DRAFT
2021-01-26 14:04:08
Type: Object/s-Discovery/Classification
Bibcode: 2021TNSAN..28....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. Anderson (ESO), T.-W. Chen (Stockholm), M. Gromadzki (Warsaw), C. Inserra (Cardiff), E. Kankare (Turku), M. Nicholl (Birmingham), I. Irani, O. Yaron (Weizmann), D. Young (QUB), I. Manulis (Weizmann)
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Abstract:
This report includes classifications of 1 Type Ia 91bg-like SN, and a noisy spectrum of an unclassified transient.

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), 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 Jan 25, 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 2021awr [PS21kx] 11:54:19.469 -18:56:58.39 SN Ia-91bg-like 0.023 0.023 z from host spectrum 11:54:19.470 -18:56:58.49
TNS 2021atd [Gaia21aht] 12:22:43.030 -75:32:40.09 Other Spectrum too noisy 12:22:43.030 -75:32:40.09

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