AstroNote 2019-5

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2019-04-26 21:01:37
Type: Object/s-Discovery/Classification
ePESSTO+ spectroscopic classification of optical transients
Authors: M. Nicholl, P. Short (Univ. Edinburgh), C. R. Angus, P. Wiseman, M. A. Pursiainen, M. Smith (Univ. Southampton), S. Taubenberger (MPA-Garching), M. Gromadzki (Univ. Warsaw), T.-W Chen (MPE), C. Frohmaier (ICG), J. Anderson (ESO), C. Inserra (Cardiff), O. Yaron, I. Manulis (Weizmann), D. R. Young, S. J. Smartt, K. W. Smith, D. R. Young (QUB), D. E. Wright (Univ. of Minnesota), K. C. Chambers, H. Flewelling, M. Huber, T. Lowe, E. Magnier, A. Schultz, C. Waters, R. J. Wainscoat, M. Willman (IfA, Univ. of Hawaii)
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 Pan-STARRS Survey for Transients (Chambers et al. 2016 2016arXiv161205560C), and by the Zwicky Transient Facility (Kulkarni 2018 2018ATel11266....1K) and processed through the Lasair broker (Smith, Williams, Young et al. 2019 2019RNAAS...3a..26S).

All observations were performed on the ESO New Technology Telescope at La Silla on 2019 April 25, using EFOSC2 and Grism 13 (3985-9315A, 18A resolution). Classifications were done with SNID (Blondin & Tonry 2007 2007ApJ...666.1024B), 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. 

The Notes correspond to the following:

(1) Redshift from broad H-alpha based on SNID fit.
(2) Unidentified red continuum, Redshift from host galaxy lines in the spectrum.
(3) The spectrum is low S/N, but best fit to type IIn SN 2005kj.
(4) Transient not seen in acquisition image (to limiting mag 23).
(5) Target chosen due to overlap with localisation map of GW190425.

Show current TNS values
CatalogNameReported RAReported DECReported Obj-TypeReported RedshiftHost NameHost RedshiftNotesRemarksTNS RATNS DECTNS Obj-TypeTNS Redshift
TNS2019ebp [PS19qo]16:59:57.752+12:06:18.301, 516:59:57.752+12:06:18.30SN II0.057
TNS2019ebq [PS19qp]17:01:18.339-07:00:10.522, 517:01:18.339-07:00:10.52SN Ib/c0.037
TNS2019dzw [ZTF19aarzaod]17:31:09.957-08:27:02.603, 517:31:09.957-08:27:02.60SN IIn0.028
TNS2019ebm [ATLAS19hwn]12:59:58.582+29:14:30.734, 512:59:58.582+29:14:30.73