ePESSTO spectroscopic classification of optical transients

ATel #12530; C. Barbarino, A. S. Carracedo, L. Tartaglia, J. Sollerman (Stockholm Univ.), K. Maguire (QUB), J. Anderson (ESO), O. Yaron (Weizman), T.-W. Chen (MPE), C. Inserra (Cardiff), E. Kankare (Turku), S. J. Smartt, D. R. Young, K. W. Smith (QUB), I. Manulis (Weizmann), J. Tonry, L. Denneau., A. Heinze, H. Weiland (IfA, Univ. of Hawaii), B. Stalder (LSST), A. Rest (STScI), O. McBrien (QUB), D. E. Wright (Univ. of Minnesota)
on 25 Feb 2019; 16:29 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Leonardo Tartaglia (leonardo.tartaglia@astro.su.se)

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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 All Sky Automated Survey for SuperNovae ASAS-SN (see Shappee et al. 2014, ApJ, 788, 48 and http://www.astronomy.ohio-state.edu/~assassin/index.shtml ). All observations were performed on the ESO New Technology Telescope at La Silla on 2019-02-24, 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 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 
ATLAS19djo  | SN2019axz | 14 30 16.70   | -43 33 41.09 |  20190217  |  ATLAS   |   17.8   | 0.015 |  II  | 15d   | (1,2) 
ASASSN-19dj | AT2019azh | 08 13 17.05   | +22 38 54.49 |  20190222  | ASAS-SN  |   16.2   | 0.022 |  ?   |  ?    | (3,4) 

(1) The redshift is given by the SNID fit.
(2) SN2019axz was observed as part of the GREAT survey (Chen et al. 2018, ApJ, 867L, 31), having a black body temperature of T_BB ~ 15000+/-1000 K obtained from the photometry taken on 2019-02-20 with griz= 17.5, 17.5, 17.8, 17.9 mag calibrated against GROND zero point.
(3) Galaxy spectrum: blue continuum (T~11000 K, stronger than that of the host, see also ATel #12529) with relatively narrow absorption features.
(4) The redshift is obtained from the host spectrum in the SDSS archive.