DRAFT
2019-06-08 13:33:28
Type: Object/s-Discovery/Classification
Bibcode: 2019TNSAN..26....1S
ePESSTO+ spectroscopic classification of optical transients
Authors: E. Swann, C. Frohmaier (ICG; Portsmouth), P. Short, M. Nicholl (Edinburgh), M. Dennefeld (IAP), S. Williams (Lancaster), P. Pessi (IALP), A. Pastorello (INAF), J. Anderson (ESO), T. Muller Bravo (Southampton), T.-W. Chen (MPE), M. Gromadzki (Warsaw), C. Inserra (Cardiff), E. Kankare (Turku), O. Yaron (Weizmann), D. R. Young (QUB), I. Manulis (Weizmann), J. Tonry, L. Denneau, A. Heinze, H. Weiland (IfA, Univ. of Hawaii), B. Stalder (LSST), A. Rest (STScI), K.W. Smith, S. J. Smartt, O. McBrien, S. Srivastav (QUB)
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy

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), and the IAU TNS list.

Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2019 June 7, 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).

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 Reported Type Reported Redshift Phase (days) Remarks TNS RA TNS DEC TNS Obj-Type TNS Redshift
TNS 2019hbt 13:43:10.290 +30:20:36.40 SN II 0.034 II 0.034 Spectrum is dominated by a blue continuum, with weak Balmer and He II emission lines consistent with flash ionisation in a young SN II. GELATO also finds some matches to young SNe IIn. 13:43:10.295 +30:20:36.40 SN II 0.03474
TNS 2019gxa [ASASSN-19oi] 23:53:51.768 -40:01:18.80 SN Ia 0.04 Ia 0.04 8 23:53:51.821 -40:01:19.96 SN Ia 0.04
TNS 2019has 02:46:55.181 -24:48:24.01 SN Ia 0.022 Ia 0.022 -7 02:46:55.170 -24:48:23.98 SN Ia 0.025
TNS 2019giq [ATLAS19lzg] 23:31:41.807 -13:15:03.67 SN Ia 0.03 Ia 0.03 -6 23:31:41.818 -13:15:03.53 SN Ia 0.03
TNS 2019gvo [ASASSN-19oe] 00:54:30.814 -49:08:54.02 SN Ia 0.05 Ia 0.05 0 00:54:30.814 -49:08:54.02 SN Ia 0.05
TNS 2019gwx [ZTF19aaxibpz] 23:10:01.021 +09:37:12.31 SN Ia 0.071 Ia 0.071 -5 23:10:01.021 +09:37:12.31 SN Ia 0.065
TNS 2019gql [ASASSN-19nx] 00:51:40.939 -13:19:03.79 SN II 0.021 II 0.021 00:51:40.874 -13:19:05.80 SN II 0.021

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