DRAFT
2024-01-12 12:11:48
Type: Object/s-Discovery/Classification
Bibcode: 2024TNSAN..15....1B
ePESSTO+ spectroscopic classification of optical transients
Authors: M. Bronikowski (Nova Gorica), K. Grzesiak, M. Gromadzki (Warsaw), A. Kumar (Warwick), X. Sheng (QUB), J. Anderson (ESO), T.-W. Chen (NCU), C. Inserra (Cardiff), E. Kankare (Turku), T. Müller Bravo (ICE), M. Nicholl (QUB), O. Yaron (Weizmann), D. Young (QUB), 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), S. J. Smartt (Oxford/QUB), K. W. Smith, M. Fulton, M. McCollum, T. Moore, S. Srivastav, J. Weston (QUB), L. Shingles (GSI/QUB), L. Rhodes (Oxford), J. Sommer (LMU/QUB), A. Rest (STScI), C. Stubbs (Harvard)
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Abstract:
This report includes classifications of three Type Ia's, one Type II.

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 2020PASP..132h5002S), the Gravitational-wave Optical Transient Observer GOTO (see Dyer et al. 2020, SPIE, 11445 2020SPIE11445E..7GD).

Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2024 January 11, 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).

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 2023abdh [GOTO23bzt] 04:00:09.302 -45:19:04.79 SN Ia 0.051 LCRS B035833.2-452725 0.051 3 Known host redshift. 04:00:09.300 -45:19:04.94 SN Ia 0.051
TNS 2024tt [ATLAS24aoc] 00:57:25.346 -76:03:34.32 SN Ia 0.069 S0WL036129 -1 Redshift found by measuring narrow Halpha emission line 00:57:25.346 -76:03:34.32 SN Ia 0.069
TNS 2024vr [ATLAS24apw] 02:35:21.162 -25:31:39.15 SN Ia 0.057 ESO479-G015 0.057 -1 Known host redshift. 02:35:21.118 -25:31:39.24 SN Ia 0.057
TNS 2023xxs [ATLAS23vvk] 11:30:23.310 -41:03:42.44 SN IIP 0.012 ESO319-G026 0.012 55 Known host redshift. 11:30:23.310 -41:03:42.44 SN IIP 0.012

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