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ePESSTO+ spectroscopic classification of optical transients

ATel #12697; M. Nicholl (Univ. Edinburgh), P. Short (Univ. Edinburgh), C. R. Angus (Univ. Southampton), P. Wiseman (Univ. Southampton), M. A. Pursiainen (Univ. Southampton), S. Taubenberger (MPA-Garching), M. Gromadzki (Univ. Warsaw), T.-W Chen (MPE). C. Frohmaier (ICG), M. Smith (Univ. Southampton). J. Anderson (ESO), C. Inserra (Cardiff), O. Yaron (Weizmann), D. R. Young (QUB), I. Manulis (Weizmann), S. J. Smartt (QUB), K. W. Smith (QUB), 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)
on 26 Apr 2019; 17:14 UT
Credential Certification: Charlotte Angus (c.r.angus@soton.ac.uk)

Subjects: Optical, Gravitational Waves, Supernovae

ePESSTO+, the extended Public ESO Spectroscopic Survey for Transient Objects (see Smartt et al. 2015, A&A, 579, 40 http://www.pessto.org ), reports the following supernova classifications. Targets were supplied by Pan-STARRS Survey for Transients (see Chambers et al. 2016, arXiv:1612.05560, and http://pswww.ifa.hawaii.edu ), and by the Zwicky Transient Facility (https://www.ztf.caltech.edu/; Kulkarni et al. 2018, ATel 11266) and processed through the Lasair broker (Smith, Williams, et al. 2019, RNAAS, 3, 26; https://lasair.roe.ac.uk/). 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, ApJ, 666, 1024), GELATO (Harutyunyan et al., 2008, A&A, 488, 383) and superfit (Howell et al., 2005, ApJ, 634, 1190). Classification spectra and additional details can be obtained from http://www.pessto.org (via WISeREP) and the IAU Transient Name Server.

 
Survey Name  | IAU Name  | RA (J2000) | Dec (J2000) | Disc. Date | Source  | Disc Mag |  z    | Type | Phase   | Notes 
PS19qo       | SN2019ebp | 16 59 58   | +12 06 18.2 |  20190425  |  PS     |  20.3    | 0.057 |  II  | prepeak | (1,5) 
PS19qp       | AT2019ebq | 17 01 18   | -07 00 10.5 |  20190425  |  PS     |  20.4    | 0.037 | .... | ....    | (2,5) 
ZTF19aarzaod | SN2019dzw | 17 31 10   | -08 27 02.5 |  20190425  |  ZTF    |  20.5    | 0.028 |  IIn | prepeak | (3,5) 
ATLAS19hwn   | AT2019ebm | 12 59 59   | +29 14 30.7 |  20190425  |  ATLAS  |  19.4    | ..... | .... |  ....   | (4,5) 
 

(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 SN2015kj
(4) Transient not seen in acquisition image (limit 23 mag)
(5) Target chosen due to overlap with localisation map of GW190425