DRAFT
2023-12-09 14:24:11
Type: Object/s-Discovery/Classification
Bibcode: 2023TNSAN.333....1D
ePESSTO+ spectroscopic classification of optical transients
Authors: M. Dennefeld (IAP), A. Sainz de Murieta (Portsmouth), M. Magee, A. Sahu, A. Kumar, D. O'Neill (Warwick), A. Reguitti (INAF-OAB), M. Fulton, S. Srivastav (QUB), J. Sollerman (Stockholm),, J. Anderson (ESO), T.-W. Chen (NCU), M. Gromadzki (Warsaw), C. Inserra (Cardiff), E. Kankare (Turku), T. Müller Bravo (ICE), M. Nicholl (QUB), O. Yaron (Weizmann), D. Young (QUB), E. Zimmerman (Weizmann), S. J. Smartt (Oxford/QUB), K. W. Smith, M. Nicholl (QUB), K. C. Chambers, M. Huber, A. Schultz, T. de Boer, J. Bulger, J. Fairlamb, C.-C. Lin, T. Lowe, E. Magnier, P. Minguez, R. J. Wainscoat, H. Gao (IfA, Hawaii), A. Rest (STScI), C. Stubbs (Harvard), J. Tonry, L. Denneau, H. Weiland, A. Lawrence, R. Siverd (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), A. Jordan, V. Suc (UAI, Obstech), M. McCollum, T. Moore, J. Weston (QUB), L. Shingles (GSI/QUB), L. Rhodes (Oxford), J. Sommer (LMU/QUB)
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Abstract:
This report includes classifications of 2 Type Ia SNe and 2 Type II SNe.

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 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 December 08, using EFOSC2 and Grism 13 (3985-9315A, 18A resolution). Classifications were done using SNID (Blondin & Tonry 2007 2007ApJ...666.1024B), GELATO (Harutyunyan et al. 2008 2008A&A...488..383H), Superfit (Howell et al. 2005 2005ApJ...634.1190H) and NGSF (Next Generation SuperFit; AstroNote 2022-191, Howell et al. 2005 2005ApJ...634.1190H).

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 2023ypx [ATLAS23wkn] 01:13:42.727 -41:37:39.69 SN Ia 0.06 Max Redshift from template matching 01:13:42.750 -41:37:39.83 SN Ia 0.06
TNS 2023yqc [ATLAS23wku] 02:32:46.200 -38:18:37.61 SN II 0.05 Redshift from template matching 02:32:46.200 -38:18:37.61 SN II 0.05
TNS 2023yzu [PS23lme] 05:23:59.483 -20:05:33.15 SN Ia 0.044 0.044414 Agrees with SN Ia classification reported by SCAT 05:23:59.483 -20:05:33.15 SN Ia 0.044
TNS 2023zcu [ATLAS23wvm] 06:01:06.840 -23:40:29.24 SN II 0.006 0.006 Redshift from host galaxy 06:01:06.829 -23:40:29.25 SN II 0.006

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