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ePESSTO spectroscopic classification of optical transients

ATel #12486; E. Palazzi (INAF-OAS Bologna), R. Carini (INAF-OAR), E. Cappellaro, A. Fiore (INAF-OAPd), N. Elias-Rosa (ICE-CSIC), M. Gromadzki (Univ. Warsaw), T.-W. Chen (MPE), C. Inserra (Univ. Cardiff), E. Kankare (Univ. Turku), K. Maguire, S. J. Smartt (QUB), 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 (QUB), O. McBrien, D. E. Wright (Univ. of Minnesota)
on 9 Feb 2019; 15:47 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Enrico Cappellaro (enrico.cappellaro@oapd.inaf.it)

Subjects: Optical, Transient

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. The 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/).
Observations were performed on the ESO New Technology Telescope at La Silla on 2019-02-08, using EFOSC2 and Grism 13 (3685-9315, 21A 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 
ATLAS19cnn   | SN2019amo | 14 07 21.93 | -01 05 32.8 | 20190204   | ATLAS  | 19.40    | 0.055  |  Ia  |  -6   | (1) 
ZTF18aahsqfq |           | 12 05 54.20 | +20 34 20.7 | 20190109   |  ZTF   |  19.46   | 0.0235 |  Gal |       | (2) 

(1) The redshift of the host galaxy was retrieved from NED. The expansion velocity deduced from the SiII 635.5nm minimum is about 11000 km/s. This transient was observed as part of the GREAT survey (Chen et al. 2018, ApJ, 867L, 31), having a black body temperature of T_BB ~ 12300+/-300 K obtained from the photometry taken on 07.02.2019 with griz= 18.65, 18.76, 18.93, 19.05 mag
(2) the spectrum is that typical of an old stellar population consistent with that expected from the host galaxy nucleus at the given redshift (0.0238 as listed in NED)