DRAFT
2021-02-04 17:00:47
Type: Object/s-Discovery/Classification
ePESSTO+ spectroscopic classification of optical transients
Authors: J. Terwel, M. Magee, L. Harvey, S. Prentice (TCD), M. Fulton, S. Srivastav (QUB), T. W. Chen (Stockholm), S. Benetti (INAF), I. Arcavi (Tel Aviv), J. Anderson (ESO), T. Müller Bravo (Southampton), M. Gromadzki (Warsaw), C. Inserra (Cardiff), E. Kankare (Turku), M. Nicholl (Birmingham), O. Yaron, N. L. Strotjohann (Weizmann), D. Young (QUB), I. Manulis (Weizmann), 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)
Source Group: ePESSTO+
Abstract:
This report includes classifications of 6 Type Ias, 1 Type Ia-91T-like, 1 TDE, 1 SLSN-I and 1 Type II.

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 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), 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. 2020 2020SPIE11445E..7GD).

Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2021 Feb 03, using EFOSC2 and Grism 13 (3985-9315A, 18A resolution). Classifications were done using SNID (Blondin & Tonry 2007 2007ApJ...666.1024B), GELATO (Harutyunyan et al. 2008 2008A&A...488..383H), and a custom classification tool.

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 2021bkm [ASASSN-21an] 02:02:53.957 -04:07:19.31 SN Ia 0.0435 -7 to max z from host 02:02:53.957 -04:07:19.31 SN Ia 0.0435
TNS 2021blz [ATLAS21djg] 04:32:31.252 -32:25:50.37 TDE 0.045 z from the narrow Ca H&K lines. Broad He II is blue shifted. 04:32:31.252 -32:25:50.37 TDE 0.045
TNS 2021bnf [ZTF21aagnvvk] 08:33:10.890 +07:35:51.42 SN Ia-91T-like 0.13 z from classification software 08:33:10.890 +07:35:51.55 SN Ia-91T-like 0.13
TNS 2021bnd [ZTF21aagocky] 08:34:48.907 -06:27:19.27 SN Ia 0.07 max z from host galaxy lines 08:34:48.911 -06:27:19.19 SN Ia 0.07
TNS 2021bmy [GOTO21Z] 09:07:44.873 -13:18:33.84 SN Ia 0.055 +7 z from classification software 09:07:44.873 -13:18:33.84 SN Ia 0.055
TNS 2021bnw [ZTF21aagpymw] 10:53:52.177 +12:33:29.12 SLSN-I 0.098 z from classification software 10:53:52.170 +12:33:28.98 SLSN-I 0.098
TNS 2021bnk [Gaia21aoq] 12:14:35.220 -07:23:26.12 SN Ia 0.075 max z from classification software 12:14:35.220 -07:23:26.12 SN Ia 0.075
TNS 2021bjd [Gaia21amu] 13:47:49.220 +26:24:00.54 SN Ia 0.068 max z from classification software 13:47:49.220 +26:24:00.54 SN Ia 0.068
TNS 2021bmr [ATLAS21dki] 05:44:46.003 -20:54:17.81 SN Ia 0.08 max z from classification software 05:44:46.010 -20:54:17.86 SN Ia 0.08
TNS 2021brm [ZTF21aagtwnt] 17:21:20.374 -16:36:13.18 SN II 0.031 z from classification software 17:21:20.381 -16:36:13.14 SN II 0.031

Comments