DRAFT
2021-03-13 18:22:13
Type: Object/s-Discovery/Classification
ePESSTO+ spectroscopic classification of optical transients
Authors: E. Kankare, T. Nagao, N. Koivisto (Turku), S. Gonzalez-Gaitan, J. Silvestre (CENTRA), G. Pignata (UNAB), S. Taubenberger (MPA), J. Teffs (Liverpool), S. Benetti (INAF), J. Anderson (ESO), T. Müller Bravo (Southampton), T.-W. Chen (Stockholm), M. Gromadzki (Warsaw), C. Inserra (Cardiff), M. Nicholl (Birmingham), O. Yaron (Weizmann), D. Young (QUB), I. Manulis (Weizmann)
Source Group: ePESSTO+
Abstract:
This report includes classifications of 5 transients.

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) 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 March 12, 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 2021epp 08:10:55.286 -06:02:49.39 SN Ic-BL 0.0385 SDSS J081055.23-060249.3 ZTF -3 to 3 Redshift from host lines 08:10:55.286 -06:02:49.39 SN Ic-BL 0.0385
TNS 2021fco 10:39:53.764 +21:50:39.75 SN Ia 0.056 UGC 05801 0.055478 ZTF -5 to -2 10:39:53.750 +21:50:40.16 SN Ia 0.056
TNS 2021epv 10:09:35.854 -13:02:31.70 SN Ia 0.031 WISEA J100936.05-130234.6 0.030915 ZTF +4 to +7 Magnitude consistent with 91bg-like SNIa 10:09:35.855 -13:02:31.43 SN Ia 0.031
TNS 2021ewa 15:35:49.619 +06:48:40.44 SN I 0.0327 ATLAS Reshift from host lines. Fast evolution and possible resemblance with OGLE-2013-SN-079. 15:35:49.619 +06:48:40.44 SN I 0.0327
TNS 2021feu 18:09:54.916 +11:18:05.59 SN Ia 0.04 ZTF at max Redshift from SN spectrum fit 18:09:54.917 +11:18:05.49 SN Ia 0.04

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