AstroNote 2019-152

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2019-12-09 15:48:18
Type: Object/s-Discovery/Classification
ePESSTO+ spectroscopic classification of optical transients
Authors: N. Ihanec, M. Gromadzki (Warsaw), T. Wevers (Cambridge), E. Callis (UCD), L. Galbany (UGR), M. Dennefeld (IAP), S. Srivastav (QUB), P. Wiseman (Univ. Southampton), J. Anderson (ESO), T. Muller Bravo (Southampton), T.-W. Chen (Stockholm), 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+
This report includes classifications of three Type Ia's.

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 All Sky Automated Survey for SuperNovae ASAS-SN (see Shappee et al. 2014 2014ApJ...788...48S).

Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2019 Dec 08, 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), Superfit (Howell et al. 2005 2005ApJ...634.1190H), and  and Astrodash (Muthukrishna et al. 2019 2019ApJ...885...85M).

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
TNS2019vnk [ATLAS19bavq]04:00:43.562-09:00:01.92SN Ia0.06+5Redshift from SNID match04:00:43.550-09:00:01.72SN Ia0.06
TNS2019wdx [ASASSN-19acx]08:23:41.393+21:26:03.70SN Ia0.02IC 23410.017155+5Redshift from SNID match08:23:41.402+21:26:03.97SN Ia0.017155
TNS2019wew [ATLAS19bcxj]09:26:34.280-01:39:01.10SN Ia0.07at maxRedshift from SNID match09:26:34.260-01:39:00.94SN Ia0.07