AstroNote 2019-87

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2019-09-04 14:34:41
Type: Object/s-Discovery/Classification
ePESSTO+ spectroscopic classification of optical transients
Authors: E. Callis, S. Brennan (Univ. College Dublin), N. Ihanec, M. Gromadzki (Warsaw), L. Galbany (U. Pittsburgh), G. Pignata (UNAB/MAS), S. Taubenberger (MPA-Garching), J. Anderson (ESO), T. Muller Bravo (Southampton), T.-W. Chen (MPE), C. Inserra (Cardiff), E. Kankare (Turku), M. Nicholl (Edinburgh), O. Yaron, l. Manulis (Weizmann), D. Young (QUB), 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 spectroscopic classifications of two transients. SN 2019pil is SN Type Ia 9 days before maximum. Classification spectrum of AT 2019peb is inconclusive, shows blue featureless continuum.

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  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 September 3, 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 (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
TNS2019peb [ATLAS19txn]21:46:02.321+01:25:55.26OtherATLASBlue continuum, featureless21:46:02.323+01:25:55.22
TNS2019pil [ASASSN-19vq]03:37:21.202+05:21:16.38SN Ia0.03229MCG +01-10-0020.03229ASAS-SN-9Redshift from NED03:37:21.160+05:21:16.55SN Ia0.0323