ePESSTO spectroscopic classification of optical transients

ATel #12367; O. Rodriguez (UNAB/MAS), G. Pignata (UNAB/MAS), M. Gromadzki (Warsaw), T.-W. Chen (MPE), J. Anderson (ESO), A. Pastorello (INAF), C. Inserra (Cardiff), E. Kankare (Univ. of Turku), K. Maguire (QUB), S. J. Smartt (QUB), O. Yaron (Weizmann), I. Manulis (Weizmann), D. R. Young (QUB) J. Tonry (IfA, Univ. of Hawaii), L. Denneau. (IfA, Univ. of Hawaii), A. Heinze (IfA, Univ. of Hawaii), H. Weiland (IfA, Univ. of Hawaii), B. Stalder (LSST), A. Rest (STScI), K. W. Smith (QUB), O. McBrien (QUB), D. E. Wright (Univ. of Minnesota)
on 8 Jan 2019; 15:54 UT
Credential Certification: Mariusz Gromadzki (marg@astrouw.edu.pl)

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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 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 Jan 7, 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 
ATLAS19abc   | SN2019bp   | 06 22 21.9	| +29 19 22.30 |  20190102  |  ATLAS  |  18.9    | 0.022 |  Ia  |    -10d   | 
ZTF18adcakbo | SN2019bt   | 10 06 51.2	| +03 37 21.36 |  20190103  |    ZTF  |  19.4    | 0.102 |  Ia  | -6 to -3d |  (1) 
ZTF18adbzccu | AT2018lkb  | 11 31 51.6  | -12 31 58.68 |  20181230  |    ZTF  |  18.0    | 0.654 | AGN  |           | 
ZTF18adbyxua | SN2018lhw  | 11 50 58.1  | +10 23 35.35 |  20181231  |    ZTF  |  19.8    | 0.107 |  Ia  |     -2d   |  (1) 
ATLAS19abg   | SN2019ci   | 09:43:27.6	| -05 23 26.82 |  20190103  |  ATLAS  |  19.4    | 0.040 |  II  | 40 to 60d |  (2) 

(1) Redshift derived from SNID.
(2) Redshift derived from lines measurements. Additionally, Hydrogen lines show low expansion velocities (~2000-2500 km/s). The spectrum resemble those of 2005cs-like IIPs, at 40-60 days after core-collapse.