DRAFT
2020-11-17 16:25:52
Type: Object/s-Discovery/Classification
Bibcode: 2020TNSAN.233....1G
ePESSTO+ spectroscopic classification of optical transients
Authors: M. Gromadzki, N. Ihanec (Warsaw), T. Wevers (ESO), C. Gutierrez, S. C. Williams (Turku), L. Galbany (Granada), T.-W. Chen (Stockholm), S. Schulze (Weizmann), J. Anderson (ESO), T. Muller Bravo (Southampton), C. Inserra (Cardiff), E. Kankare (Turku), M. Nicholl (Birmingham), O. Yaron, I. Manulis (Weizmann), D. Young (QUB)
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Abstract:
This report includes classifications of 5 Type Ia's, a superluminous supernova, and a tidal disruption event. The TDE appears to have a fast rise and was discovered before peak. Swift follow-up observations have been approved.

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 (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 November 16, 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.

Show current TNS values
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 2020zjv [ZTF20acpwjus] 09:26:33.258 -01:39:01.16 SN Ia-91T-like 0.075 SDSS J092633.20-013900.3 0.075 -10 to -7 days redshift from host galaxy 09:26:33.258 -01:39:01.01 SN Ia-91T-like 0.075
TNS 2020znr [ZTF20acphdcg] 07:19:06.423 +23:53:07.32 SLSN-I 0.1 -20 days redshift from Gelato. Good match to PTF09cnd at -20d 07:19:06.420 +23:53:07.37 SLSN-I 0.1
TNS 2020zpe [ZTF20acqelhh] 04:56:03.770 -25:09:03.94 SN Ia 0.06 WISEA J045603.47-250905.2 -10 to -6 days redshift from SNID 04:56:03.780 -25:09:04.00 SN Ia 0.06
TNS 2020zpf [ZTF20acppsay] 23:12:40.485 -11:56:02.24 SN Ia 0.1 WISEA J231240.50-115602.4 -7 to -3 days redshift from SNID 23:12:40.484 -11:56:02.05 SN Ia 0.1
TNS 2020zpi [ZTF20acqksdi] 02:40:20.447 -01:26:48.93 SN Ia 0.04 CGCG 388-092 0.037056 -12 to -10 days redshift from SNID 02:40:20.450 -01:26:48.70 SN Ia 0.03726
TNS 2020zwe [ZTF20acpprmy] 23:30:16.517 -12:40:04.64 SN Ia 0.08 -6 to -1 days redshift from SNID 23:30:16.517 -12:40:04.64 SN Ia 0.08
TNS 2020zso [ZTF20acqoiyt] 22:22:17.131 -07:15:59.00 TDE 0.061 SDSS J222217.13-071558.9 0.061 Broad, blueshifted He II 4686 emission; redshift from host galaxy emission lines. 22:22:17.130 -07:15:59.08 TDE 0.061

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