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), the All Sky Automated Survey for SuperNovae ASAS-SN (see Shappee et al. 2014 2014ApJ...788...48S), the ESA Gaia Photometric Science Alerts Team DPAC. and by the Gravitational-wave Optical Transient Observer GOTO (Dyer et al. 2018 2018SPIE10704E..0CD).
Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2020 February 20, 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 | Remarks | TNS RA | TNS DEC | TNS Obj-Type | TNS Redshift |
---|---|---|---|---|---|---|---|---|---|---|---|---|
TNS | 2020cpt [ZTF20aanvpzo] | 14:57:30.248 | +08:23:24.03 | SN Ia | 0.03705 | CGCG 076-111 | 0.036962 | 14:57:30.247 | +08:23:24.02 | SN Ia | 0.03705 | |
TNS | 2020csh [ZTF20aaocklb] | 11:05:51.093 | -18:37:17.11 | SN IIn | 0.07 | SDSS J110551.53-183715.6 | 11:05:51.091 | -18:37:17.15 | SN IIn | 0.07 | ||
TNS | 2020cud [GOTO20hb] | 13:27:47.660 | -27:16:22.14 | SN Ia-91T-like | 0.045305 | 2MASX J13274799-2716258 | 0.0502 | 13:27:47.620 | -27:16:22.30 | SN Ia-91T-like | 0.045305 | |
TNS | 2020cui [ZTF20aammbvq] | 11:22:19.659 | -07:34:47.18 | SN IIn | 0.025 | 11:22:19.650 | -07:34:47.14 | SN IIn | 0.025 | |||
TNS | 2020cwd [ASASSN-20bz] | 06:06:59.081 | -49:00:23.94 | SN Ibn | 0.052 | PGC481435 | 06:06:59.081 | -49:00:23.94 | SN Ibn | 0.052 | ||
TNS | 2020cwl [Gaia20awl] | 15:42:10.650 | +02:41:07.01 | SN Ia | 0.056 | 15:42:10.650 | +02:41:07.01 | SN Ia | 0.056 | |||
TNS | 2020cwm [Gaia20awm] | 15:26:45.980 | +02:53:22.24 | SN I | 0.096 | SDSS J152645.95+025322.8 | 0.096 | Transient hidden in the galaxy. The spectrum shows faint, broad features identifiying it as a Type I SN, but exact classification could not be secured. | 15:26:45.980 | +02:53:22.24 | SN I | 0.096 |