DRAFT
2021-02-11 17:11:39
Type: Object/s-Discovery/Classification
ePESSTO+ spectroscopic classification of optical transients
Authors: M. Deckers, S. Prentice, J. Terwel, M. Magee (TCD), C. Barbarino (Stockholm), G. Pignata (UANB), T. Müller Bravo (Southampton), S. Benetti (INAF), J. Anderson (ESO), T.-W. Chen (Stockholm), 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 3 Type Ia SNe, 2 Type II SNe, and 1 Type Ic 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 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. 10, 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 2021cgu [ZTF21aaipypa] 11:03:03.718 +05:05:53.48 SN II 0.026 CGCG 038-099 0.025478 young z from host. Possibly shows signs of a narrow H-alpha P-Cygni profile 11:03:03.710 +05:05:53.41 SN II 0.026
TNS 2021cac [ATLAS21dpr] 09:55:05.475 -15:00:33.46 SN Ia 0.067 max z from snid 09:55:05.473 -15:00:33.55 SN Ia 0.067
TNS 2021bzw [ATLAS21dpa] 10:54:38.722 -14:35:42.25 SN Ia 0.066 max z from snid 10:54:38.722 -14:35:42.30 SN Ia-91T-like 0.066
TNS 2021bwq [ZTF21aahdqrg] 11:28:17.077 -12:53:17.73 SN Ic 0.022 IC 2856 0.022015 z from host 11:28:17.074 -12:53:17.62 SN Ic 0.022015
TNS 2021cdv [ZTF21aaiaeri] 11:07:52.217 +11:00:36.05 SN II 0.043 CGCG 067-004 0.042676 young z from host 11:07:52.214 +11:00:35.92 SN II 0.043
TNS 2021cna [ATLAS21ekn] 14:40:01.814 +20:08:09.25 SN Ia-91T-like 0.097 WISEA J144001.80+200808.9 0.097291 max z from host 14:40:01.814 +20:08:09.25 SN Ia-91T-like 0.097

Comments