020/12/08 | −14 | 3499-10001 | 2.29 | FLOYDS† | ✓ |
| SN 2020able | 2020/12/11 | −11 | 3162-10148 | 1.18 | LRIS | ✓ |
| SN 2020able | 2021/01/06 | +15 | 3405-10494 | 2.54 | Kast | ✓ |
| SN 2020able | 2021/01/11 | +20 | 3406-9995 | 2.53 | Kast | ✓ |
Notes. (□)Full table available in electronic form.
(a)Phases estimated with respect to MJDmax (Table D.8).
(b)The symbol ✓ (×) indicates that the corresponding spectrum was (not) utilized for the spectroscopic analysis in Sect. 6.
(†) The spectrum is retrieved directly from WISeREP. For the following SNe, the spectra from WISeREP has already been published: SN 2018jmt (Wang et al. 2024b), SN 2020nxt (Wang et al. 2024a), SN 2020taz (Wang et al. 2025), SN 2022ablq (Pellegrino et al. 2024), SN 2023emq (Pursiainen et al. 2023), SN 2023utc (Wang et al. 2025), and SN 2023xgo (Gangopadhyay et al. 2025).
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