DRAFT
2023-11-05 14:30:25
Type: Object/s-Discovery/Classification
Bibcode: 2023TNSAN.290....1R
ePESSTO+ spectroscopic classification of optical transients
Authors: P. Ramsden (QUB/Birmingham), A. Aamer, T. Moore (QUB), M. Fulton, K. W. Smith (QUB), S. Srivastav (Oxford/QUB), L. Galbany (IEEC/ICE-CSIC), T. Killestein, T. Nagao (Turku), S. Benetti (INAF-OAPd), J. Anderson (ESO), T. Müller Bravo (ICE), T.-W. Chen (NCU), M. Gromadzki (Warsaw), C. Inserra (Cardiff), E. Kankare (Turku), M. Nicholl, D. R. Young (QUB), E. Zimmerman, O. Yaron (Weizmann), S. Sim, J. Weston, X. Sheng (QUB), L. Shingles (GSI/QUB), S. J. Smartt (Oxford/QUB), H. Stevance, L. Rhodes, A. Andersson, J. Gillanders, S. Ramaiya (Oxford), L. Denneau, J. Tonry, H. Weiland, A. Lawrence, R. Siverd (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), A. Jordan, V. Suc (UAI, Obstech) A. Rest (STScI), C. Stubbs (Harvard)
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Abstract:
This reports includes classifications of 1 SN, 1 SNIa, 2 SNIa-91T, 1 SNII, 2 AGN and 1 CV.

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 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 2023 November 05, 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 2023uqm [ATLAS23txi] 23:10:39.016 +34:54:11.01 AGN 0.238 ATLAS Redshift derived from galaxy lines 23:10:39.016 +34:54:11.01 AGN 0.238
TNS 2023wcb [ATLAS23uub] 20:41:55.210 +11:42:01.48 CV ATLAS Balmer lines observed at rest wavelength 20:41:55.210 +11:42:01.48 CV
TNS 2023sas [ZTF23abbbawg] 21:22:16.000 +00:39:50.65 AGN 0.187 ZTF Redshift derived from galaxy lines 21:22:16.000 +00:39:50.65 AGN 0.187
TNS 2023wng [ATLAS23uya] 23:44:14.186 +22:48:08.65 SN Ia 0.1 ATLAS +4 to +7 Redshift measured using SNID. 23:44:14.195 +22:48:08.51 SN Ia 0.1
TNS 2023wnb [ZTF23abojfyl] 21:20:17.634 -20:35:19.15 SN 0.039 WISEA J212017.39-203516.8 0.03887 ZTF Redshift from known host 21:20:17.634 -20:35:19.15 SN 0.039
TNS 2023wom [ZTF23abogvhe] 03:40:16.276 -23:41:09.01 SN Ia-91T-like 0.11 WISEA J034016.48-234110.2 ZTF -3 to +3 Redshift measured using SNID. 03:40:16.276 -23:41:09.01 SN Ia-91T-like 0.11
TNS 2023woq [ZTF23abofyzh] 01:27:34.238 -12:26:53.88 SN Ia-91T-like 0.065 LEDA 952675 0.0653 ZTF -10 to -8 Redshift from known host. 01:27:34.240 -12:26:54.06 SN Ia-91T-like 0.065
TNS 2023wli [GOTO23bcy] 05:27:30.236 +00:38:06.62 SN II 0.033 GOTO -7 to -4 Redshift derived from faint Hα. 05:27:30.236 +00:38:06.62 SN II 0.03

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