Open Access
Table A.1.
Follow-up observations of transients with late-time signals.
| Name | Tel. / Inst. | Mode | Setup | MJD | Exp. time (s) | Seeing (″) | Comment |
|---|---|---|---|---|---|---|---|
| SN 2020yvs | NOT / ALFOSC | phot | gri | 60388 | 10 x 10 | 0.9 | g > 22.2, r > 21.8, i > 21.6 mag |
| SN 2020jsa | NOT / ALFOSC | phot | gri | 60432 | 10 x 30 | 1.0 | g > 22.76, r > 22.49, i > 23.05 mag, host residual |
| SN 2021nbt | NOT / ALFOSC | phot | ri | 60482 | 4 x 30 | 0.9 | r = 19.458 ± 0.040, i = 19.123 ± 0.062 mag |
| SN 2019zbq | GTC / OSIRIS | phot | r | 60271 | 1 x 10 | 1.2 | r = 20.7 ± 0.1 mag |
| spec | Grism R1000R, 1.0″slit | 60282 | 3 x 1200 | 1.2 | Contains host & excess spectra | ||
| SN 2020qxz | NOT / ALFOSC | phot | i | 60389 | 1 x 600 | 1.7 | i > 21.5 mag |
| spec | Grism #4, 1.3″slit | 60389 | 3 x 1200 | 1.7 | Part of March spectrum | ||
| phot | i | 60399 | 1 x 600 | 1.4 | i > 21.5 mag | ||
| spec | Grism #4, 1.3″slit | 60399 | 3 x 1200 | 1.4 | Part of March spectrum | ||
| spec | Grism #4, 1.3″slit | 60400 | 3 x 1200 | 0.8 | Part of March spectrum | ||
| spec | Grism #4, 1.3″slit | 60413 | 3 x 1200 | 1.5 | Part of April spectrum | ||
| spec | Grism #4, 1.3″slit | 60414 | 3 x 1200 | 1.7 | Part of April spectrum | ||
| spec | Grism #4, 1.3″slit | 60415 | 2 x 1200 | 1.3 | Part of April spectrum | ||
| spec | Grism #4, 1.0″slit ( * ) | 60433 | 3 x 1200 | 1.4 | Part of host spectrum | ||
| spec | Grism #4, 1.0″slit ( * ) | 60480 | 3 x 1200 | 0.7 | Part of host spectrum | ||
Notes. The exposure time is noted as the number of exposures x exposure time of a single exposure. Photometric observations taken in multiple bands with the same exposures are mentioned in the same row.
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