AstroNote 2020-40

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2020-02-14 16:47:53
Type: Object/s-Discovery/Classification
ePESSTO+ spectroscopic classification of optical transients
Authors: A. Möller, M. Amenouche (Clermont-Ferrand), M. Smith (Southampton), M. Pursiainen (Southampton), C. Angus (DARK), G. Pignata (UNAB/MAS), P.Wiseman (Southampton), P. Pessi (CONICET), S. Prentice (TCD), J. Anderson (ESO), T. Muller Bravo (Southampton), 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, S. Srivastav (QUB)
Source Group: ePESSTO+
This report includes classifications of three Type Ia SNe and one Type Ic 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) and the Zwicky Transient Facility ZTF .

Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2020 Feb 13, 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 (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
TNS2020cgu [ZTF20aammtwx]07:27:48.245+20:24:05.46SN Ic0.027189UGC038620.027189ZTFAt maxRedshift taken from host07:27:48.240+20:24:05.51SN Ic0.027189
TNS2020bfz [ATLAS20elb]12:13:34.771-41:55:47.55SN Ia0.054ATLAS+11 to +20Redshift from template fits.12:13:34.771-41:55:47.55SN Ia0.054
TNS2020bka [ZTF20aahgmud]12:41:44.464+17:34:43.86SN Ia0.117ZTF+7 to +10Redshift from template fits12:41:44.464+17:34:43.86SN Ia0.117
TNS2020ccm [ATLAS20fpe]11:27:31.600-45:17:57.14SN Ia0.07711273083-45175770.077ATLASAround maxRedshift from apparent host11:27:31.600-45:17:57.14SN Ia0.077