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 Pan-STARRS Survey for Transients (Chambers et al. 2016 2016arXiv161205560C), the ATLAS survey (Smith et al. 2020 2020arXiv200309052S), 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 the All Sky Automated Survey for SuperNovae ASAS-SN (see Shappee et al. 2014 2014ApJ...788...48S).
Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2020 Nov 20, using EFOSC2 and Grism 13 (3985-9315A, 18A resolution). Classifications were done using SNID (Blondin & Tonry 2007 2007ApJ...666.1024B).
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 | 2020zpj [ZTF20acqjmzk] | 22:43:38.633 | -14:04:04.47 | SN Ia | 0.1 | WISEA J224338.65-140405.1 | at max | Redshift from SNID match. | 22:43:38.633 | -14:04:04.47 | SN Ia | 0.1 | ||
TNS | 2020zid [ZTF20acppruo] | 23:22:06.059 | -06:12:47.21 | SN Ia | 0.13 | SDSS J232206.10-061247.5 | 0.118 | at max | Redshift from SNID match. | 23:22:06.059 | -06:12:47.21 | SN Ia | 0.13 | |
TNS | 2020aabz [ZTF20acqzjqz] | 02:54:59.029 | +04:03:36.86 | SN Ia | 0.03 | -7 to -4 | Redshift from SNID match. | 02:54:59.040 | +04:03:37.01 | SN Ia | 0.0241 | |||
TNS | 2020aakp [ASASSN-20ol] | 06:43:06.166 | -74:12:48.89 | SN Ia | 0.028 | PGC19480 | 0.023 | -7 to -4 | Redshift from SNID match. | 06:43:06.150 | -74:12:49.46 | SN Ia | 0.028 | |
TNS | 2020zqo [ASASSN-20od] | 04:02:55.154 | -31:20:16.62 | SN Ia | 0.06 | WISEA J040255.26-312018.9 | 0.059658 | at max | Redshift from SNID match. | 04:02:55.180 | -31:20:16.62 | SN Ia | 0.06 | |
TNS | 2020aagw [ATLAS20bfpg] | 08:38:58.367 | +05:47:27.60 | SN Ia | 0.05 | at max | Redshift from SNID match. | 08:38:58.365 | +05:47:27.64 | SN Ia | 0.048 | |||
TNS | 2020zoq [ASASSN-20oc] | 10:36:21.542 | +13:43:08.94 | SN II | 0.01 | UGC 05760 | 0.01004 | +1 to +2 weeks | Redshift measured from emission lines. Blue continuum, clear P-Cygni Balmer series and NaD/HeI. Abs mag = -15.4, consistent with a nornal Type IIP. | 10:36:21.590 | +13:43:07.10 | SN II | 0.01 | |
TNS | 2020znl [ZTF20acpvbbh] | 06:13:17.896 | -15:53:31.41 | Other | 0.043 | around max | Redshift measured from emission lines. Narrow emission feature (unfortunately at the edge of the telluric B-band) which we tentatively associated with Halpha. The continuum is blue and largely featureless aside from two apparent absorptions at *rest frame* 4757, 4833 Ang. Fitting a Gaussian to these absorptions gives an FWHM of 2,000 - 4,000 km/s. The lightcurve has a clear and smooth rise for ~10 days, and at z=0.043 has an absolute magnitude -19.3. Was initially classified as a possible TDE in ATel #14190. | 06:13:17.899 | -15:53:31.45 | SN II | 0.043 |
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