AstroNote 2019-159

Primary tabs

2019-12-20 13:25:20
Type: Object/s-Discovery/Classification
ePESSTO+ spectroscopic classification of optical transients
Authors: T. Müller Bravo, P. Wiseman, M. Pursiainen (Southampton), T.-W. Chen (Stockholm), M. Fraser (UCD), G. Pignata (UNAB/MAS), J. Anderson (ESO), 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 1 Type Ia SN around peak brightness, and 2 Type Ia SNe about 1 week before peak brightness.

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).

Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2019 December 19, using EFOSC2 and Grism 13 (3985-9315A, 18A resolution). Classifications were done using SNID (Blondin & Tonry 2007 2007ApJ...666.1024B).

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
TNS2019xbg [ZTF19adaiyud]10:33:08.326-22:11:21.32SN Ia0.082MASX J10330764-22114090.0790Redshift from SNID fit matches that from host, remote at d ~ 30 kpc.10:33:08.332-22:11:21.36SN Ia0.08
TNS2019xck [ZTF19aczeomw]06:28:16.825+23:36:30.93SN Ia0.035WISEA J062816.36+233627.60.035-5Redshift from SNID fit matches that of host06:28:16.825+23:36:30.93SN Ia0.035
TNS2019wyw [ZTF19aczjsqn]09:24:07.028+02:22:07.09SN Ia0.089SDSS J092407.08+022207.90.08892-7Redshift from SNID fit matches that from host09:24:07.012+02:22:07.02SN Ia0.089