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).
Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2020 December 14, 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 | 2020abcq [ATLAS20bgez] | 08:44:31.500 | -20:20:47.36 | SN II | 0.01152 | ESO 563- G 017 | ATLAS | Around max | An absolute mag of -15.1 mag is obtained by using a distance of 51.8 Mpc (m-M=33.57), the ATLAS magnitude on Dec 9 (o=18.8 mag) and the Milky Way Ao=0.3 mag. This magnitude is consistent with the sample of low-luminosity SN II. | 08:44:31.500 | -20:20:47.36 | SN II | 0.0115 | |
| TNS | 2020abgv [ZTF20acumekm] | 02:38:40.800 | -26:59:16.15 | SN Ia | 0.057 | 2MASX J02384125-2659160 | ZTF | +7 to +10 | Redshift from SNID | 02:38:40.800 | -26:59:16.15 | SN Ia | 0.057 | |
| TNS | 2020abqu [ATLAS20bgpq] | 04:13:49.944 | -14:10:27.15 | SN Ia | 0.044 | LEDA 146132 | ATLAS | +4 to +7 | Redshift from SNID | 04:13:49.975 | -14:10:27.31 | SN Ia | 0.044 | |
| TNS | 2020abyx [ATLAS20bhby] | 13:32:07.159 | -22:57:17.71 | SN Ia | 0.0169 | ESO 509-45 | ATLAS | +20 | 13:32:07.160 | -22:57:17.50 | SN Ia | 0.0169 | ||
| TNS | 2020acbm [ZTF20acwgxhk] | 02:40:17.798 | +02:25:37.47 | SN II | 0.021 | 2MASX J02401761+0225364 | ZTF | -3 to +3 | 02:40:17.800 | +02:25:37.45 | SN II | 0.021 | ||
| TNS | 2020acma [ATLAS20bhnw] | 10:37:57.847 | -28:54:30.70 | SN Ia | 0.014 | ESO 437-19 | ATLAS | -7 to -4 | 10:37:57.860 | -28:54:30.78 | SN Ia | 0.014 | ||
| TNS | 2020acol [ZTF20acxkxxr] | 22:23:58.293 | -04:04:20.08 | SN Ia | 0.016328 | NGC 7266 | ZTF | Around max | 22:23:58.284 | -04:04:20.03 | SN Ia | 0.0163 |