AstroNote 2020-52

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2020-02-26 19:18:30
Type: Object/s-Discovery/Classification
ePESSTO+ spectroscopic classification of optical transients
Authors: A. Möller, M. Amenouche (Clermont-Ferrand), M. Smith, T. Muller Bravo, M. Pursiainen (Southampton), C. R. Angus (DARK), M. Dennefeld (IAP), S. Srivastav (QUB), S. C. Williams (Turku), S. Benetti (INAF), T. Wevers (Cambridge), 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)
Source Group: ePESSTO+
This report includes classifications of 4 SNe Ia and 2 SNe II.

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 Zwicky Transient Facility ZTF (Kulkarni 2018 2018ATel11266....1K) - data stream processed through the Lasair broker (Smith, Williams, Young et al. 2019 2019RNAAS...3a..26S) and 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 2020 Feb 25, 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 RedshiftSourcePhase (days)RemarksTNS RATNS DECTNS Obj-TypeTNS Redshift
TNS2020cvy [ZTF20aaophpu]08:00:49.284+27:29:54.90SN II0.017near max08:00:49.260+27:29:54.92SN II0.017
TNS2020cwa [ZTF20aaovqfy]10:42:46.413-00:58:28.35SN II0.039pre-max10:42:46.404-00:58:28.42SN II0.039
TNS2020cyx [ZTF20aaporoa]13:28:35.061-13:00:06.39SN Ia0.037WISEA J132834.80-130008.6near max13:28:35.062-13:00:06.34SN Ia0.037
TNS2020czb [ZTF20aappghn]15:15:36.287+04:13:54.09SN Ia0.099DES J151536.35+041352.70.09861near max15:15:36.287+04:13:54.09SN Ia0.099
TNS2020dht [ASASSN-20cj]13:53:12.461-40:21:49.57SN Ia0.039PGC587284near max13:53:12.461-40:21:49.57SN Ia0.039
TNS2020ddr [ZTF20aapadwx]14:24:47.385+26:17:15.64SN Ia0.0375near max14:24:47.385+26:17:15.64SN Ia0.0375