ePESSTO+ classification of optical transients

ATel #12752; M. Nicholl, P. Short (Univ. Edinburgh), C. Angus, T. Muller, M. Pursiainen (Univ. Southampton), C. Barbarino (Univ. Stockholm), M. Dennefeld (IAP), S. C. Williams (Lancaster), D. A. Perley (LJMU), S. Benetti (INAF), J. Anderson (ESO), T.-W. Chen (MPE), C. Inserra (Cardiff), 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)
on 13 May 2019; 17:11 UT
Credential Certification: Charlotte Angus (c.r.angus@soton.ac.uk)

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ePESSTO+, the advanced 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. The targets were supplied by the ATLAS survey, see Tonry et al. (2018, PASP, 130, 064505), 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/), PMO-Tsinghua Transient Survey (PTSS; http://www.cneost.org/ptss2/index.php ) and the ESA Gaia Photometric Science Alerts Team and DPAC (http://gsaweb.ast.cam.ac.uk/alerts). All observations were performed on the ESO New Technology Telescope at La Silla on 2019-05-12, 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 
ZTF19aapreis | AT2019dsg | 20 57 02.97    | +14 12 15.86    |  20190409  |  ZTF     |   18.9   |0.0512 |  TDE     |   -      | (1) 
Gaia19blq    | SN2019dts | 22 34 06.16    | +05 34 16.82    |  20190420  |  Gaia    |   19.5   | 0.015 |  II      | +8 to +10| (1) 
ZTF19aarnqys | SN2019dxr | 15 11 27.14    | +05 12 01.59    |  20190415  |  ZTF     |   20.5   | 0.04  |  Ib      |+11 to +20| (1) 
PTSS-19clej  | AT2019ejk | 13 16 52.28    | +12 32 44.02    |  20190501  |  PTSS    |   17.8   | 0.003 | unknown  |   -      | (2) 
ATLAS19ine   | SN2019enz | 13 57 06.10    | +27 59 38.71    |  20190504  |  ATLAS   |   19.7   | 0.22  |  SLSN-I  | pre-max  | (3) 

(1) The redshift was derived from the host galaxy.
(2) The spectrum shows a blue continuum and narrow host galaxy emission lines consistent with z=0.003. No clear stellar-like source is seen in the 2D spectrum.
(3) The redshift found from template fitting.