AstroNote 2019-21

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2019-06-01 14:03:34
Type: Object/s-Discovery/Classification
ePESSTO+ spectroscopic classification of optical transients
Authors: C. Frohmaier, E. Swann (ICG; Portsmouth), P. Short, M. Nicholl (Edinburgh), H. Kuncarayakti (Turku), M. Gromadzki (Warsaw), L. Galbany (Pittsburgh), J. Anderson (ESO), T. Muller Bravo (Southampton), T.-W. Chen (MPE), C. Inserra (Cardiff), E. Kankare (Turku), O. Yaron (Weizmann), D. R. Young (QUB), 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+

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), 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 2019 May 31, 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 DASH (Muthukrishna et al. 2019, arXiv:1903.02557).

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 RedshiftSourceReported TypeReported RedshiftPhase (days)RemarksTNS RATNS DECTNS Obj-TypeTNS Redshift
TNS2019fzm [ASASSN-19nn]14:56:32.870-02:06:23.72SN Ia0.023SN Ia0.023-7 to -4 d14:56:32.890-02:06:23.22SN Ia0.02313
TNS2019fzu [ATLAS19llw]19:48:31.010-11:46:01.14CV0CV19:48:31.010-11:46:01.14CV
TNS2019fyr [ZTF19aavigow]18:02:27.872+08:06:34.50Other0UnknownLow S/N spectrum, photometric properties suggest stellar flare18:02:27.872+08:06:34.50
TNS2019gaf [ATLAS19lsc]20:36:55.248+02:48:24.48SN IIb0.006SN IIb0.006pre-max20:36:55.239+02:48:24.62SN IIb0.006
TNS2019gfb [ASASSN-19nv]23:47:25.850+00:56:58.45SN Ia0.027SN Ia0.027-7 to -4 d23:47:25.909+00:56:57.79SN Ia0.027
TNS2019fxt [ATLAS19ljs]20:18:48.556+05:30:46.01SN Ia0.067SN Ia0.067at max20:18:48.550+05:30:45.54SN Ia0.067