DRAFT
2023-11-17 11:07:35
Type: Object/s-Discovery/Classification
Bibcode: 2023TNSAN.309....1G
ePESSTO+ spectroscopic classification of optical transients
Authors: M. Gonzalez-Bañuelos, M. Kopsacheili, L. Galbany, T. Müller-Bravo (ICE), M. Dennefeld (IAP), A. Gkini (Stockholm), N. Ihanec (Warsaw), J. Anderson (ESO), T.-W. Chen (NCU), M. Gromadzki (Warsaw), C. Inserra (Cardiff), E. Kankare (Turku), M. Nicholl (QUB), O. Yaron (Weizmann), D. Young (QUB)
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Abstract:
This report includes classifications of two Type Ia's. We encourage followup observations.

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).

Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2023 November 16, using EFOSC2 and Grism 13 (3985-9315A, 18A resolution) and Grism 11 (3380-7520A, 16A 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 2023xqn [ATLAS23vno] 00:08:10.117 +27:00:13.23 SN Ia 0.03 UGC 68 0.0292035 around peak The host galaxy redshift agrees well with SN Ia templates at z~0.03 00:08:10.116 +27:00:13.32 SN Ia 0.029
TNS 2023xqm [ATLAS23vnn] 10:34:34.983 -27:39:03.37 SN Ia 0.01 ESO 501-18 0.0101485 around peak The host galaxy redshift agrees well with SN Ia templates at z~0.01 10:34:34.990 -27:39:03.31 SN Ia 0.01

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