DRAFT
2024-11-14 17:53:38
Type: Object/s-Discovery/Classification
Bibcode: 2024TNSAN.336....1P
ePESSTO+ spectroscopic classification of optical transients
Authors: P. J. Pessi, K. Tsalapatas, Y. Hu, A. Gkini, A. Singh, A. Gangopadhyay, J. Sollerman (SU) , M. Dennefeld (IAP), T-W, Chen (NCU), J. Anderson (ESO), M. Gromadzki (Warsaw), C. Inserra (Cardiff), E. Kankare (Turku), T. Müller Bravo (Trinity), O. Yaron (Weizmann), D. Young (QUB), E. Zimmerman (Weizmann), 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, S. Srivastav, M. Fulton, M. McCollum, T. Moore, M. Nicholl, 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 2 Type Ia SNe, 2 Type II SNe and 1 SLSN-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) and by 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 Nov 13, using EFOSC2 and Grism 13 (3985-9315A, 18A resolution) and 11 (3380-7520A, 16A resolution). Classifications were done using SNID (Blondin & Tonry 2007 2007ApJ...666.1024B) 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 Remarks TNS RA TNS DEC TNS Obj-Type TNS Redshift
TNS 2024zqt [GOTO24hpm] 22:03:17.887 -71:06:10.59 SN II 0.06 WISEA J223637.35-474654.1 Best match with Type II. Redshift from NGSF. 22:03:17.887 -71:06:10.59 SN II 0.06
TNS 2024yws [ATLAS24pno] 23:57:57.860 -51:31:39.32 SLSN-II 0.134 WISEA J235757.84-513138.6 Redshift is estimated from host lines. The current o band magnitude of 18.7 gives us an absolute magnitude of -20.3 for the measured redshift placing the transient in SLSN category. 23:57:57.860 -51:31:39.32 SLSN-II 0.134
TNS 2024aayt [ATLAS24qdl] 05:36:07.234 -29:38:24.51 SN Ia 0.04 6dFGS gJ053607.1-293818 Our classification is consistent with TNS Classification Report No. 18690. 05:36:07.220 -29:38:24.29 SN Ia 0.04
TNS 2024xti [GOTO24haa] 05:35:26.932 -28:44:27.42 SN II 0.07 LEDA 738026 Best match with Type II. Redshift from SNID. 05:35:26.967 -28:44:27.61 SN II 0.07
TNS 2024aaru [GOTO24icl] 04:10:08.119 -65:50:31.73 SN Ia 0.06 LEDA 309722 Best match with Type Ia. Redshift from SNID. 04:10:08.119 -65:50:31.73 SN Ia 0.06

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