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ePESSTO spectroscopic classification of optical transients

ATel #12555; A. S. Carracedo, C. Barbarino (Stockholm Univ.), V. Brinnel (HU Berlin), L. Tartaglia, J. Sollerman (Stockholm Univ.), M. Dennefeld (IAP, Paris), M. Fraser (UCD), C. Inserra (Cardiff), E. Kankare (Turku), K. Maguire, S. J. Smartt, D. R. Young, K. W. Smith, O. McBrien (QUB), O. Yaron, I. Manulis (Weizmann), J. Tonry, L. Denneau., A. Heinze, H. Weiland (IfA, Univ. of Hawaii), B. Stalder (LSST), A. Rest (STScI), D. E. Wright (Univ. of Minnesota)
on 7 Mar 2019; 15:34 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Leonardo Tartaglia (leonardo.tartaglia@astro.su.se)

Subjects: Optical, 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 the ATLAS survey, see Tonry et al. (2011, PASP, 123, 58) and Tonry et al. (ATel #8680) and the Zwicky Transient Facility (https://www.ztf.caltech.edu/; Kulkarni et al. 2018, ATel #11266) data stream processed through the Lasair broker (http://lasair.roe.ac.uk/). All observations were performed on the ESO New Technology Telescope at La Silla on 2019-03-06, using EFOSC2 and Grism 13 (3985-9315A, 18A resolution). Classifications were done with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024) and GELATO (Harutyunyan et al., 2008, A&A, 488, 383). Classification spectra and additional details for SNe 2019bff, 2019bkf and 2019bkc 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 
ZTF19aaksxgp  |    --     | 13 50 43.91   | -02 30 25.00 |  20190212  |   ZTF    |   19.51  | 0.046 |  IIn  |  --   | (1) 
ZTF19aakozyp  | SN2019bff | 14 14 31.79   | +17 13 58.66 |  20190224  |   ZTF    |   19.03  | 0.043 |  Ia   | -5d   | (2) 
ATLAS19dqu    | SN2019bkf | 13 44 52.03   | -18 18 46.88 |  20190217  |  ATLAS   |   18.39  | 0.055 |  Ia   | 15d   | (2) 
ATLAS19dqr    | SN2019bkc | 10 00 22.54   | -03 01 12.6  |  20190302  |  ATLAS   |   17.96  | 0.040 |  Ic   |  --   | (3) 

(1) The redshift has been measured from the positions of the narrow emission lines.
(2) The redshift is given by the SNID fit.
(3) Not a perfect match, most like a SN Ic. Earlier spectrum from LT on TNS. SNID favors redshift around 0.04.