AstroNote 2019-132

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2019-11-20 17:40:43
Type: Object/s-Discovery/Classification
ePESSTO+ spectroscopic classification of optical transients
Authors: N. Ihanec (Warsaw), T. Wevers, M. Temple (Cambridge), E. Callis, S. Brennan (UCD), C. Gutierrez (Southampton), S. Taubenberger (MPA), H. Kuncarayakti (Turku), 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), S. Benetti (INAF) , P. Jonker (SRON), F. Patat (ESO), I. Arcavi (Tel Aviv University), D. Perley (LJMU)
Source Group: ePESSTO+
This report includes classifications of 3 Type Ia supernovae, I Type IIP, and one other. AT2019qip has a red, mainly featureless continuum. Two targets, AT2019vdf and AT2019uyy were not visible in 15 and 10 s acquisition image, respectively.

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 (Kulkarni 2018 2018ATel11266....1K) - data stream processed through the Lasair broker (Smith, Williams, Young et al. 2019 2019RNAAS...3a..26S).

Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2019 Nov 19, 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 RedshiftRemarksTNS RATNS DECTNS Obj-TypeTNS Redshift
TNS2019umc [ATLAS19balj]21:10:51.958-16:16:52.22SN Ia-91T-like0.036WISEA J211052.21-161649.0redshift from SNID match21:10:51.960-16:16:52.57SN Ia-91T-like0.037
TNS2019upw [ATLAS19bala]00:26:15.491+21:48:35.91SN Ia0.02redshift from SNID match00:26:15.490+21:48:35.93SN Ia0.02
TNS2019urn [ZTF19acryaon]00:57:49.302-17:38:26.90SN Ia0.06redshift from SNID match00:57:49.292-17:38:26.92SN Ia0.06
TNS2019qip [ATLAS19vfq]06:00:43.177-09:52:03.71Other0Spectrum is red and mainly featureless. Correcting for high estimated reddening, shows similarities to YSOs, weak Halpha emission and narrow NaID absorption at z=0 are detected.06:00:43.177-09:52:03.71
TNS2019uhm [ATLAS19zzz]10:28:48.456-31:29:52.55SN II0.010377Also Classified by the Global SN Project (FLOYDS), redshift from NED and consistent with the narrow host lines.10:28:48.470-31:29:52.08SN II0.010377
TNS2019vdf [ZTF19actjohz]04:46:14.745+04:44:21.11WISEA J044614.85+044425.3object not visible in 15 s acquisition image04:46:14.745+04:44:21.11
TNS2019uyy [PS19gno]05:27:20.853-22:41:36.78target not visible in 10s acquisition image05:27:20.853-22:41:36.78