AstroNote 2019-139

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2019-11-27 16:54:05
Type: Object/s-Discovery/Classification
ePESSTO+ spectroscopic classification of optical transients
Authors: N. Ihanec (Warsaw), T. Wevers (Cambridge), E. Callis (UCD), M. Gromadzki (Warsaw), S. C. Williams (Turku), G. Pignata (UNAB/MAS), R. Carini(INAF), J. Anderson (ESO), T. Muller Bravo (Southampton), T.-W. Chen (Stockholm), C. Inserra (Cardiff), E. Kankare (Turku), M. Nicholl (Birmingham), O. Yaron (Weizmann), D. R. 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, M. Fraser (UCD), A. Pastorello (INAF-Padova), L. Tartaglia (Stockholm University)
Source Group: ePESSTO+
This report includes classifications of two Type Ia's and one Type II. SN2019vqd is a young Type II with a blue continuum, showing prominent flash features (Balmer, HeII 4686, NIII 4640, maybe CIV 5801).

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, ApJ, 788, 48 and

Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2019 Nov 26, using EFOSC2 and Grism 13 (3985-9315A, 18A resolution). Classifications were done using SNID (Blondin & Tonry 2007 2007ApJ...666.1024B) 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
TNS2019vch [ATLAS19bard]06:45:11.774-43:43:07.08SN Ia0.067+8Redshift from SNID match06:45:11.774-43:43:07.08SN Ia0.067
TNS2019vqf [ASASSN-19abx]06:15:16.954-45:19:06.38SN Ia0.066WISEA J061517.03-451903.1at maxRedshift from host emission lines06:15:16.954-45:19:06.38SN Ia0.066
TNS2019vqd [ATLAS19bayf]06:44:41.703+20:39:51.86SN II0.04Young Type II, blue continuum, shows prominent flash features (Balmer, HeII 4686, NIII 4640), redshift from emission lines06:44:41.706+20:39:52.07SN II0.04