DRAFT
2020-02-27 18:03:53
Type: Object/s-Discovery/Classification
Bibcode: 2020TNSAN..53....1A
ePESSTO+ spectroscopic classification of optical transients
Authors: M. Amenouche, A. Möller (Clermont-Ferrand), M. Smith (Southampton), C. R. Angus (DARK), T. Muller Bravo, M. Pursiainen (Southampton), S. Srivastav (QUB), S. C. Williams (Turku), M. Dennefeld (IAP), S. Benetti (INAF),J. Anderson (ESO), T.-W. Chen (Stockholm), M. Gromadzki (Warsaw), C. Inserra (Cardiff), E. Kankare (Turku), M. Nicholl (Birmingham), O. Yaron (Weizmann), D. Young (QUB), I. Manulis (Weizmann), J. Tonry, L. Denneau, A. Heinze, H. Weiland, H. Flewelling (IfA, Univ. of Hawaii), B. Stalder (LSST), A. Rest (STScI), K. W. Smith, S. J. Smartt, O. McBrien (QUB)
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Abstract:
This report includes classifications of a young 1 Type Ia SN and 1 Type IIn 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 (Tonry et al. 2018 2018PASP..130f4505T), the Zwicky Transient Facility ZTF (Kulkarni 2018 2018ATel11266....1K) - data stream processed through the Lasair broker (Smith, Williams, Young et al. 2019 2019RNAAS...3a..26S), 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 2020 Feb 26, 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 2020dko [ZTF20aarbget] 13:39:57.076 +00:49:41.28 SN Ia 0.022539 NGC 5258 0.022539 ZTF <-10d 13:39:57.059 +00:49:41.48 SN Ia 0.0225
TNS 2020dfh [ATLAS20gle] 17:42:01.600 +03:12:03.10 SN IIn 0.0293 ATLAS, GAIA pre-max Redshift from SN emission lines 17:42:01.600 +03:12:03.10 SN IIn 0.0293

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