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 Zwicky Transient Facility ZTF (Kulkarni 2018 2018ATel11266....1K) - data stream processed through the Lasair broker (Smith, Williams, Young et al. 2019 2019RNAAS...3a..26S), by the ESA Gaia Photometric Science Alerts Team DPAC, and the Backyard Observatory Supernova Search BOSS (targets supplied by Stuart Parker).
Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2020 Feb 18, using EFOSC2 and Grism 13 (3985-9315A, 18A resolution). Classifications were done using SNID (Blondin & Tonry 2007 2007ApJ...666.1024B) and Superfit (Howell et al. 2005 2005ApJ...634.1190H).
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 | 2020bza [ZTF20aamfpcj] | 09:46:26.006 | +21:13:45.01 | SN Ia-91T-like | 0.0885 | 0.0885 | ZTF | Around max | Redshift measured from host galaxy emission lines | 09:46:26.006 | +21:13:45.01 | SN Ia-91T-like | 0.0885 | |
| TNS | 2020cdr | 04:50:24.230 | -61:20:49.30 | SN Ia | 0.019 | ESO 119-13 | 0.019 | BOSS | Around max | Redshift from apparent host galaxy, in agreement with SN template fits | 04:50:24.270 | -61:20:49.49 | SN Ia | 0.019 |
| TNS | 2020cqp [Gaia20ava] | 14:32:21.070 | -03:40:13.12 | SN Ia | 0.077 | LCRS B142945.0-032658 | 0.077 | Gaia, ZTF | pre-max | Redshift from apparent host galaxy, in agreement with SN template fits | 14:32:21.070 | -03:40:13.12 | SN Ia | 0.077 |
| TNS | 2020cry [ZTF20aaodnaa] | 14:54:58.250 | -01:32:30.30 | Gaia, ZTF | Spectrum presents a continuum, with no firm features. Tentative Balmer emission at z=0 may be present, although this detection is not firm. The transient is hostless, and the light curve suggests a young event. | 14:54:58.250 | -01:32:30.30 |