DRAFT
2020-12-10 10:59:18
Type: Object/s-Discovery/Classification
Bibcode: 2020TNSAN.248....1P
ePESSTO+ spectroscopic classification of optical transients
Authors: P. Pessi (ESO), J. Anderson (ESO), L. Galbany (Granada), C. Gutierrez (Turku), T. Schweyer (Stockholm), S. Benetti (INAF), T. Muller Bravo (Southampton), T.-W. Chen (Stockholm), M. Gromadzki (Warsaw), C. Inserra (Cardiff), E. Kankare (Turku), M. Nicholl (Birmingham), O. Yaron, I. Irani (Weizmann), D. 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 (QUB)
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Abstract:
This report includes classifications of 1 Type Ia, 1 Type II, and a very young Type IIb SNe. SN2020abbw looks similar to the peculiar SNIa PTF11kx.

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 Pan-STARRS Survey for Transients (Chambers et al. 2016 2016arXiv161205560C), the ATLAS survey (Smith et al. 2020 2020arXiv200309052S), the Zwicky Transient Facility ZTF (Bellm et al. 2019 2019PASP..131a8002B) - 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), the PMO-Tsinghua Transient Survey PTSS, and by the ESA Gaia Photometric Science Alerts Team DPAC.

Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2020 December 9, 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 Phase (days) Remarks TNS RA TNS DEC TNS Obj-Type TNS Redshift
TNS 2020acat [ATLAS20bhfe] 11:50:41.209 -10:13:38.72 SN IIb 0.007932 ATLAS -19 Known host redshift from NED. 11:50:41.225 -10:13:38.92 SN IIb 0.0079
TNS 2020abbw [ZTF20actvgjx] 09:31:03.396 +23:53:06.43 SN Ia-pec 0.105 ZTF +8 09:31:03.396 +23:53:06.43 SN Ia-pec 0.105
TNS 2020absz [ZTF20acviwgj] 06:31:46.746 -17:37:09.75 SN II 0.021298 ZTF +10 Known host redshift from NED. 06:31:46.740 -17:37:09.70 SN II 0.0213

Comments