DRAFT
2023-11-12 15:00:29
Type: Object/s-Discovery/Classification
Bibcode: 2023TNSAN.300....1R
ePESSTO+ spectroscopic classification of optical transients
Authors: P. Ramsden (QUB/Birmingham), A. Aamer, T. Moore (QUB), S. Srivastav (Oxford/QUB), C. R. Angus, M. Fulton, K. W. Smith (QUB), P. J. Pessi (Stockholm), N. Ihanec (Warsaw), T. Nagao (Turku), 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), 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:
We report classification of 3 transients including 1 SN Ia and 1 SN II. 2023xje exhibits a blue continuum and is likely a young SN.

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) and by the Pan-STARRS Survey for Transients (see Chambers et al. 2016, arXiv:1612.05560, and http://pswww.ifa.hawaii.edu)

Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2023 November 11, using EFOSC2 and Grism 13 (3985-9315A, 18A resolution). Classifications were done using SNID (Blondin & Tonry 2007 2007ApJ...666.1024B), and SuperFit (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 2023xgv [PS23kkj] 20:16:39.686 -14:09:02.27 SN Ia 0.066 ISEA J201639.68-140902.1 pre-max Redshift from narrow host lines. 20:16:39.686 -14:09:02.27 SN Ia 0.066
TNS 2023xgf [ATLAS23vgc] 22:05:40.074 -56:16:45.30 SN II 0.023 WISEA J220540.09-561639.8 around max Blue continuum, possibly flash ionization features. Redshift from narrow host lines. 22:05:40.074 -56:16:45.30 SN II 0.023
TNS 2023xje [ATLAS23vig] 05:38:52.978 -35:55:17.07 SN 0.035 Fast fading ATLAS light curve. Redshift from narrow host lines. 05:38:52.980 -35:55:16.93 SN II 0.035

Comments