DRAFT
2021-01-27 14:46:53
Type: Object/s-Discovery/Classification
Bibcode: 2021TNSAN..29....1G
ePESSTO+ spectroscopic classification of optical transients
Authors: R. González (INAOE), L. Galbany, S. Muñoz, M. Delgado (Granada), N. Elias-Rosa (INAF), P. J. Pessi (ESO), C. Gutiérrez (Turku), S. Benetti (INAF), J. Sollerman (Stockholm), I. Arcavi (TAU), J. Anderson (ESO), T. Müller Bravo (Southampton), T.-W. Chen (Stockholm), M. Gromadzki (Warsaw), C. Inserra (Cardiff), E. Kankare (Turku), M. Nicholl (Birmingham), E. Zimmerman, O. Yaron (Weizmann), D. Young (QUB), I. Manulis (Weizmann)
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Abstract:
This report includes classifications of 4 Type Ia's, 1 02cx-like SNIa, 1 91T-like SNIa, 1 SN Ibn, and 1 Type II SN

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 ESA Gaia Photometric Science Alerts Team DPAC.

Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2021 January 26, 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.

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 2021arg [ZTF21aaevrjl] 04:31:18.787 -10:23:46.85 SN II 0.031 WISEA J043118.77-102346.9 z from host spectrum 04:31:18.783 -10:23:46.99 SN II 0.031
TNS 2021aya [ATLAS21bsp] 05:17:36.090 -38:36:22.05 SN Ia 0.055753 2MASX J05173600-3836220 0.055753 past week z from host 05:17:36.090 -38:36:22.05 SN Ia 0.056
TNS 2021bfg [PS21tj] 10:43:32.956 +18:41:15.85 SN Iax[02cx-like] 0.058 pre-max z from snid 10:43:32.943 +18:41:15.84 SN Iax[02cx-like] 0.058
TNS 2021akw [ATLAS21cgw] 09:18:20.438 -29:53:57.31 SN Ia 0.034 2MASS 09182044-2953575 -4 to -7 z from SNID 09:18:20.460 -29:53:57.08 SN Ia 0.034
TNS 2021bbz [Gaia21alc] 11:45:23.600 +20:19:28.06 SN Ia 0.023373 MCG+04-28-047 0.023373 max z from host 11:45:23.600 +20:19:28.06 SN Ia 0.023
TNS 2021bbv [Gaia21akw] 11:30:20.830 +08:55:34.68 SN Ibn 0.07 +4 to +7 11:30:20.830 +08:55:34.68 SN Ibn 0.07
TNS 2021akl [ZTF21aaetnfe] 12:59:41.903 -05:25:28.00 SN Ia 0.039694 2MASX J12594285-0525347 0.039694 z from host 12:59:41.909 -05:25:27.89 SN Ia 0.04
TNS 2021agf [ATLAS21bte] 13:46:43.761 -27:26:28.14 SN Ia-91T-like 0.052 z from SNID 13:46:43.756 -27:26:28.38 SN Ia-91T-like 0.052

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