AstroNote 2023-290

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DRAFT
2023-11-05 14:30:25
Type: Object/s-Discovery/Classification
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+
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
CatalogNameReported RAReported DECReported Obj-TypeReported RedshiftHost NameHost RedshiftSourcePhase (days)RemarksTNS RATNS DECTNS Obj-TypeTNS Redshift
TNS2023uqm [ATLAS23txi]23:10:39.016+34:54:11.01AGN0.238ATLASRedshift derived from galaxy lines23:10:39.016+34:54:11.01AGN0.238
TNS2023wcb [ATLAS23uub]20:41:55.210+11:42:01.48CVATLASBalmer lines observed at rest wavelength20:41:55.210+11:42:01.48CV
TNS2023sas [ZTF23abbbawg]21:22:16.000+00:39:50.65AGN0.187ZTFRedshift derived from galaxy lines21:22:16.000+00:39:50.65AGN0.187
TNS2023wng [ATLAS23uya]23:44:14.186+22:48:08.65SN Ia0.1ATLAS+4 to +7Redshift measured using SNID.23:44:14.195+22:48:08.51SN Ia0.1
TNS2023wnb [ZTF23abojfyl]21:20:17.634-20:35:19.15SN0.039WISEA J212017.39-203516.80.03887ZTFRedshift from known host21:20:17.634-20:35:19.15SN0.039
TNS2023wom [ZTF23abogvhe]03:40:16.276-23:41:09.01SN Ia-91T-like0.11WISEA J034016.48-234110.2ZTF-3 to +3Redshift measured using SNID.03:40:16.276-23:41:09.01SN Ia-91T-like0.11
TNS2023woq [ZTF23abofyzh]01:27:34.238-12:26:53.88SN Ia-91T-like0.065LEDA 9526750.0653ZTF-10 to -8Redshift from known host.01:27:34.240-12:26:54.06SN Ia-91T-like0.065
TNS2023wli [GOTO23bcy]05:27:30.236+00:38:06.62SN II0.033GOTO-7 to -4Redshift derived from faint Hα.05:27:30.236+00:38:06.62SN II0.03