DRAFT
2021-02-05 17:00:04
Type: Object/s-Discovery/Classification
ePESSTO+ spectroscopic classification of optical transients
Authors: M. Magee, J. Terwel, S. Prentice, L. Harvey (TCD), M. Fulton, S. Srivastav (QUB), T. W. Chen (Stockholm), S. Benetti (INAF), 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 (QUB)
Source Group: ePESSTO+
Abstract:
This report includes classifications of 8 Type Ias, 1 Type II, and 1 CV.

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), and 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 Feb 04, 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 Phase (days) Remarks TNS RA TNS DEC TNS Obj-Type TNS Redshift
TNS 2021bon [ZTF21aaglret] 06:11:16.691 -23:33:35.11 SN Ia 0.063 -10 to 8 z from classification software 06:11:16.680 -23:33:35.14 SN Ia 0.063
TNS 2021bpd [ZTF21aagogqj] 08:23:06.269 -16:38:52.01 CV 0 08:23:06.269 -16:38:52.01 CV
TNS 2021bnb [ATLAS21dkv] 05:18:48.491 -36:37:30.25 SN Ia 0.042 0.041976 -7 to -4 z from host 05:18:48.491 -36:37:30.25 SN Ia 0.041976
TNS 2021bpn [ZTF21aagocor] 08:59:29.585 -02:55:37.70 SN Ia 0.06 max z from classification software 08:59:29.581 -02:55:37.57 SN Ia 0.06
TNS 2021bix [ATLAS21dfx] 07:56:43.730 -24:34:27.16 SN Ia 0.04 +4 to +7 z from classification software 07:56:43.730 -24:34:27.16 SN Ia 0.04
TNS 2021all [ATLAS21cii] 10:19:24.703 +14:43:12.60 SN II 0.04 z from host lines 10:19:24.711 +14:43:12.71 SN II 0.04
TNS 2021alk [ATLAS21cia] 12:58:13.817 -22:22:08.95 SN Ia 0.09 max z from classification software 12:58:13.801 -22:22:08.42 SN Ia 0.09
TNS 2021bsf [ATLAS21dmw] 12:06:04.033 +20:32:13.20 SN Ia 0.0237 0.023699 -7 to -4 z from host 12:06:04.040 +20:32:13.31 SN Ia 0.0237
TNS 2021bsb [ATLAS21dlv] 10:18:23.152 +13:44:52.34 SN Ia 0.0817 0.081713 -7 to -4 z from host 10:18:23.164 +13:44:52.21 SN Ia 0.0817
TNS 2021bsx [ZTF21aagydov] 12:12:25.407 +07:59:12.07 SN Ia 0.0646 0.064618 -7 to -4 z from host 12:12:25.407 +07:59:12.07 SN Ia 0.0646

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