DRAFT
2019-05-15 06:13:43
Type: Object/s-Discovery/Classification
Bibcode: 2019TNSAN..14....1N
ePESSTO+ spectroscopic classification of optical transients
Authors: M. Nicholl, P. Short (Univ. Edinburgh), C. Angus (Univ. Southampton), T. Muller, M. Pursiainen (Univ. Southampton), C. Barbarino (Univ. Stockholm), M. Dennefeld (IAP), S. C. Williams (Lancaster), A. Pastorello (INAF), M. Smith (Univ. Southampton), S. Benetti (INAF), R. Cartier (CTIO), J. Anderson (ESO), T.-W. Chen (MPE), C. Inserra (Cardiff), D. R. Young (QUB), O. Yaronת 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 by the ESA Gaia Photometric Science Alerts Team DPAC.

Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on 2019 May 14 (UTC), 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 2019evq [Gaia19bsj] 21:13:54.720 +11:21:25.49 Gaia Location consistent with MASIV J2113+1121 21:13:54.720 +11:21:25.49 QSO 1.316
TNS 2019exh [ATLAS19kej] 20:37:40.127 +05:30:12.25 ATLAS Matches classification reported in TNS Classification Report No. 4067 20:37:40.127 +05:30:12.25 CV
TNS 2019exy [ASASSN-19mh] 23:45:41.784 -38:31:04.33 ASAS-SN at max Redshift obtained from template fitting. The redshift from the fit approximately matches the host galaxy photo-z. 23:45:41.784 -38:31:04.33 SN Ia 0.049
TNS 2019fce [ATLAS19kmq] 20:08:07.442 +10:31:30.52 ATLAS -7 to -4 Redshift obtained from best fitting template. 20:08:07.442 +10:31:30.52 SN II 0.041
TNS 2019fcf [ATLAS19kmr] 17:40:17.632 +17:41:38.82 ATLAS -7 to -4 Redshift obtained from best fitting template. 17:40:17.630 +17:41:39.16 SN Ia 0.052
TNS 2019fcg [ASASSN-19mk] 21:30:28.486 -32:36:43.31 ASAS-SN > +20 Possibly a Ia-CSM / Ic-CSM; spectrum shows a close match to SN 2005gj. 21:30:28.510 -32:36:44.28 SN IIn 0.055
TNS 2019fcn [ASASSN-19ml] 08:07:08.057 -28:03:22.75 ASAS-SN at max Redshift obtained from the host galaxy. 08:07:08.054 -28:03:22.90 SN II 0.003
TNS 2019fda [ZTF19aaumtxz] 17:47:49.043 +18:41:13.05 ZTF 17:47:49.040 +18:41:13.06 Varstar

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