ePESSTO+, the advanced Public ESO Spectroscopic Survey for Transient Objects (Smartt et al. 2015 2015A&A...579A..40S), reports the following supernova classifications.
Targets were supplied by the ATLAS survey (Smith et al. 2020 2020arXiv200309052S) and the Zwicky Transient Facility ZTF (Bellm et al. 2019 2019PASP..131a8002B) - data stream processed through the Lasair broker (Smith, Williams, Young et al. 2019 2019RNAAS...3a..26S) and by the ALeRCE broker (Forster et al. 2020 https://arxiv.org/abs/2008.03303).
Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2021 Feb. 11, using EFOSC2 and Grism 13 (3985-9315A, 18A resolution). Classifications were done using SNID (Blondin & Tonry 2007 2007ApJ...666.1024B) and GELATO (Harutyunyan et al. 2008 2008A&A...488..383H).
The classification spectra and additional details can be obtained from http://www.pessto.org (via WISeREP) and the IAU Transient Name Server.
The classified objects are listed in the Related Objects table below.
| Catalog | Name | Reported RA | Reported DEC | Reported Obj-Type | Reported Redshift | Host Name | Host Redshift | Source | Phase (days) | Remarks | TNS RA | TNS DEC | TNS Obj-Type | TNS Redshift |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TNS | 2021coe [ZTF21aaisnth] | 13:19:54.193 | +00:30:37.83 | SN Ia-pec | 0.054 | WISEA J131954.18+003043.3 | 0.0544 | max | z from host, similar to 91T-like and 00cx-like SN | 13:19:54.193 | +00:30:37.83 | SN Ia-pec | 0.054 | |
| Other | ZTF21aajezvp | 10:12:58.495 | +15:04:23.77 | No source visible in acquisition image | ||||||||||
| TNS | 2021cku [ATLAS21eek] | 12:58:41.642 | -30:33:39.12 | SN Ia | 0.043 | max | z from snid | 12:58:41.642 | -30:33:39.12 | SN Ia | 0.043 | |||
| TNS | 2021cpi [ATLAS21etj] | 14:51:57.421 | +16:13:18.67 | SN II | 0.055 | WISEA J145157.76+161324.3 | 0.055322 | young | z from host, blue and featureless spectrum | 14:51:57.421 | +16:13:18.67 | SN II | 0.055 | |
| TNS | 2021cky [ATLAS21eev] | 15:17:35.403 | +18:07:05.06 | SN Ia-pec | 0.073 | WISEA J151735.40+180705.1 | 0.073437 | max | z from host, similar to 91T-like and 00cx-like SN | 15:17:35.403 | +18:07:05.06 | SN Ia-pec | 0.073 | |
| TNS | 2021ckl | 15:05:43.842 | +09:58:21.60 | Galaxy | 0.044 | 2MASX J15054383+0958216 | 0.043971 | Consistent with only host galaxy light | 15:05:43.842 | +09:58:21.60 | Galaxy | 0.044 |