AstroNote 2019-151

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2019-12-08 15:26:15
Type: Object/s-Discovery/Classification
ePESSTO+ spectroscopic classification of optical transients
Authors: N. Ihanec (Warsaw), T. Wevers (Cambridge), E. Callis (UCD), M. Gromadzki (Warsaw), L. Galbany (UGR), M. Dennefeld (IAP), S. Srivastav (QUB), P. Wiseman (Univ. Southampton), J. Anderson (ESO), T. Muller Bravo (Southampton), T.-W. Chen (Stockholm), C. Inserra (Cardiff), E. Kankare (Turku), M. Nicholl (Birmingham), O. Yaron (Weizmann), D. Young (QUB), I. Manulis (Weizmann), L. Wyrzykowski,(Warsaw)
Source Group: ePESSTO+
This report includes classifications of 3 Type Ia's. Additionally, OGLE19ugq is an AGN with broad MgII and Hbeta emission lines at z=0.453 and AT2019vrc was not visible in 30s acquisition image.

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), OGLE-IV Real-time Transient Search (Wyrzykowski et al., 2014 arxiv:1409.1095, 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 the night of 2019 December 07, 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
TNS2019vrm [ZTF19aculczm]00:20:18.296-05:18:25.03SN Ia0.068SDSS J002018.32-051825.2ZTF+1 - +4Redshift from SNID00:20:18.301-05:18:24.99SN Ia0.068
TNS2019ugq [OGLE19ugq]02:37:56.640-74:59:49.20AGN0.453OGLE-GAL-MBR120.31-1798.171-3973.506Spectrum shows blue continuum and MgII, Hbeta and [O III] emission lines. Redshift form emission lines02:37:56.640-74:59:49.20AGN0.453
TNS2019wbt [Gaia19fjm]07:59:53.730-50:20:15.36SN Ia0.023PGC4674870.023+5Redshift from NED catalogue07:59:53.730-50:20:15.36SN Ia0.023
TNS2019vqc [ASASSN-19abw]05:00:47.230-45:52:24.74SN Ia0.0496dF J0500474-4552250.049187ASAS-SN+9Redshift from NED catalogue05:00:47.230-45:52:24.74SN Ia0.049