DRAFT
2023-12-13 13:24:05
Type: Object/s-Discovery/Classification
Bibcode: 2023TNSAN.337....1C
adH0cc spectroscopic classification of SN 2023zps
Source Group: adH0cc
Abstract:
We have obtained an optical spectrum of SN 2023zps, which shows it to be a Type II supernova about 20 days after explosion.
The adH0cc programme for an "accurate determination of H0 with core-collapse supernovae" reports the classification of the optical transient SN 2023zps. The target was supplied by the Zwicky Transient Facility ZTF (Kulkarni 2018, 2018ATel11266....1K) and the ATLAS survey (Tonry et al. 2018, 2018PASP..130f4505T). The observations were performed on the night of 2023-12-12 with the ESO Very Large Telescope UT1, equipped with the FORS2 spectrograph and grism 300V, covering a wavelength range from 3400 to 9600 Å at a resolution of 10 Å.
| Catalog | Name | Reported RA | Reported DEC | Reported Obj-Type | Reported Redshift | Host Name | Host Redshift | Source | Phase | Remarks | TNS RA | TNS DEC | TNS Obj-Type | TNS Redshift |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TNS | 2023zps [ZTF23abscvgg] | 05:27:49.370 | -05:21:43.48 | SN II | 0.042 | SDSS J052749.26-052143.5 | 0.042 | 20 d | The classification spectrum shows broad P Cygni features of hydrogen, indicating that SN 2023zps is a Type II supernova. The presence of a weak calcium triplet at 8300 Å suggests the supernova to be two to three weeks old, which is further supported by comparisons made with GELATO (Harutyunyan et al. 2008, 2008A&A...488..383H) and by the ATLAS forced photometry light curve. We have adopted the redshift of the host for the SN redshift. | 05:27:49.380 | -05:21:43.39 | SN II | 0.042 |
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