DRAFT
2021-08-28 16:10:21
Type: Object/s-Discovery/Classification
Bibcode: 2021TNSAN.228....1D
ePESSTO+ spectroscopic classification of optical transients
Authors: Maxime Deckers, Jacco Terwel, Luke Harvey, Georgios Dimitriadis (TCD), G. Pignata (UNAB), P. Wiseman (Southampton), R. Cartier (Gemini), S. Benetti (INAF), J. Anderson (ESO), T. Müller Bravo (Southampton), T.-W. Chen (Stockholm), M. Gromadzki (Warsaw), C. Inserra (Cardiff), E. Kankare (Turku), M. Nicholl (Birmingham), O. Yaron, I. Irani (Weizmann), D. Young (QUB), J. Tonry, L. Denneau, A. Heinze, H. Weiland (IfA, Univ. of Hawaii), B. Stalder (LSST), A. Rest (STScI), K. W. Smith, S. J. Smartt, J. Gillanders, O. McBrien, S. Srivastav (QUB), K. C. Chambers, T. de Boer, J. Bulger, J. Fairlamb, M. Huber, C.-C. Lin, T. Lowe, E. Magnier, A. Schultz, R. J. Wainscoat, M. Willman (IfA, Univ. Hawaii)
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Abstract:
This report includes classifications of 5 Type Ia's (including one Type Ia 91T-like), 2 Type II's (including one Type IIn), 1 Type Ic, 1 Type Ib/c and 1 Galactic CV. The Type Ia SN2021wdx was already classified earlier today by the Zwicky Transient Facility (TNS Classification Report No. 10613).

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 by the ALeRCE broker (Forster et al. 2020 https://arxiv.org/abs/2008.03303).

Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2021 August 27, 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) 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.

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 2021vmm [PS21iso] 15:12:00.719 -11:24:18.29 SN Ia 0.1 +8 to +10 Redshift from spectral matching 15:12:00.719 -11:24:18.29 SN Ia 0.1
TNS 2021wyk [ZTF21abuytrt] 20:20:31.572 -08:15:03.46 CV 0 20:20:31.572 -08:15:03.46 CV
TNS 2021uqo [ZTF21abqmmyz] 21:49:17.937 -21:50:55.87 SN Ic 0.097 WISEA J214917.98-215056.6 Redshift from host galaxy lines 21:49:17.937 -21:50:55.87 SN Ic 0.097
TNS 2021vws [ATLAS21bfug] 21:55:59.675 -16:17:53.86 SN II 0.081 Redshift from host galaxy lines 21:55:59.672 -16:17:53.63 SN II 0.081
TNS 2021nin [ATLAS21pdt] 22:08:42.297 -32:10:38.05 SN IIn 0.1 Redshift from host galaxy lines 22:08:42.297 -32:10:38.05 SN IIn 0.1
TNS 2021vrv [ATLAS21bfgu] 20:33:26.706 -29:49:09.77 SN Ia 0.092 > +20 Redshift from host galaxy lines 20:33:26.706 -29:49:09.77 SN Ia 0.092
TNS 2021vzd [ZTF21abtmczy] 22:47:22.221 +15:03:32.14 SN Ia 0.1 WISEA J224722.36+150333.4 0.09954 +4 to +7 Redshift from SDSS 22:47:22.221 +15:03:32.14 SN Ia 0.1
TNS 2021wwf [ZTF21abvcugy] 03:24:24.545 -18:43:33.76 SN Ib/c 0.028 WISEA J032424.46-184328.3 0.027963 Redshift from host galaxy lines 03:24:24.546 -18:43:33.88 SN Ib/c 0.028
TNS 2021wwl [ATLAS21bgni] 04:19:54.167 -41:22:49.17 SN Ia-91T-like 0.05 +4 to +7 Redshift from spectral matching 04:19:54.167 -41:22:49.17 SN Ia-91T-like 0.05
TNS 2021wdx [ZTF21abtxglm] 01:00:45.048 -21:25:56.14 SN Ia 0.054491 WISEA J010045.38-212602.4 0.054491 01:00:45.056 -21:25:56.16 SN Ia 0.0545

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