DRAFT
2021-11-07 15:03:35
Type: Object/s-Discovery/Classification
Bibcode: 2021TNSAN.287....1R
ePESSTO+ spectroscopic classification of optical transients
Authors: F. Ragosta (INAF-OACN), R. Carini (INAF-OAAb), L. Tartaglia, S. Benetti (INAF-OAPd), S. Srivastav (QUB), J. Teffs (LJMU), S. Yang, J. Sollerman (SU), I. Arcavi (TAU), J. Anderson (ESO), T.-W. Chen (SU), M. Gromadzki (Warsaw), C. Inserra (Cardiff), E. Kankare (Turku), T. Müller Bravo (ICE), M. Nicholl (Birmingham), N.-L. Strotjohann, O. Yaron (Weizmann), D. Young (QUB), J. Tonry, L. Denneau, H. Weiland (IfA, Univ. of Hawaii), A. Heinze, B. Stalder (LSST), A. Rest (STScI), K. W. Smith, S. J. Smartt, J. Gillanders, M. Fulton, T. Moore, L. Cai, C. Richman (QUB)
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Abstract:
This report includes classifications of 2 Type Ia's, 1 Type IIL and 1 Type IIn supernovae. We encourage followup observations

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 Pan-STARRS Survey for Transients (Chambers et al. 2016 2016arXiv161205560C), the ATLAS survey (Smith et al. 2020 2020arXiv200309052S), the All Sky Automated Survey for SuperNovae ASAS-SN (see Shappee et al. 2014 2014ApJ...788...48S), MASTER (see http://observ.pereplet.ru/ ; Lipunov et al. 2004, AN, 325, 580) and by the ESA Gaia Photometric Science Alerts Team DPAC.

Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2021 November 6, using EFOSC2 and Grism 13 (3985-9315A, 18A resolution). Classifications were done using SNID (Blondin & Tonry 2007 2007ApJ...666.1024B) and GELATO (Harutyunyan et al. 2008 2008A&A...488..383H) 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 2021abqf [ATLAS21bkfu] 23:27:31.860 -32:59:44.59 SN IIn 0.058 ATLAS at maximum Orphan, redshift derived from SNID/Gelato template fitting 23:27:31.860 -32:59:44.59 SN IIn 0.058
TNS 2021adko [ASASSN-21ul] 00:54:18.300 -61:44:47.80 SN Ia 0.06 WISEA J005417.87-614447.9 ASAS-SN around maximum Redshift derived from SNID/Gelato template fitting 00:54:18.250 -61:44:48.37 SN Ia 0.06
TNS 2021adlt [ATLAS21blqn] 04:39:11.879 +06:22:24.38 SN Ia 0.021 WISEA J043911.64+062221.2 0.02495 ATLAS around maximum Redshift derived from SNID/Gelato template fitting 04:39:11.851 +06:22:24.54 SN Ia 0.021
TNS 2021qfb [MASTER OT J030954.40-100326.3] 03:09:54.403 -10:03:24.62 SN II 0.016 MCG-02-09-006 MASTER > +150 days Redshift derived from narrow host lines (e.g., [O III]) 03:09:54.400 -10:03:24.64 SN II 0.016

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