DRAFT
2019-08-21 16:11:48
Type: Object/s-Discovery/Classification
Bibcode: 2019TNSAN..71....1F
ePESSTO+ spectroscopic classification of optical transients
Authors: M. Fraser, S. Brennan (Univ. Collage Dublin), N. Ihanec, M Gromadzki (Warsaw), S. C. Williams (Lancaster), C. Gutierrez (Southampton), T. Wevers (Cambridge), J. Anderson (ESO), T. Muller Bravo (Southampton), T.-W. Chen (MPE), M. Gromadzki (Warsaw), C. Inserra (Cardiff), E. Kankare (Turku), M. Nicholl (Edinburgh), O. Yaron, I. 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), A. Pastorello (INAF-Padova)
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Abstract:
This report includes classifications of two Type Ia's, one Type Ia-91bg and two Type II's. SN2019nyk is infant Type II, showing flash features. SN2019nyn is Type IIn. Classification of AT2019nln is unclear. AT2019nog was not visible on 60s acquisition image.

ePESSTO+, the extended 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), 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 August 20, 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 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 2019mic [ATLAS19qmy] 01:13:45.490 -21:43:28.60 SN Ia 0.09 ATLAS 13 01:13:45.490 -21:43:28.60 SN Ia 0.09
TNS 2019nln [ZTF19abprcwo] 21:55:37.116 +05:23:30.53 Galaxy SDSS J215537.10+052330.7 0.198 ZTF noisy spectrum with emission line feature around 8475A 21:55:37.116 +05:23:30.53
TNS 2019noh [ZTF19abpqvdh] 23:05:40.758 +27:39:57.53 SN Ia-91bg-like 0.024871 UGC 12352 0.024871 ZTF 0 23:05:40.758 +27:39:57.52 SN Ia-91bg-like 0.0249
TNS 2019nwf [ZTF19abqlrtb] 04:05:04.975 -06:36:17.31 SN Ia 0.057 ZTF -7 04:05:04.980 -06:36:17.34 SN Ia 0.057
TNS 2019nyk [ZTF19abqrhvt] 00:15:15.205 -08:11:21.84 SN II 0.021 HIPASS J0015-08 ZTF blue continuum superimposed by faint Balmer and HeII emission lines 00:15:15.202 -08:11:21.85 SN II 0.021048
TNS 2019nyn [ASASSN-19tx] 01:07:37.215 -41:51:12.33 SN IIn 0.023947 AM 0105-420 NED02 0.023947 ASAS-SN blue continuum with narrow Balmer emission lines and broad emission of NIII+HeII. 01:07:37.215 -41:51:12.33 SN II 0.023947
TNS 2019nog [ZTF19abptnap] 23:41:01.498 -12:23:56.32 Other LEDA 953369 target was not visible on 60s acquisition image 23:41:01.498 -12:23:56.32

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